1978 GMC P15 Performance and Racing Products
Find Your Specific 1978 GMC P15 Performance and Racing Products
Below you will find various in-demand GMC Performance and Racing Products, components and accessories for your 1978 P15. Advance Auto Parts has popular P15 parts like Performance Exhaust Products, Performance Ignition Products, Performance Engines and more. You’ll also find aftermarket and OEM Performance and Racing Products for other P15 model years including
1975,
1976,
1977 and more. Select a category of 1978 GMC P15 Performance and Racing Products below and start saving instantly.
Popular 1978 GMC P15 Performance and Racing Products Categories
Essential Performance and Racing Products for 1978 GMC P15s
FEL-PRO Performance – FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1640 (Part No.1640)
from
$22.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Lakewood – Lakewood Trans Mount: Urethane-Chevy, 24350 (Part No.24350)
from
$103.99
Constructed of durable polyurethane to handle the stress oh high horsepower. Absorbs vibration and lasts longer than rubber Features unique built-in safety lock to keep from separating under high torque loads. Ideal for use on street or strip applications. Complete with grade-8 mounting hardware.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE EXHAUST MANIFOLD GASKET SET, 1448 (Part No.1448)
from
$35.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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B & M – B & M Flexplate For 168 Tooth, 2-Piece Rear Main Seal, Chevy V8, 20230 (Part No.20230)
from
$179.99
As performance levels increase, an O.E. style flex plate just won’t cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance SFI approved flex plate designed for 1955-1985 GM small block (internally balanced) V8 engines along with 4.3L V6 engines. Also fits 1965-up GM big block (internally balanced) V8 engines with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5 inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1819 (Part No.1819)
from
$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Accel – Accel Ignition Coil – SuperCoil – HEI in Cap – 1973-1997 – Red and White Pri Wire – Oldsmobile V8 – Pontiac V8 – 1981-91 Corvette., 140005 (Part No.140005)
from
$131.99
Engineered for higher energy output resulting in quicker starting, improved idle quality, crisper throttle response and more high RPM power. Compatible with both original HEI ignition systems and later model computer controlled HEI systems. No need to remove or re-time distributor. Complete with simplified ground strap, mounting screws, silicone coil gasket and carbon contact brush / spring.
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FEL-PRO Performance – FEL-PRO Performance Engine Crankshaft Seal Kit, 2912 (Part No.2912)
from
$38.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Richmond Gear – Richmond Gear Ring and Pinion Set, 12BT373T (Part No.12BT373T)
K&N – K&N Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine, HP-3002 (Part No.HP-3002)
from
$18.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.
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Mallory – Mallory Unilite Ignition Module, 605 (Part No.605)
from
$99.99
Requires a 1.4 ohms Ballast resistor, Loom resistor or internally resisted coil.
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Mr. Gasket – Mr. Gasket A/Tdipstick, 9703G (Part No.9703G)
from
$101.99
Billet aluminum handle with flexible braded steel tube mounts to the firewall. 29-3/4 inch long.
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Mr. Gasket – Mr. Gasket Thermocap Radiator Cap, 2471S (Part No.2471S)
from
$55.29
Knowing your coolant temperature can help to prevent burn injuries. Thermocap Cap, with its built-in calibrated thermometer, indicates the coolant temperature. This is useful information prior to cap removal. Never attempt to remove Thermocap Cap when the coolant temperature is very hot. The escaping hot coolant and steam may burn you. Reclamation valve works great with your coolant recovery system. Your radiator can reclaim coolant from your overflow bottle. Wide 30 degree to 270 degree F temperature range. Calibrated in centigrade and Fahrenheit. Color-coded temperature ranges.
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Mr. Gasket – Mr. Gasket Thermocap Radiator Cap, 2470R (Part No.2470R)
from
$58.99
The fastest, easiest way to know exactly when it’s safe to open your radiator cap. ThermoCap, with its built-in calibrated thermometer, indicates the coolant temperature.
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B & M – B & M Transpak For 65-87 Th400 Transmission, 20228 (Part No.20228)
from
$172.99
The B&M Transpak is the next step up from the B&M Shift Improver kit. It has all the features in the Shift Improver kit, plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). B&M Transpak kit for 1965-1987 GM TH400/375 automatic transmissions. Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty is for street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort and offers normal automatic operation when in Drive. Stage 2 is for Hi-Performance street use. Essentially the same as Heavy Duty mode except shifts are much quicker. Retains full automatic features and standard shift points with selector in Drive.
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B & M – B & M Tork Master 2400, 20404 (Part No.20404)
from
$399.99
The Tork Master 2400 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle
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B & M – B & M Tork Master 3000, 20402 (Part No.20402)
from
$584.99
The Tork Master 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C) transmissions. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle
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B & M – B & M Automatic Shifter – Pro Ratchet – Universal, 80842 (Part No.80842)
from
$460.99
“Track-favorite simplicity with bulletproof execution: the Pro Ratchet self-centers after each shift, won’t over-shift, and integrates a one-hand reverse lockout meeting NHRA/IHRA rules. It adds a brushed cover, classic white knob, neutral safety and backup-light switches, gear indicator, 5-ft Super-Duty cable, brackets, levers, and hardware for most Chrysler, Ford, and GM 3-/4-speeds (install kits may be required). Overall: 10.75″” L x 2.9″” W x 9.25″” H.”
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B & M – B & M Transmission Cast Deep Pan, Brushed Finish Th-350, 30280 (Part No.30280)
from
$311.99
Our Hi-Tek deep transmission pans are constructed from A356-T6 aluminum and are cast with thick internal and external fins, adding additional strength and increased cooling properties. The deep pan design increases fluid capacity by 3-quarts over the stock O.E. steel pan. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, transmission fluid and corresponding components. Other features for this popular pan include a filter, filter extension, pan gasket and drain port with magnetic drain plug for clean and easy servicing. Also includes a 1/8 inch NPT temperature sensor port for easily adding a temp gauge for monitoring transmission temperatures while daily driving, towing or racing. Includes detailed instructions with all necessary hardware for an easy at home installation.
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B & M – B & M Transmission Cast Deep Pan, Brushed Finish – Th400, 20280 (Part No.20280)
from
$299.99
Our Hi-Tek deep transmission pans are constructed from A356-T6 aluminum and are cast with thick internal and external fins, adding additional strength and increased cooling properties. The deep pan design increases fluid capacity by 2-quarts over the stock O.E. steel pan. All these features combined help dissipate heat quicker netting lower transmission and fluid temperatures prolonging the life of your transmission, transmission fluid and corresponding components. Other features for this popular pan include a filter extension, pan gasket and drain port with magnetic drain plug for clean and easy servicing. Also includes a 1/8 inch NPT temperature sensor port for easily adding a temp gauge for monitoring transmission temperatures while daily driving, towing or racing. Includes detailed instructions with all necessary hardware for an easy at home installation.
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Dorman – Help – Dorman – Help Radiator Drain Cocks, 61132 (Part No.61132)
from
$7.99
This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.
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FEL-PRO Performance – FEL-PRO Performance Performance Cylinder Head Gasket, 1025 (Part No.1025)
from
$74.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.
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B & M – B & M Automatic Shifter – Z-Gate – Universal, 80681 (Part No.80681)
from
$299.99
“Sometimes the best design is the simplest one, and the Z-Gate shifter is a great example of just that. With the fewest moving parts of any automatic shifter in the B&M line, the Z-Gate shifter and its patented internal “”Z”” shaped gate system eliminates the possibility of over-shifting and missing gears. Fewer moving parts means less possibility of failure and with many of the same great features of the higher priced shifters, you just can’t go wrong! The Reverse lockout meets NHRA and IHRA requirements. Includes neutral safety switch, backup light switch, black T-Handle. Fits most popular 3-speed transmission applications. Notes: Ford AOD transmissions will require optional kit# 40496″
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B & M – B & M Automatic Shifter – Stealth Pro Ratchet – Universal, 81120 (Part No.81120)
from
$579.99
One of B&M’s easiest race shifters to drive, the Stealth Pro Ratchet self-centers after each pull so you can’t over-shift a gear, and integrates a one-hand reverse lockout meeting NHRA/IHRA rules. It includes a neutral safety switch, backup-light switch, a simulated carbon-fiber hydro-dipped aluminum cover for a high-tech look, and the tough black-anodized Magnum Grip handle with replaceable plates. A 5-ft Super-Duty cable, brackets, levers, gear indicator, and hardware are included for popular Chrysler, Ford, and GM transmissions; install kits may be required. Overall: 10.75 x 2.9 x 12 in.
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B & M – B & M Automatic Shifter – Magnum Grip Pro Stick – Universal, 81040 (Part No.81040)
from
$529.99
The Magnum Grip Pro Stick shifter delivers rock-solid performance, mixed with clean design cues and compact size. This is why you see so many Pro Stick shifters at the race track. We start off with a heavy duty steel base with a hardened steel gate plate and a reverse lockout feature that only requires one hand to operate, and complies with NHRA/IHRA safety rules. Then add the billet aluminum Magnum Grip shift handle, with replaceable side grip plates, matching aluminum trigger and finish it off with a brushed aluminum cover with quick release pins, and you end up with one good looking bullet-proof race shifter. Optional Forward and Reverse shift pattern gate plates are available for most popular 2, 3 and 4-speed transmissions. This model Pro Stick comes out of the box ready for action for most popular 3-speed transmissions, includes a 5-foot Super Duty shift cable, brackets, levers, hardware and detailed instructions for an easy installation. Be sure to check out all the optional Magnum Grip side grip plates including the one and two button 12-volt momentary switches or any of the other accessories we offer for the Pro Stick in the Shifter Accessories section. Notes: AOD requires installation kit #40496, AODE & 4R70W requires installation kit #40504, E40D & 4R100 requires installation kit #40505, 2004R & 700R4 require gate plate #80712, 4L60E – 4L85E equipped with PRNDL switch requires cable bracket kit #70499 and gate plate #80712. Overall Dimensions – 8.25L x 2.92W x 10.75H
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B & M – B & M Automatic Shifter – Megashifter – Universal, 80690 (Part No.80690)
from
$549.99
“An icon for a reason: the MegaShifter’s positive ratcheting action and reverse lockout deliver confident shifts and NHRA/IHRA compliance, wrapped in classic T-handle and accordion-boot style. Comes with a trim-to-fit console, 5-ft cable, brackets, levers, chrome top plate with lighted indicator, and everything needed for most Chrysler, Ford, and GM 3-/4-speed autos (additional kits may be required). Overall: 13″” L x 6.6″” W x 12.6″” H.”
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B & M – B & M Automatic Shifter – Unimatic – Universal, 80775 (Part No.80775)
from
$299.99
A clean, manual-4-speed look with simple, durable detent function that uses your transmission’s factory gates. Ideal for column-to-floor conversions, it includes a boot, neutral safety switch, 5-ft performance cable, brackets, levers, and hardware for a straightforward install. While not a race ratchet, it’s tough, trouble-free, and backed by a Lifetime Limited Warranty.
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B & M – B & M Automatic Shifter – Hammer – Universal, 80885 (Part No.80885)
from
$399.99
The Hammer shifter may just be the most comfortable and versatile shifter available. The unique design of the shift handle easily fits all sizes of hands providing the appropriate wrist angle and feel when shifting. The multi-position lockout trigger is spoon-shaped for easy operation in a multitude of grip positions and controls the reverse lockout feature, meeting NHRA/IHRA safety rules. Also features a smooth positive ratchet action, which only allows you to shift one gear at a time, so you’ll never have to worry about missing a gear from over-shifting. Other safety features include a backup light switch, neutral safety switch and illuminated gear position indicator. The result is a shifter that is perfect for all new generation vehicles and street rods where style is not just form, but function. Includes all necessary hardware, console, 5-foot shifter cable, brackets, shift arms and detailed instructions for an easy at home installation. This shifter comes with all necessary parts for use with three and four-speed automatic transmissions such as 1966 and later Chrysler Torqueflite A727, A904, A500, and A518 transmissions. Ford C4, C6 transmissions. GM models TH 200, TH250, TH350, TH400, 2004R, 700R4, 4L60, 4L60E – 4L85E without PRNDL switch transmissions. Notes: Ford AOD trans require installation kit #40496, AODE & 4R70W trans require installation kit #40504 and E40D & 4R100 trans require installation kit #40505. GM 4L60E – 4L85E transmissions with PRNDL switch requires optional lever kit #70499. Overall dimensions – 10L x 6.25W x 13.5H
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B & M – B & M Automatic Shifter – Street Bandit – Universal, 80797 (Part No.80797)
from
$869.99
With its cutting-edge design combined with race-proven mechanics, the Street Bandit offers an unbeatable combination of performance, functionality, and looks! This high-performance street-oriented shifter comes set up for 3-speed transmissions and is packed with all kinds of features. Starting out as a seven-pound block of 6061-T6 aluminum, the Pro Bandit shifter features CNC machined construction, an ergonomically shaped stainless knob with a polished & matte finish, trigger-activated reverse gate release function (does not have a reverse lockout to meet NHRA/IHRA safety rules.) The Street Bandit is compatible with forward or reverse pattern valve bodies and is fully capable of controlling 2, 3 and 4-speed automatic transmissions by simply replacing the hardened steel gate plate, and applicable brackets and levers. Other features include a 4-foot Super Duty shift cable, rear cable exit, chrome shifter bracket, back up light switch, neutral safety switch, cable brackets, and levers for most popular brands of 3-speed auto transmissions. Comes with detailed instructions for an easy installation. Optional gate plates, cable brackets, lever kits, and side grip plates both with and without 12V momentary buttons are available separately. Overall Dimensions – 10L x 1.33W x 9.93H
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Upgrade your 1978 GMC P15 with Top-Quality Performance and Racing Products
When it comes to maintaining or upgrading your 1978 GMC P15, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Performance and Racing Products are key to keeping your P15 functioning at its best. At Advance Auto Parts, we offer a wide selection of 39 Performance and Racing Products for the 1978 GMC P15, designed to meet your needs without breaking the bank.
From
Performance Exhaust Product
replacements to
Performance Ignition Products
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Performance and Racing Products for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Performance and Racing Products for your 1978 GMC P15 at great prices.
Our Performance and Racing Products inventory for this model
ranges from just $7.99 to $921.99, with
an average price of $304.19.
Our 39 Performance and Racing Products in stock come from 9 trusted brands, so you’re sure to find the right part for your 1978 GMC P15 without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1978 GMC P15, we stock popular OEM and aftermarket Performance and Racing Products from top names
like Mallory, Richmond Gear, B & M, and more.
Mallory Performance and Racing Products
start at just $99.99 and boast an impressive 4.9 stars average rating from customers.
Richmond Gear and B & M also bring quality to the table, with Performance and Racing Products available starting at $350.99, and at an average 4.4 stars rating.
With 65 customer reviews and counting, our 1978 GMC P15 Performance and Racing Products have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Performance and Racing Product upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1978 GMC P15 is always ready to roll. We’re committed to providing you with everything you need to keep your P15 in top shape, all in one place.
Start shopping confidently below for your 1978 GMC P15!
Best-Selling Performance Exhaust Products for 1978 GMC P15s
Enhance the driving experience in your GMC with 2 quality Performance Exhaust Product components, starting at $7.99.
Dorman – Help – Dorman – Help Radiator Drain Cocks, 61132 (Part No.61132)
from
$7.99
This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE EXHAUST MANIFOLD GASKET SET, 1448 (Part No.1448)
from
$35.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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Most Popular 1978 GMC P15 Performance Ignition Products
Customize your GMC with 3 Performance Ignition Products products
like Performance Coils and
Performance Ignition Parts, all
priced under $204.99.
Mallory – Mallory Unilite Ignition Module, 605 (Part No.605)
from
$99.99
Requires a 1.4 ohms Ballast resistor, Loom resistor or internally resisted coil.
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Accel – Accel Ignition Coil – SuperCoil – HEI in Cap – 1973-1997 – Red and White Pri Wire – Oldsmobile V8 – Pontiac V8 – 1981-91 Corvette., 140005 (Part No.140005)
from
$131.99
Engineered for higher energy output resulting in quicker starting, improved idle quality, crisper throttle response and more high RPM power. Compatible with both original HEI ignition systems and later model computer controlled HEI systems. No need to remove or re-time distributor. Complete with simplified ground strap, mounting screws, silicone coil gasket and carbon contact brush / spring.
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Mallory – Mallory Promaster Classic Series Ignition Coil, 29440 (Part No.29440)
from
$204.99
The Mallory Promaster Classic series ignition coil is designed to meet today’s specialized ignition requirements. This coil features a faster rise time and increased spark duration (compared to stock) to increase performance. It has a glass-filled polyester case and oil-filled construction to ensure a long life and no energy loss from arcing. This coil also offers excellent wire retention with a spark plug type secondary post, and brass contact terminals.
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Top Picks for 1978 GMC P15 Performance Engines
Upgrade GMC P15s with top-quality Performance Engines parts, including 9 OEM and aftermarket selections for your 1978 model.
B & M – B & M Tork Master 3000, 20402 (Part No.20402)
from
$584.99
The Tork Master 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C) transmissions. Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle
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B & M – B & M Tork Master 2400, 20404 (Part No.20404)
from
$399.99
The Tork Master 2400 fits 1965-91 GM TH400, 425, 375 and 1968-81 GM TH350, 375B (not 350C.) Don’t let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1640 (Part No.1640)
from
$22.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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FEL-PRO Performance – FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1819 (Part No.1819)
from
$31.49
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions
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FEL-PRO Performance – FEL-PRO Performance Performance Cylinder Head Gasket, 1025 (Part No.1025)
from
$74.99
Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions.
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B & M – B & M Performance Torque Converter For Gm Th400, 350, & 375 Transmissions, 20400 (Part No.20400)
from
$349.99
Torque Converter – Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) APPLICATION: Tork Master 2000 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) The Tork Master is B&M’s lowest cost performance torque converter. The Tork Master is an excellent all-around performance street converter. The best value priced street converters available, Tork Master converters come with a new precision pump drive tube and all are pressure tested and fully balanced. The Tork Master torque converter is not recommended for big block or supercharged applications. New alloy steel pump drive tube. Needle thrust bearing when factory equipped. New thrust washer between turbine and cover when required. Due to torque converter core availability, the actual converter size may vary but performance functionality will be as advertised.
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B & M – B & M Holeshot 3000, 20413 (Part No.20413)
from
$921.99
This Holeshot 3000 fits 1965-91 GM TH400, 425, 375 and 1968-81 TH350, 375B (not 350C). Holeshot torque converters are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot 3000 converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. Has both 10.75 and 11.50-inch bolt circles.
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B & M – B & M Torque Converter, Nitrous Holeshot 3600, 20482 (Part No.20482)
from
$799.99
B&M Nitrous HoleShot 3600 stall for 1965-91 TH400, 425 and 1968-81 TH350, 375 (Not TH350C) transmissions is an excellent choice for vehicles with engine modifications, particularly big cams that tend to reduce low end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Nitrous Holeshot converters feature furnace brazed impeller and turbine, new precision steel alloy pump drive tube, new heavy duty needle bearings between the stator and impeller (not a thrust washer) and needle bearings between the stator and turbine. Other features include dual pattern 10.75 and 11.50-inch bolt circle, a new turbine hub, new springs and rollers in the stator and anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower that a nitrous plate system delivers. Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. These are serious converters for serious performance street cars. To prevent contamination left from worn parts being circulated in your new components causing premature wear, we strongly recommend protecting your investment by adding a B&M transmission cooler with all new transmission installations. Listed converters are NOT to be used in trans-brake applications. Not for use in trans-brake applications.
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FEL-PRO Performance – FEL-PRO Performance Engine Crankshaft Seal Kit, 2912 (Part No.2912)
from
$38.99
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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In-Demand Performance Oil Filters for 1978 GMC P15s
Select from 1 premium Performance Oil Filters parts for your 1978 GMC P15.
K&N – K&N Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine, HP-3002 (Part No.HP-3002)
from
$18.99
K&N premium oil filters are meticulously engineered to offer outstanding filtration and engine protection. The heavy-duty canister is engineered to be exceptionally durable, and a one-inch welded hex nut can be used for quick and easy filter removal. Each filter is specifically designed to withstand the service intervals recommended by vehicle manufacturers.
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Most Sold 1978 GMC P15 Performance Drivetrains
Explore our best-selling GMC parts for the 1978 P15 among 5 OEM and aftermarket options starting from $185.99.
Richmond Gear – Richmond Gear Differential Ring And Pinion, 69-0350-1 (Part No.69-0350-1)
from
$350.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!
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Richmond Gear – Richmond Gear Differential Ring And Pinion, 49-0068-1 (Part No.49-0068-1)
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$354.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!
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Richmond Gear – Richmond Gear Differential Ring And Pinion, 69-0206-1 (Part No.69-0206-1)
from
$282.99
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!
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Richmond Gear – Richmond Gear Ring and Pinion Set, 12BT373T (Part No.12BT373T)
Richmond Gear – Richmond Gear Differential Ring And Pinion, 12BT308 (Part No.12BT308)
from
$185.99
Excel’s broad line of original equipment automotive and light truck/SUV replacement ring & pinion gears, axles, and installation kits offer Richmond’s high OEM quality at affordable prices. The Excel product line covers the most popular vehicles on the road today.
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Top-Rated Performance and Racing Products Brands For Your 1978 GMC P15
Shop for the best-rated brands offering Performance and Racing Products and other products for your 1978 GMC P15s. Below you’ll find some of our best rated Performance and Racing Products from Mallory, Richmond Gear, and B & M, and more. Performance and Racing Products from these brands that fit a 1978 P15 start at just $99.99 and are rated as high as 4.9 stars. OEM and aftermarket Performance and Racing Products don’t get more top quality, durable, and affordable than from the brands below.
Popular Mallory 1978 GMC P15 Performance and Racing Products
When it comes to maintaining or upgrading your 1978 GMC P15, using quality Performance and Racing Products is essential to ensure durability and a perfect fit. Mallory ticks all of those boxes. We offer a wide selection of Mallory Performance and Racing Products, specifically designed for the 1978 GMC P15. With over 1 Mallory brand Performance and Racing Products in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $99.99. Plus, with over 3 customer reviews and an average rating of 4.9 stars, you can trust that our Mallory Performance and Racing Products will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$99.99
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Mallory Unilite Ignition Module, 605
“I like the Unilite product because it is so small and compact compared to the HEI stuff I normally use. If you are restricted on space Its a great pro”
Popular Richmond Gear 1978 GMC P15 Performance and Racing Products
Richmond Gear auto parts is one of the highest quality Performance and Racing Product brands in the market. Any 1978 GMC P15 owner should feel confident when installing genuine Richmond Gear parts in their vehicle. To ensure the best fit and performance for your 1978 P15, Advance Auto Parts carries a full inventory of 1 Richmond Gear Performance and Racing Products. Plus you will be keeping your GMC in peak condition while saving money because prices on these Richmond Gear Performance and Racing Products range up to $350.99, plus, with more than 7 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Performance and Racing Products below will deliver on both quality and value.
FAQs for 1978 GMC P15 Performance and Racing Products
Which Performance and Racing Products are best-sellers for 1978 GMC P15s?
Out of 39 Performance and Racing Products that fit 1978 GMC P15s, the following parts are the top sellers:
- B & M Automatic Shifter – Z-Gate – Universal, 80681 (6900216) – $299.99
- FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1640 (19781133) – $22.99
- Lakewood Trans Mount: Urethane-Chevy, 24350 (22901287) – $103.99
What’s the price range for 1978 GMC P15 Performance and Racing Products?
Performance and Racing Product prices for the 1978 GMC P15 start at $7.99 and go up to $921.99 for the most premium parts.
What’s the average price of a Performance and Racing Product for a 1978 GMC P15?
The average price for Performance and Racing Products for the 1978 GMC P15 is $304.19. Keep in mind the variety of part types within our Performance and Racing Product category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Performance and Racing Products for other GMC P15 model years?
What are the cheapest Performance and Racing Products for my 1978 GMC P15?
The cheapest 1978 GMC P15 Performance and Racing Products we carry in stock are:
- Dorman – Help Radiator Drain Cocks, 61132 (89015358) – $7.99
- K&N Premium Oil Filter: Ideal for Synthetic & Conventional Oil, Protects Your Engine, HP-3002 (6120022) – $18.99
- FEL-PRO Performance PERFORMANCE VALVE COVER GASKET SET, 1640 (19781133) – $22.99
- FEL-PRO Performance PERFORMANCE OIL PAN GASKET SET, 1819 (19781547) – $31.49
- FEL-PRO Performance PERFORMANCE EXHAUST MANIFOLD GASKET SET, 1448 (19781863) – $35.99
What are the top-rated Performance and Racing Products that fit the 1978 GMC P15?
Out of 65 reviews by customers, our 1978 GMC P15 Performance and Racing Products have an average customer rating of . These are some of the highest-rated Performance and Racing Product types for the 1978 GMC P15 and their top-rated products:
- Performance Oil Filters
- Performance Shifters
- Performance Radiators
What types of Performance and Racing Products do you sell for my 1978 GMC P15?
As of 8/2/26, these are some of the most in-demand types of Performance and Racing Products for a 1978 GMC P15:
Can I get help with 1978 GMC P15 Performance and Racing Product orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Performance and Racing Products and more.
What is your return policy for GMC P15 Performance and Racing Products?
Advance Auto Parts keeps returns simple. For new GMC P15 Performance and Racing Products and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
