GMC G25 Performance and Racing Products

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Blue Stripe performance cork-rubber gaskets use cork particles evenly distributed throughout a rubber binder resulting in a compressible gasket without leak paths.
• Not intended for use in emission controlled vehicles.

This Mr. Gasket Rear Main Seal is made from silicone to allow the seal to handle extreme engine oil temperature. It also provides for an upgrade for that leaky rope style seal and is a direct replacement for a rubber main seal. It’s also injection molded for a precise fit.

Product Features:

• Repairs That Leaky Rear Main Sail
• Silicone Rubber to Withstand Extreme Engine Oil Temperatures
• Upgrade for Rope Seal Equipped Cars or Direct Replacement for Rubber Main Seal
• Injection Molded for Precise Fit

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.

Product Features:

• Indicates coolant temperature
• Helps prevent coolant injuries
• Fahrenheit and centigrade readings
• Color-coded temperature ranges
• Integrated coolant reclamation valve
• Improves under-hood appearance
• Chromed crown with a colored trim ring

The Edelbrock #4480 Signature Series Valve Covers are designed for Chevrolet 396-502 V8 ’65 & later applications. Engineered for function and styled for great looks, Signature Series valve covers have stock-style breather baffles that prevent oil passage to the PCV valve. These quality valve covers accept all emissions equipment, including PCV valve holes. Rubber grommets for the breather and PCV valve holes are included. Matching breathers sold separately.

Product Features:

• Big Block Chevy 396-502 1965 & Up
• Short
• Chrome Steel
• Set Of Two
• Rubber Grommets For Breather

Put an end to high maintenance point ignition systems by installing a proven Mallory Unilite ignition conversion kit. Features at a glance, improves performance and fuel efficiency, easy to install with simple hand tools, reduced maintenance and is available for all popular 12-volt negative ground domestic cars and trucks.

Product Features:

• Easy Installation
• Improved Fuel Economy
• Reduced Maintenance
• Accurate Timing
• Improved Performance
• Provides A Simple Conversion
• No Moving Parts To Wear Out

Fel-Pro Performance Gaskets deliver reliable sealing under grueling racing conditions

Product Features:

• Fel-Pro Performance head gaskets accommodate the high cylinder pressures and cylinder head movement associated with performance engines.
• Inserted within a stainless steel armor surrounding each cylinder, wire ring design provides highly concentrated sealing around the combustion chamber.
• Raises combustion sealing force to roughly three times that of standard head gaskets.
• Steel wire rings for the greatest combustion seal strength.
• Not intended for use in emission controlled vehicles.

Complete kit includes retainers and locks. Springs made of highest quality spring wire. Springs precision wound to close tolerances. Includes superior quality steel retainers. Includes 7 degree heat-treated valve stem locks. Retainers and locks black oxide coated. Non-Rotator style: Dyno tested and street proven. Great match to Edelbrock camshaft kit.

Product Features:

• For Use With Cast Iron Heads
• Springs Made of Highest Quality Spring Wire
• Springs Precision Wound To Close Tolerances
• Use with Original Equipment Heads Only

Ultra-Seal intake manifold gaskets are manufactured from cellulose/nitrile composition gasket material. Provides excellent sealing and durability. Incorporates Silicone beading around each intake and water outlet port to provide additional sealing strength on both sides of each gasket. No gasket sealer required. For OE replacement, high performance street, drag race and oval track use. Includes manifold end seals and distributor gasket.

Product Features:

• Manufactured from cellulose/nitrile composition gasket material
• Provides excellent sealing and durability
• Silicone beading on both sides of each gasket
• Complete with manifold end seals and distributor gasket
• For OE replacement, high performance street, drag race and oval track use
• Creates Tight Leak proof Seal

Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM. The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion. Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.

Product Features:

• Opens At 180 Degrees
• Designed to Resist Large Variations of Coolant Pressure at High RPM
• Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
• For High Performance Street, Drag Race, and Oval Track
• Copper & Brass Construction – Resists Corrosion
• High Flow

This chrome plated breather, embossed with a Mr. Gasket logo, is perfect for race car vacuum balance systems and OEM use. It fits any 1 1/4 inch diameter hole. It has metal baffle/foam element with 1 inch outer diameter neck and 5/8 inch outer diameter breather tube.

Product Features:

• Internally battled
• High-porosity filter
• Ideal for high performance
• Includes rubber grommet

Product Features:

• Case-Hardened Tubing
• Surface Hardening
• Welded Ends
• 0.3125 in. Diameter
• Use with or without Hardened Steel Guideplates

Chevy produced a number of inline-6 engines over the years, some dinky powerless wonders and others that can be made to put out some pretty impressive torque and power numbers. For those that dare to be different or want to stick with original power plants, MSD has a distributor for you. While you may not see many 194 Cu. In. engines being built, the 250 and 292 are showing up more and more. This distributor fits them all, including the 230. Like all MSD Pro-Billet distributor, this housing is crafted from billet aluminum and MSD bolts in a non-magnetic pickup to fire the mandatory ignition control. There’s a vacuum advance to assist with economy and the adjustable mechanical advance makes it easy to tune in a specific curve. Pro-Billet inline-6, 194, 230, 250, 292 – PN 8515 note: must be used with an MSD 6, 7 or 8-series ignition.

Product Features:

• Designed For Street/Performance Use w/Mech or Vacuum Advance
• Will not fit 235 and 261 engines
• Must Be Used w/An MSD Ignition Control
• Supplied w/Socket Style Distributor Cap And Rotor
• O-ring seals can be installed for oil press. control (Mods only)
• Special oil tract improves lubrication to the dist./cam gear
• Nylon pads ensure smooth operation of the advance weights
• Advance weight pins are staked and tig welded to the plate
• Mech. advance assem. can be locked out for crank trigger systems
• Advance plate and weights are fine blanked from chrome moly steel
• QPQ coated for friction reduction
• QPQ coated polished steel shaft; guided by sealed ball bearings

Spectre’s Chevrolet late model water neck offers the normal angled water neck and a 1/2 inch NPT threaded hole for a by-pass hose. This water neck has a chrome plated finish for a lasting look great and includes the bolts.

Product Features:

• Fits Chevy engines
• Includes a 1/2 inch NPT threaded hole for by-pass hose
• Includes bolts
• Chrome plated
• Easy to install
• O-ring/gasket not included

For a long time, racers have known that one of the best things to do to an engine to improve its performance is to stabilize the ignition timing. The MSD flying magnet crank trigger system does exactly that by using magnets embedded in an aluminum wheel. The MSD flying magnet crank trigger uses four magnets secured in the aluminum trigger wheel that pass by a stationary non-magnetic pick-up to trigger the ignition. This flying magnet design produces accurate trigger signals and the non-magnetic pick-up cannot be false triggered. Each flying magnet crank trigger includes a two-piece mounting bracket for the non-magnetic pick-up that in most cases will work on either the passenger side or driver’s side of the engine (the SB Chrysler and SB Ford brackets mount on only one side). The adjustable bracket provides a wide range of timing adjustment and spacers are included. These systems will trigger MSD 6, 7, 8 and 10 series ignitions and all MSD timing accessories.

Product Features:

• 6.25 in. Diameter
• Absolutely the most accurate way to trigger the ignition.
• The non-magnetic pickup cannot be false triggered.
• Powerful magnets are embedded in a billet aluminum trigger wheel.

Constructed of thicker than stock steel plate to withstand the stress of high stall speed converters and high RPM engine. Zinc dichromate plated to resist rust and corrosion. Meets SFI specification 29.1 for racing.

Product Features:

• Thicker Than Stock Steel Plate
• Ring Gear Securely Welded
• Dual Bolt Patterns
• Zinc-Dichromate Plated To Resist Corrosion
• Withstands High Torque and RPM

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series’ early i

Product Features:

• Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note.
• Best with aftermarket converters and more rear gear.
• Three unique cam designs for each application that deliver excellent horsepower gains and broad torque curve; perfect choice for muscle cars and street rods.

These kits include all of the necessary components to rebuild your automatic transmission. OEM style gaskets included. Kits do not include overhaul instructions – please refer to factory shop manual for proper assembly procedures.

Product Features:

• Complete High Perf. Or Racing Trans. Overhaul
• Includes Only OEM Valvebody Gaskets
• Instructions Not Included

Product Features:

• Solid Bushing Chain Resists Stretching
• For Use with Stock or Edelbrock Camshafts
• Stressproof Steel Crank Gears
• 3 Keyway Setting Points To Ensure Accurate Timing
• True Bearing Surface Rolls with the Sprockets

Replacement rotor for Chevrolet HEI style distributors.

Product Features:

• For HEI distributors
• Resist carbon tracking
• Low resistance brass
• Max voltage transfer
• Molded from insulated material

Product Features:

• Use W/ Valve Springs Part #5703, 5794
• Set of 16
• 1.50 in. Outside Diameter
• Steel Material
• Black Oxide Finish

The cap of any ignition system must be considered maintenance items. Just as you change the oil and filter of your car, you should always replace the cap. To make things easy, we now offer these caps as replacement kits.

Product Features:

• Stock GM HEI replacement distributor cap
• Red

Replace your stock black engine pulleys with a pair of chrome plated steel pulleys from Mr. Gasket. The pulleys are highly polished then chrome plated. Designed for small and big block Chevrolet engines with 5/8 inch water pump shaft.

Product Features:

• Highly Polished For Lasting Beauty
• Double Groove
• w/Short Water Pump

Engineered for faster rise time, longer spark duration and increased performance. Unique design with premium grade wire, special low resistance, high turns ratio windings. Produces higher spark energy with breakerless electronic ignition systems. For points application the supplied 0.85 ohm ballast resistor must be used in conjunction with the vehicle original ballast resistor, if so equipped. Oversized molded case with integral cooling fins and high capacity oil filled construction provide high thermal conductivity ensuring cool operation and long life. Extra tall tan Alkyd tower and integral voltage dam eliminate “flashover” to primary terminals. Comes complete with mounting hardware and 0.85 ohm ballast resistor. Effective up to 6,500 RPM.

Product Features:

• Oil Filled For Better Cooling
• Optimized Low Resistance
• Silicon Magnetic Steel E-Core
• Higher Energy/Voltage Outputs
• Quicker Starts
• Improved Idle Quality
• Resists Shock And Vibration
• Resists Corrosion

The Edelbrock #604919 Performer Bare High Compression Cylinder Heads are designed for Big-Block Chevy Oval Port V8 applications. These Edelbrock Performer Series Cylinder heads are 50-state street legal and provide outstanding performance from Idle-5,500

Product Features:

• High Compression
• 100cc Combustion Chamber Volume
• 290cc Intake/110cc Exhaust Runner Volume
• 2.19 in. Intake/1.88 in. Exhaust Valve Diameter
• 0.562 in. Deck Thickness