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Engine Subcategories

 
66907C from Proform

Extruded Aluminum Roller-Rocker Arm, 1.5 Ratio, 3/8" Stud

Brand: Proform
Part #: 66907C
66907C: Installation Instructions  |  In The News!  (1) |  More Photos  |  Tech VideoRid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle... more

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Starting At
$165.95

66922C from Proform

Stamped Roller-Tip Rocker Arm 1.6 Ratio, 3/8" Stud;

Brand: Proform
Part #: 66922C
The super affordable way to reduce internal valve train friction and valve stem wear. Extra long slot eliminates rocker to stud interference when using high ligt cams. 16 rockers, anti-gall grooved balls and nuts per package.Fits Chevy Small... more

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Starting At
$97.29

66909 from Proform

Extruded Aluminum Roller-Rocker Arm, 1.5 Ratio, 7/16" Stud

Brand: Proform
Part #: 66909
Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem... more

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Starting At
$159.76

66922 from Proform

Stamped Roller-Tip Rocker Arm 1.6 Ratio, 3/8" Stud

Brand: Proform
Part #: 66922
The super affordable way to reduce internal valve train friction and valve stem wear. Extra long slot eliminates rocker to stud interference when using high ligt cams. 16 rockers, anti-gall grooved balls and nuts per package.Fits Chevy Small... more

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Starting At
$89.40

66908 from Proform

Extruded Aluminum Roller-Rocker Arm, 1.6 Ratio, 3/8" Stud

Brand: Proform
Part #: 66908
Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem... more

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Starting At
$159.76

66933C from Proform

Cast Chrome Moly Roller-Rocker Arm, 1.5 Ratio 3/8" Stud

Brand: Proform
Part #: 66933C
Fits Chevy Small Block Engines.Suffix "C" = Clamshell PackagingThese rocker arms are cast of tough chrome moly alloy. Perfect for the average street engine. More rigid and durable than the stock, stamped variety. Roller tip reduces... more

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Starting At
$103.88

66915C from Proform

Extruded Aluminum Roller-Rocker Arm 1.6 Ratio, 3/8" Stud, Self Aligning

Brand: Proform
Part #: 66915C
Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem... more

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Starting At
$16.99

66907 from Proform

Extruded Aluminum Roller-Rocker Arm, 1.5 Ratio, 3/8" Stud

Brand: Proform
Part #: 66907
66907: Installation Instructions  |  In The News!  (1) |  More Photos  |  Tech VideoRid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle... more

Compare Prices

Starting At
$149.99

66906C from Proform

Stamped Roller-Tip Rocker Arm 1.5 Ratio, 3/8" Stud;

Brand: Proform
Part #: 66906C
The super affordable way to reduce internal valve train friction and valve stem wear. Extra long slot eliminates rocker to stud interference when using high ligt cams. 16 rockers, anti-gall grooved balls and nuts per package.Fits Chevy Small... more

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Starting At
$68.88

66931C from Proform

Heavy-Duty Extruded Aluminum Roller-Rocker Arm, 1.6 Ratio, 7/16" Stud

Brand: Proform
Part #: 66931C
Suffix "C" = Clamshell PackagingFits Chevy Small Block Engines.Designed for up to 10,000 RPM. This heavy duty design features an oversized body and fulcrum with a triangulated profile for additional rigidity and strength. Accommodates most... more

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Starting At
$197.73

66914C from Proform

Extruded Aluminum Roller-Rocker Arm 1.5 Ratio, 3/8" Stud, Self Aligning

Brand: Proform
Part #: 66914C
Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem... more

Compare Prices

Starting At
$185.95

66906B from Proform

Stamped Roller-Tip Rocker Arm 1.5 Ratio, 3/8" Stud

Brand: Proform
Part #: 66906B
The super affordable way to reduce internal valve train friction and valve stem wear. Extra long slot eliminates rocker to stud interference when using high ligt cams. 16 rockers, anti-gall grooved balls and nuts per package.Fits Chevy Small... more

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Starting At
$75.50

66930C from Proform

Heavy-Duty Extruded Aluminum Roller-Rocker Arm, 1.5 Ratio, 7/16" Stud

Brand: Proform
Part #: 66930C
Fits Chevy Small Block Engines.Suffix "C" = Clamshell PackagingDesigned for up to 10,000 RPM. This heavy duty design features an oversized body and fulcrum with a triangulated profile for additional rigidity and strength. Accommodates most... more

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Starting At
$197.73

66913 from Proform

Extruded Aluminum Roller-Rocker Arm 1.7 Ratio, 7/16" Stud

Brand: Proform
Part #: 66913
Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem... more

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Starting At
$175.95

66905 from Proform

Stamped Stock Long-Slot Rocker Arm 1.5 Ratio 3/8"

Brand: Proform
Part #: 66905
For use when roller tip is not required. Proven OEM quality. Extra long slot eliminates rocker to stud interference when using high lift cams. 16 rockers, grooved balls and nuts per package.Fits Chevy Small Block Engines.May not be legal for... more

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Starting At
$43.17

66880 from Proform

Chevy Guide Plate, 5/16" S/B, Flat

Brand: Proform
Part #: 66880
Fits Chevrolet small 5/16". Hardened. These precision stampings are carefully formed for exact fit. Each guide plate has been heat treated to increase the hardness and minimize wear. 8 pieces per package.May not be legal for sale or use in... more

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Starting At
$16.23

66929C from Proform

Heavy-Duty Extruded Aluminum Roller-Rocker Arm, 1.6 Ratio, 3/8" Stud

Brand: Proform
Part #: 66929C
Designed for up to 10,000 RPM. This heavy duty design features an oversized body and fulcrum with a triangulated profile for additional rigidity and strength. Accommodates most oversized valve springs. American-made roller bearings are in self... more

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Starting At
$185.57

66879 from Proform

Extruded Aluminum Roller-Rocker Arm 1.6 Ratio, 5/16" Stud

Brand: Proform
Part #: 66879
Rid your engine of internal friction with roller-tipped rocker arms. The race-proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem... more

Compare Prices

Starting At
$175.99

66928C from Proform

Heavy-Duty Extruded Aluminum Roller-Rocker Arm, 1.5 Ratio, 3/8" Stud

Brand: Proform
Part #: 66928C
Suffix "C" = Clamshell PackagingFits Chevy Small Block Engines.Designed for up to 10,000 RPM. This heavy duty design features an oversized body and fulcrum with a triangulated profile for additional rigidity and strength. Accommodates most... more

Compare Prices

Starting At
$189.69

66870C from Proform

Screw-In 16-Pc Rocker Stud Set, Fits Chevy S/B & Ford, 3/8" Studs

Brand: Proform
Part #: 66870C
Suffix "C" = Clamshell PackagingMay not be legal for sale or use in California or on many pollution controlled vehicles

Compare Prices

Starting At
$21.38

 

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Rocker Arm - Information

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