1987 GMC Jimmy Performance Engines

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

Finish your custom engine job with these show quality grade 5 chromed 12-point bolts, includes AN washers which have no exposed shoulder for a professional appearance. Includes (12) 3/8-16 x 1 inch bolts with (12) 3/8 inch AN washers.

Product Features:

• Chrome plated
• Grade 8
• 12-point head
• AN washers with no exposed shoulder for a professional appearance

Mr. Gasket Performance Intake Gaskets are manufactured from cellulose/nitrile composition gasket material. They provide excellent sealing and durability. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track.

Product Features:

• Made From Cellulose/nitrile Composition Material
• Provides Excellent Sealing And Durability
• Can Be Trimmed If Necessary For Modified Port App

Springs made of highest quality spring wire. Springs precision wound to close tolerances. 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

Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts.

Product Features:

• Excellent performance in street carbureted applications.
• More vacuum allows an increase in duration for improved performance and assists power brakes.
• Quicker opening lobe profiles deliver increased responsiveness and more area under the lift curve.
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

These High Energy Die Cast Aluminum Roller Rocker Arms for Chevy V8 396-454 applications are perfect for street and moderate race use. With a 7/16″ stud diameter and 1.7 ratio, the die cast, larger-than-stock body of the rocker arms is made of aluminum for superior strength with light overall weight. High Energy Die Cast Aluminum Roller Rocker Arms from COMP Cams are an affordable option that feature a die cast, aluminum body with a needle bearing fulcrum and roller tip. Designed to be stiffer and more durable, these cost effective rocker arms are capable of providing added valve lift while withstanding the rigors of a performance application. Their specially engineered fulcrum and roller tip create far less friction than sliding factory models to lower oil temperatures, thus improving both response and horsepower. Snap rings are used to hold the trunion and bearings locked in place.

Product Features:

• Cost effective aluminum construction provides superior strength to weight ratio
• Needle bearing fulcrum and roller tip reduce friction and lower oil temperatures for improved response and horsepower
• Durable design increases valve lift while withstanding the rigors of moderate race use
• Die-formed aluminum body is larger than stock, and may require modifications to stock valve covers for clearance.

This Mr. Gasket Water Pump Bolt Set includes chrome plated grade 5 hex head fasteners and AN style washers to install the water pump on your small block Chevrolet with the short style water pump. AN washers have no exposed shoulder which offers a professional appearance. Includes one 3/8 inch-16 x 2-1/2 bolt, three 3/8 inch-16 x 1-3/4 inch bolts, and four 3/8 inch AN washers.

Product Features:

• Chrome plated
• Grade 5
• AN washers with no exposed shoulder for a professional appearance

Tool Steel 10 Degree Retainer Set Of 16 For All Valves With 1.250" O.D. Springs

Raised 1 Piece Guide Plate Set Chevrolet Big Block With 3/8" Pushrod 7/16" Stud

Edelbrock part #9646 Pushrods are designed for small-block Chevy V-8 engine applications. These one-piece pushrods are manufactured from high quality 4130 Chromoly steel tubing that has been surface hardened for maximum durability. They have precise forme

Product Features:

• 7.25 in. Length
• 0.312 in. Diameter
• 4130 Chromoly Steel Material
• Black Oxide Finish
• Made In The USA

This is a high quality bolt set that is made of grade 8 steel and will meet your requirements for a quality bolt set, this set will work on original equipment, high performance street, drag or circle track applications.

Product Features:

• Has A Zinc Dichromate Finish
• Made Of High Quality Grade 8 Steel
• Has A Tall Hex Head To Prevent Wrench Slipping Off
• Extra Thick Parallel Ground Washer
• Washer Provides More Accurate And Uniform Torque

Reduced Travel OE-Style Hydraulic Roller Lifter for ’87+ SBC, LT/LS and V6

For 3500 to 7500 PRM. Use where low-end torque is not a prime factor. Great for engines with slightly modified heads. HEI ignition will not clear manifold. Street machines, street rods, pro-street and marine.

Product Features:

• For 3500 to 7500 RPM
• Use Where Low-End Torque is Not a Prime Factor
• Great For Engines w/Slightly Modified Heads
• Top Has Vacuum Outlet for Power Brakes
• Will Accept Forward and Sideways Mounted Carbs
• Carburetor Center-to-Center Dimensions 8.875 in
• HEI Ignition Will Not Clear Manifold
• For Street Mach.; Street Rods; Pro-Street; Marine

VALVE SEALS, O-RING 11/32″ 1 ST

Mr. Gasket Performance Valve Cover Gaskets are high-density cork/rubber blend gaskets that use evenly sized cork particles distributed evenly throughout the rubber binder. The result is a compressible valve cover gasket without leak paths. These gaskets create a positive seal by controlled swelling of the gasket material when exposed to hot engine oil. Provides excellent flange sealing and durability. For original equipment replacement, high performance street, drag race and oval track use. These gaskets are .312 inch thick. That’s substantially thicker than stock which can allow for additional valve train clearance. Fits Chevrolet 396,402,427,454,502 Gen IV, Gen V and Gen VI Big Block.

Product Features:

• This Gasket Has A Cork Rubber Blend
• Provides Excellent Sealing And Durability
• Extra Thick For The Hard To Seal Applications

Mr. Gasket cam locking plates feature a steel retainer plate designed to secure the cam gear bolts from coming loose and backing out, preventing costly engine damage. Retainer plate fits under bolt heads allowing tabs to be bent against hex head flats creating a secure positive lock.

Product Features:

• Black oxide finished steel
• Includes (3) grade 5 bolts & locking plate
• Fits Chevrolet Small and Big Block without OE roller cam
• Tabs bend up around bolt head to secure

Mr. Gasket Steel Shim Cylinder Head Gaskets are for high performance street machines, drag racing and oval track racing. With today’s extreme compression ratios you need stronger more durable gaskets. Mr. Gasket steel shim gaskets are made from .020 inch steel shim stock which is thinner than most composite gaskets increasing engine compression. Stress formed embossments will seal the extreme cylinder pressure.

Product Features:

• Manufactured from .020″ steel shim stock.
• Thinner than composition head gaskets – increases engine compression.
• Stress formed embossments seal extreme cylinder pressures.
• For high performance street, drag race and oval track use.

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

Product Features:

• PROPRIETARY COATING – Nonstick anti-friction coating seals small surface imperfections
• NO RETORQUE DESIGN – Steel core helps eliminate the need for retorquing head bolts
• SUPERIOR SEAL – Precise embossed Printoseal sealing beads at all vital areas to eliminate leak paths
• STRONG AND DURABLE – Features graphite or reinforced fiber facing material and steel armor for strength and durability
• DESIGNED FOR IMPERFECT SEALING SURFACES – Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces

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
• 50 State Street Legal

COMP Cams Hi-Tech Roller Race Timing Sets include cast iron camshafts gears, induction hardened billet steel crank sprockets, and pre-stretched, heat-treated double roller chains with heavy-duty large pin design. They feature 3 keyway crank sprockets for

Product Features:

• Cast iron camshaft gear and induction hardened billet steel crank sprocket
• Pre-stretched, heat-treated true double roller chain with heavy-duty large pin design; chain available separately
• Ideal for all street performance and race applications
• Features 3 keyway crank sprocket for 4-degree incremental adjustability, 4-degree maximum advance/retard
• Dynamically balanced and quality checked for run-out tolerances

HYDRAULIC – Xtreme Energy: Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall.

Product Features:

• HYDRAULIC – Xtreme Energy: Good for street machines, slightly rough idle, stock converter will work but best with 1800+ stall.
• 268/280 Advertised Duration, 224/230 Duration @ .050″, .515″/.520″ Lift, 110 Lobe Separation
• Valve spring upgrade required
• Best performance with aftermarket intake manifolds, headers, lower gear ratios etc.

HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.

Product Features:

• HYDRAULIC – Magnum: Great for street machines. Needs 2200+ stall, headers and gears. Rough idle.
• 280/280 Advertised Duration, 230/230 Duration @ .050″, .480″/.480″ Lift, 110 Lobe Separation
• Valve spring upgrade required

Manufactured from cellulose and nitrile composition gasket material. A black latex rubber coating is applied to outside of gasket to help seal minor oil pan rail irregularities and eliminate the possibility of oil leakage. Provides excellent sealing and durability. Complete with molded rubber front/rear oil pan seals where applicable. For OE replacement, high performance street, drag race and oval track.

Product Features:

• Made of high temp silicone or nitrile blend rubber
• Torque limiters to prevent over tightening
• One piece molded rubber
• Fits left and right hand dipsticks

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

Product Features:

• Rigid core, molded silicone rubber gaskets utilize the one-piece molded rubber technology for a perfect fit, ease of installation and include compression limiters to prevent overtightening.
• Not intended for use in emission controlled vehicles.

HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) Application: HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) A higher than stock stall speed as delivered by the Holeshot c

Product Features:

• Furnace Brazed Impeller
• Steel Alloy Pump Drive Tube
• Heavy Duty Needle Bearing
• Between Stator and Turbine
• Furnace Brazed Turbine

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

Product Features:

• New Precision Pump Drive Tube
• Pressure Tested
• Fully Balanced
• Needle Thrust Bearing
• New Thrust Washer

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

Product Features:

• Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longivity.
• Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
• Not intended for use in emission controlled vehicles.

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.

Product Features:

• Fluoroelastomer compound combines optimum resistance to heat, oils and abrasion for longevity.
• Optimizes performance under high crankcase vacuum conditions, elevated temperatures and high RPM levels.
• Not intended for use in emission controlled vehicles.
• Not intended for use in emission controlled vehicles.