from

$33.99

COMP Cams offers a complete line of valve stem seals, from the umbrella seals to the positive-stop Teflon seal. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The umbrella seal is normally used when a larger-than-stock diameter spring is used, in the case of a double spring, the positive-stop Teflon seal is used. The umbrella seals require no machining, but with the Teflon seal it is necessary to disassemble the heads and machine the top of the guide with a special .530 diameter cutter. Whenever you are planning an engine overhaul or a cam change, don’t forget the valve seals.

Product Features:

Work with .530″ guides and 3/8″ valve stem diameter
Valve stem oil seals keep unwanted oil from entering the combustion chamber
Several different types of valve seals are offered

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$30.99

Product Features:

5/16 in. Thick
Conforms to warped flanges, giving them better sealing capabilities
Graphite-impregnated facing and steel expanded metal core
Does not deteriorate or crack under excessive heat and pressure
Sold as a pair

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$31.99

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
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

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$448.99

Maximum cooling for street and racing engines. Internal passages are balanced for maximum flow. Impeller is larger than others for maximum pressure. Impeller vanes dramatically increase flow rates. Equal distribution to both sides of block. Only flows in

Product Features:

Maximum Cooling for Street and Racing Engines
Internal Passages Are Balanced for Maximum Flow
Impeller is Larger than Others For Max Pressure
Impeller Vanes Dramatically Increase Flow Rates
Equal Distribution to Both Sides of Block
Only Flows in One-Direction for Optimum Efficiency

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$43.99

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

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$36.99

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

Product Features:

DESIGNED FOR IMPERFECT SEALING SURFACES — Engineered and manufactured specifically for the repair environment to help seal imperfect sealing surfaces
SEALING TECHNOLOGIES — Exclusive sealing innovations and technologies with proprietary materials and unique design features to ensure a superior seal for your repair
ENGINEERING EXPERTISE — Parts are designed, reviewed, validated and approved by Fel-Pro engineers through rigorous research and development
REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
EVERY PART FOR THE REPAIR — Fel-Pro gasket sets include every part needed for the repair unless otherwise noted

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$497.99

Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM. Dual-plane high-rise intake. Accepts early-style waterneck only. Non-EGR. Mopar 340-360. 4 bbl carb. For street and high pe

Product Features:

Based on Performer RPM-Series with Unique Air Gap
Air Gap Cooler and Denser Mixture for More Power
Designed For 1500 To 6500 RPM
Dual-Plane High-Rise Intake
Accepts Early-Style Waterneck

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$472.99

Product Features:

For Idle to 5500 RPM Street-Driven Performance
Dual-Plane Low-Rise Intake w/180 Deg Firing Order
Patented Runner Design Ensures Broad Torque Curve
Excellent Throttle Response and Mid-Range Power
50-State Street Legal if Correct Carburetor Used

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$284.99

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.

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$297.99

An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:

Best with aftermarket torque converters and 9.5:1 compression.
Great high RPM power.
Easy on valve train parts.
Can be used with mild ratio rocker arms and traditional performance valve springs.

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$20.79

These grade 5 hex head bolts are brite zinc plated for protection and appearance. Hardened flat washers provide uniform torque & prevent galling on aluminum manifolds. Includes twelve (12) 3/8 inch-16 x 1 inch bolts & washers

Product Features:

Zinc plated to resist corrosion and provide a clean professional appearance
Made from Grade 5 steel for strength and durability
Flat washers provide uniform clamp load and prevent galling on aluminum intake manifolds
Allen (socket) Head
Zinc Plated For Protection

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$42.99

Manufactured from cellulose/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 original equipment replacement, high performance street, drag race and oval track.

Product Features:

Manufactured from cellulose/nitrile rubber composition gasket material
Provides excellent sealing and durability
Complete with molded rubber front/rear oil pan end seals where applicable
For OE replacement, high performance street, drag race and oval track use
Graphite Non-Wicking Rubber
No Cork Particles
Easy Removal For Disassembly

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$21.99

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

Product Features:

Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
With steel core to provide ultimate excellent blowout resistance.
Not intended for use in emission controlled vehicles.

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$31.99

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

Product Features:

Felcoid/Plus gaskets have a fiber sheet core and a latex rubber coating to eliminate potential leakage paths. The core material resists crushing and splitting, while providing excellent blowout resistance.
With steel core to provide ultimate excellent blowout resistance.
Not intended for use in emission controlled vehicles.

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$45.49

Graphite & steel construction, proprietary polymer coated. 4.140 inch Gasket Bore, .028 inch Compressed Thickness.

Product Features:

Steel Shimmed For Perfect Sealing
Increases Engine Compression
High Temp Silicone Coated To Prevent Leaks
Stress Formed Embossments

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$44.99

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.

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$127.99

Product Features:

Cylinder Head Gasket Set
1966-1987 318-340-360

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$344.99

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.

from

$416.99

An older member of the COMP Cams grind family, the Magnum series of camshafts offers excellent performance gains over stock without the added wear and tear associated with more aggressive camshafts.

Product Features:

Best with aftermarket torque converters and 9.5:1 compression.
Great high RPM power.
Easy on valve train parts.
Can be used with mild ratio rocker arms and traditional performance valve springs.

from

$578.99

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.

from

$1398.99

Ideal for use with mainly stock components like rocker arms, intake manifolds, cylinder heads, compression ratio, torque converters and rear gear ratios, the High Energy camshaft grind family is a great choice for street performance applications.

Product Features:

Good blend of efficiency and performance.
Perfect choice for performance street rebuilds.
Work well with mainly stock components such as rockers, manifolds, heads, compression, torque converters and gears.

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$1175.99

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.

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.

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$403.99

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.

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.

Plymouth Valiant Performance Engines

Your One-Stop Shop For Trusted Plymouth Valiant Performance Engines

Essential Plymouth Valiant Performance Engines

Competition Cams – VALVE SEALS, TEFLON 3/8" 1 ST (Part No.505-16)

Edelbrock – Valve Cover Gasket Set for Chrysler (Part No.7592)

Mr. Gasket – High Performance Thermostat (Part No.4367)

Edelbrock – Water Pump Chrysler 1969-85 318/ 360 in Polished Finish (Part No.8887)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 6 Piece Set (Part No.1243)

FEL-PRO Performance – Lower Intake Manifold Gasket Set: 6 Piece Set (Part No.1213)

Edelbrock – RPM Air-Gap Small Block Chrysler Intake Manifold (Part No.7576)

Edelbrock – Performer Intake Manifold Small-Block Chrysler (Part No.3776)

Competition Cams – Xtreme Energy 212/218 Hydraulic Flat Cam (Part No.20-221-3)

Competition Cams – Magnum 244/244 Hydraulic Flat Cam (Part No.20-243-4)

Mr. Gasket – Intake Manifold Bolt Set – Chevrolet Small Block – Socket Head 3/8"-16 X 1" Bolts & Washers (Part No.956G)

Mr. Gasket – Ultra Seal: Oil Pan Gasket (Part No.5895)

FEL-PRO Performance – Engine Oil Pan Gasket Set (Part No.1805)

FEL-PRO Performance – Performance Oil Pan Gasket Set (Part No.1807)

Mr. Gasket – Head Gasket (Part No.1121G)

FEL-PRO Performance – Performance Cylinder Head Gasket (Part No.1008)

Edelbrock – Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Chrysler (Part No.7370)

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam and Lifter Kit (Part No.CL20-222-3)

Competition Cams – Magnum 230/230 Hydraulic Flat Cam and Lifter Kit (Part No.CL20-232-4)

Competition Cams – Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit (Part No.K20-222-3)

Competition Cams – High Energy 218/218 Hydraulic Flat Cam K-Kit (Part No.K20-212-2)

Competition Cams – Big Mutha’ Thumpr 243/257 Hydraulic Flat Cam and Lifter Kit (Part No.CL20-602-4)

Competition Cams – Mutha’ Thumpr 235/249 Hydraulic Flat Cam and Lifter Kit (Part No.CL20-601-4)

Plymouth Valiant Performance Engines List

Performance Engines Brands You Can Trust For Your Plymouth Valiant

Popular Competition Cams Performance Engines

Top Plymouth Valiant Performance Engines from Mr. Gasket

Most Purchased Plymouth Valiant Performance Engines from Mr. Gasket

FAQs for Plymouth Valiant Performance Engines

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