1956 GMC PM250 Car Parts & Accessories

This replacement window regulator is precision-engineered and extensively tested to match the exact fit, function and performance of the stock window regulator on specific vehicle years, makes and models. Every Dorman part is backed by over 100 years of experience, along with a dedicated team of product experts, automotive engineers and technical support specialists based in the United States. We are passionate about giving repair professionals and vehicle owners greater freedom to fix cars and trucks, which is why we have more than 100,000 parts in our catalog today and promise to never stop driving new solutions.

Product Features:

• Trustworthy replacement – engineered and tested to match the fit, function and performance of the original window regulator on specified vehicles
• Quality assured – extensively tested by cycling thousands of times in an actual vehicle door to ensure a long, trouble-free service life
• Reliable design – engineered in the USA and backed by long history of automotive aftermarket experience
• Easy installation – reverse-engineered to match the original equipment shape and dimensions to provide a direct, seamless fit

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

Value-priced seal meets all cataloged application requirements.

Product Features:

• Brand may vary by location

Product Features:

• Imperial mounting kit system
• For installation of transmission coolers and electric fans
• Provides quick, effective installation of Imperial products
• Contains nylon mounting rods, foam pads and locking buttons
• Atermarket electric fan and cooler mounting rods
• Made with the highest quality materials
• Quality machined for durability
• Removable buttons for relocation

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

Provides all necessary components for the proper reinstallation of an Imperial transmission oil cooler.

Product Features:

• Transmission cooler reinstallation kit
• Contains part numbers 248001, 226201, 240250 and 4 hose clamps
• Provides all hardware for reinstallation of Imperial transmission coolers
• Contains nylon mounting rods, foam pads, locking buttons, hose and fitting

Value-priced seal meets all cataloged application requirements.

Product Features:

• Brand may vary by location

Value-priced seal meets all cataloged application requirements.

Product Features:

• Brand may vary by location

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Unsurpassed quality you can trust
• Validated for fit, form and function
• Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Controlled heat treating process for lasting performance and extended bearing life
• Industry leading coverage
• Professional technicians know they can depend on National

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Includes all parts needed to complete the repair

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Includes all parts needed to complete the repair

TrqCnv

Torque Converter

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• High radial load capacity makes them suitable for high speed applications
• Industry leading coverage
• Professional technicians know they can depend on National

National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Designed to repair damaged, grooved or worn shafts
• Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
• Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
• Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
• Easy to install with removable flange and installation tool
• Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Controlled heat treating process for lasting performance and extended bearing life
• Industry leading coverage
• Professional technicians know they can depend on National

Flywheel and flex plate bolts play an important role in the performance and safety of race cars and street machines alike. That is why the fastener experts at ARP have developed special bolts that are far superior to OEM hardware. ARP offers two styles of flywheel/flex plate bolts: High Performance and Pro Series. They are both forged from aerospace alloy and heat treated prior to thread rolling and machining. Both feature an exclusive, flat, 12 point head design and larger than stock shank diameter for increased strength and improved flywheel register. The popular High Performance series is rated at 180,000 PSI, and the premium grade Pro Series, originally developed for NASCAR competition, has a 200,000 PSI rating. Complete with washers and nuts where applicable.

Product Features:

• Forged From Aerospace Alloy And Heat Treated Prior To Thread Rolling And Machining
• Feature An Exclusive, Flat, 12 Point Head Design And Larger Than Stock Shank Diameter
• Flanged Nut
• Increased Strength And Improved Flywheel Register
• Chevy 90░ V6 & 265-454 With 2-pc Rear Seal, Ford 289-460
• 0.68″ Underhead Length
• 200,000 PSI

Flywheel and flex plate bolts play an important role in the performance and safety of race cars and street machines alike. That is why the fastener experts at ARP have developed special bolts that are far superior to OEM hardware. ARP offers two styles of flywheel/flex plate bolts: High Performance and Pro Series. They are both forged from aerospace alloy and heat treated prior to thread rolling and machining. Both feature an exclusive, flat, 12 point head design and larger than stock shank diameter for increased strength and improved flywheel register. The popular High Performance series is rated at 180,000 PSI, and the premium grade Pro Series, originally developed for NASCAR competition, has a 200,000 PSI rating. Complete with washers and nuts where applicable.

Product Features:

• Forged From Aerospace Alloy And Heat Treated Prior To Thread Rolling And Machining
• Feature An Exclusive, Flat, 12 Point Head Design And Larger Than Stock Shank Diameter
• Flanged Nut
• Increased Strength And Improved Flywheel Register
• Chevy 90░ V6 & 305-502 With 1-pc Rear Seal
• 0.725″ Underhead Length
• 200,000 PSI

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel and bronze for outstanding durability and performance
• Oil impregnated for extended life
• Industry leading coverage
• Professional technicians know they can depend on National

New Perfection Clutch Sets include the following: New OEM-style cover assembly, computer-tested for clamp load, plate lift, and finger height; new OEM-style clutch disc with facings built to exceed OEM specifications; new clutch release bearing meeting or exceeding OEM specifications (where supplied); new pilot bearing/bushing (where used); alignment tool for the perfect clutch installation (where available); hydraulic line disconnect tool (where used).

Product Features:

• New clutch disc with non-asbestos facings built to exceed OEM specifications for durability, safety, and positive engagement.
• Cover assembly is computer tested for clamp load, plate lift and finger height to ensure uniform and smooth operation
• Alignment tool included where available to ensure professional installation
• Where required, includes new pilot bearing or bushing to complete the job

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Design improvements include extended life and quiet operation
• Industry leading coverage
• Professional technicians know they can depend on National

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Product Features:

• Premium bearing design matches OEM specifications
• Precision manufactured using premium-grade steel for outstanding durability and performance
• Design improvements include extended life and quiet operation
• Industry leading coverage
• Professional technicians know they can depend on National

LuK: The brand professionals trust! For over thirty years, automotive aftermarket technicians have staked their reputation – and their customers’ satisfaction – on LuK RepSet(R) clutch components. Each set contains everything you need to get the job done right: new clutch, disc, release bearing, pilot bearing (where required), spline tool and lubricant. As an original-equipment supplier, LuK develops the performance specifications for individual vehicle applications. LuK offers the highest in-house manufactured content of any supplier in the industry.

Product Features:

• Application matched for OE form, fit, and function
• Manufactured with high-quality materials, using cutting edge technology and processes
• Stock photo – Actual parts and materials may vary.

Clutches

Clutches

Flywheels

High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.

Product Features:

• Designed to OE standards for ease of installation

CARQUEST premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

Sealed Power« parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

• Unsurpassed quality that you can trust
• Uses leading edge materials
• State-of-the-art manufacturing
• Exacting tolerances
• Meets or exceeds OEM specifications

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
• ENGINEERED TO PERFORM — Proprietary cork-rubber formulation
• SUPERIOR SEAL — Highly conformable to accommodate for the imperfect sealing surfaces
• EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted
• REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Made of stainless steel
• Designed to prevent timing cover seal leaks
• Takes up gaps caused by worn-out harmonic balancer shafts

Sealed Power® parts provide innovative designs, use leading edge materials and utilize ISO & QS certified manufacturing in order to deliver top quality products that meet the rigorous demands of today’s modern engines.

Product Features:

• Unsurpassed quality that you can trust
• Uses leading edge materials
• State-of-the-art manufacturing
• Exacting tolerances
• Meets or exceeds OEM specifications

Product Features:

• Out-of-the-Box Bolt-On Performance
• With Straight Plugs
• 70cc Combustion Chambers Improve Performance
• Retain Stock Compression Ratio

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Low swell in hydrocarbon fluids
• Design type: spring loaded; multi-lip
• Provides good low temperature capability
• Temperature range: -40°F to 225°F; -40°C to 107°C
• Delivers quality and reliable performance for every type of repair

Value-priced seal meets all cataloged application requirements.

Product Features:

• Brand may vary by location

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• RIGHT TYPE — Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
• QUALITY MATERIALS — Each valve stem seal features materials based on the specific application for your vehicle repair
• ENGINEERING EXPERTISE — Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
• INSTALLATION AID — Installation tool included to protect inner lip of seal from damage during seal installation
• COVERAGE — Available for domestic and foreign nameplate vehicles

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Full Sets contain all the gaskets and seals necessary for a complete engine overhaul
• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function
• Validated for fit, form, and function

Dress up your engine with a chrome plated dipstick and tube. Similar to OEM units, only simple hand tools are required for installation.

Product Features:

• Fits Chevy small block 1965-79 283-400 cid
• Block mounted
• Chrome plated steel

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.

Product Features:

• Includes timing cover seal and harmonic balancer sleeve
• Solves the oil leaking around timing cover seal
• Made of stainless steel
• Takes up gaps caused by worn-out harmonic balancer shafts

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Engineered for the sealing repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

you have probably heard many a horror story about someone losing an engine when the oil pump fell off into the pan because of a broken bolt. Well, you can put your mind at ease when using ARP premium grade oil pump bolt and stud kits. You have a choice of black oxide finished 8740 chrome moly steel or low maintenance stainless steel. Both are nominally rated at 170,000 PSI tensile strength to provide you with plenty of clamping force. Moreover, take your pick between conventional hex style or 12 point designs. This is insurance that no conscientious engine builder should be without The studs come with flat washers and nuts, while the Ford bolt kit has flat washers only. These inexpensive fasteners can literally save your engine.

Product Features:

• Nominally Rated At 170,000 PSI Tensile Strength To Provide You With Plenty Of Clamping Force
• Premium Grade Oil Pump Stud
• The Studs Come With Flat Washers And Nuts
• Black Oxide Finished 8740
• Hi-Volume
• 3.125″

Sealed Power« Vintage components provide coverage for applications over 35 years old, restoring classics with like new performance. Leading edge materials, ISO & QS certified manufacturing ensures performance and longevity for treasured engine rebuilds.

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

• Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
• Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
• Durable construction – this part is made from quality materials to ensure reliable performance and long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Timing cover set includes gaskets and seals necessary for timing chain/belt replacement job
• Application specific design to ensure a perfect fit
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust
• Validated for fit, form, and function

A new Melling oil pump shaft is recommended to complete every new oil pump install. Melling offers a complete line of high quality shafts for domestic and import pump applications. A new oil pump shaft is necessary due to possible metal fatigue, cracking

Product Features:

• Manufactured from high quality materials for consistent durable wear
• Precision engineered for optimum fit and function
• Designed for long-life and worry-free performance
• Meets or exceeds original equipment specifications

All Pro Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and are rated at 200,000 PSI tensile strength. ARP Pro Series head bolt kits are application specific, designed for use with typically competition only components. These fasteners deliver superior strength and meet the ARP zero defect zero failure quality standard. Hardened and parallel ground washers are included with each kit to ensure even load distribution and accurate torque readings. All Pro Series head bolts have a reduced wrenching hex or 12 point head and wide area flange to eliminate the need for valve train removal for cylinder head retorquing and permits the use of larger diameter valve springs. Most applications have undercut short bolts that can help eliminate head gasket failures through providing more stretch to compensate for the additional compression of gaskets.

Product Features:

• Pro Series Bolts Are Cold Forged To Ensure Molecular Integrity, Heat Treated Prior To Thread Rolling And Machining
• Nominally Rated At 200,000 PSI Tensile Strength
• These Fasteners Deliver Superior Strength And Meet The ARP Zero Defect Zero Failure Quality Standard
• Bolts Have A Reduced Wrenching Hex Or 12 Point Head And Wide Area Flange To Eliminate The Need For Valve Train Removal For Cylinder Head Retorquing And Permits The Use Of Larger Diameter Valve Springs

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in, you knew from the beginning that the rocker geometry was going to be inconsistent all over the place. ARP rocker studs are concentric within 0.005 T.I.R. thread pitch to thread pitch. They run in straight and true. Lengths are exact designed to provide positive seating every time. An extra large radius base offers greater resistance to flex. Available in both High Performance and Pro Series models. To be used with ARP patented Perma Loc(TM) adjusters.

Product Features:

• Made Of 8740 Chrome Moly Forgings
• Heat Treated To 180,000 PSI
• Excellent For Elapsed Time Bracket Racing, Limited Rule Oval Track Competition And Street Use
• Lengths Are Exact Designed To Provide Positive Seating Every Time
• Set of 16
• .800″ Adjuster Thread Length
• 3/8-24 Shank Diameter and Thread
• 3/8″ Typical Small Block Application

As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in position, ARP has developed these ultra strong 200,000 PSI bolts that let you exert maximum clamping force. Special features include 1/4 Inch thick, wide area washer and an extra tall 12 point head that accepts a deep socket and eliminates the worry of stripping the head.

Product Features:

• Ultra Strong Bolt Rated At 200,000 PSI
• 1/4 Inch Thick, Wide Area Washer And An Extra Tall 12 Point Head That Accepts A Deep Socket And Eliminates The Worry Of Stripping The Head
• Delivers ARP Quality And Reliability
• Made In USA
• 12-Point Head
• Sold Individually
• 200,000 PSI
• 2.470″ Underhead Length

MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:

• All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
• MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
• MAHLE gaskets is the leader in Domestic, Asian and European applications
• The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• RIGHT TYPE — Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals
• QUALITY MATERIALS — Each valve stem seal features materials based on the specific application for your vehicle repair
• ENGINEERING EXPERTISE — Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing
• INSTALLATION AID — Installation tool included to protect inner lip of seal from damage during seal installation
• COVERAGE — Available for domestic and foreign nameplate vehicles

Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:

• Meets or exceeds all original equipment specifications
• Application specific design to ensure a perfect fit
• Premium quality parts
• Engineered and manufactured specifically for the repair environment
• Unsurpassed quality you can trust

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:

• Direct replacement – this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
• Ideal solution – this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
• Durable construction – this part is made from quality materials to ensure reliable performance and long service life
• Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience

High Performance head bolts are available with a reduced wrenching hex or 12 point and wide area flanged head that eliminates the need for valve train removal to facilitate cylinder head retorquing. All High Performance Series bolts are 180,000 PSI (which is 15 Percent stronger than Grade 8) and kits come complete with hardened parallel ground washers.

Product Features:

• High Performance Head Bolts Are Available With A Reduced Wrenching Hex Or 12 Point
• Wide Area Flanged Head That Eliminates The Need For Valve Train Removal To Facilitate Cylinder Head Retorquing
• Rated At 180,000 PSI Tensile Strength
• High Performance Head Bolts Are Stronger

Many an engine has been destroyed as a result of oil pump driveshaft failure. To cure this all too common problem, ARP has designed an extra heavy duty shaft that will provide you with the necessary reliability. The shaft is made from heat treated, premium grade aerospace chrome moly steel. Moreover, the shaft diameter is a larger diameter than the OEM unit. These features combine to enable ARP shafts to handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants.

Product Features:

• Extra Heavy Duty Shaft That Will Provide The Necessary Reliability
• Enable Shafts To Handle The Added Torque Requirements Of Increased Capacity Oil Pumps Or Heavy Viscosity Lubricants
• Made From Premium Grade 8740 And Heat Treated To 190,000 Psi
• Alignment Sleeve Is Roll Formed Onto The Shaft (Not Welded Or Pinned), Enabling The Sleeve To Float, Allowing For Slight Misalignment
• Black Oxide

ARP timing cover bolts are available in both polished stainless steel or black oxide finish chrome moly. You also can choose between standard hex head bolts or compact 12 point fasteners. Also available as part of ARP complete engine and accessory kits. Studs are preferred by many pro engine builders because they eliminate the chance of pinching gaskets and contribute to easier engine assembly. You will note that ARP studs feature a special bullet nose to guide the nut accurately into place. Available in black oxide finish 8740 chrome moly or polished stainless steel with hex or 12 point nuts. Alternators that come loose are a pain, so That is why ARP came up with these super tough bolts (your choice of chrome moly steel or polished stainless (ARP 300) both rated 170,000 PSI). The stainless has the added advantage of being rust and corrosion resistant.

Product Features:

• Made From Black Oxide Finished 8740 Chrome Moly
• Nominally Rated At 170,000 Psi Tensile Strength
• Super Tough Bolts
• Compact 12 Point Fasteners