COMP Cams® Roller Rocker Arms on V8TV

COMP Cams® Roller Rocker Arms on V8TV

Category:

Autos & Vehicles

Tags:

• COMP
• Cams
• Roller
• Rocker
• Arms
• V8TV

[80v8camaro]

hey guy! I got a 270h magnum cam with 1.5 ratio gold roller rocker in a small chevy and the exhaust rocker on the 6th cylinder alway come loose!!! Do you know why?

thank you

[COMPCams]

@80v8camaro Please see your Youtube inbox for your rocker question. Thanks for your comment!

[70Ford302]

to the guys at comp cams, this is an awesome product, many thumbs up. no problems as of 15000 miles *knock on wood*

[COMPCams]

@70Ford302 thanks so much! We love hearing feedback from our customers. Thanks for the comment!

[94z07]

Simply one of the best "how to" engine videos online. Thank you.

[COMPCams]

@94z07 thank you

[PrimeraRSTKD]

@ericg83z

1.6 

[ericg83z]

hmm i wanna do a set of roller rocker arms on a sbc with a set of edelbrock performer rpm heads? what kind of ratio would i need ? 1.5 or 1.6

[seapeddler]

@70Ford302 The only guideline for lifter preload adjustment is that the lifter 'must' be pumped up. The actual preload should be such that you can slightly slide the rocker-arm over the valve-stem tip with a slight drag, when the motor is cold.This is at tdc for both valves. When the motor is hot, then preload becomes very important.Too much preload, and you may snap a stud, or ruin your valvestem tips and entire vavletrain. The valve needs to close fully to transfer intense heat.

[70Ford302]

Is it normal for the valves to actually open a little bit when setting the preload?...also, my heads were milled .010" and the roller tip rides slightly offset to the outboard side of the engine, will this be a problem?

[seapeddler]

Stock pedestal rocker arms have an oval hole where the bolt passes through.

Do comp cams rockers have this ovoid hole? The oval hole allows a +/- (1/16in.)adjustment fore and aft to compensate for improper rocker stud to valve tip centerline anomalies.

The bolt torque will hold this adjustment exactly. One must check for a centered, mirror wear pattern on the stem tip after 5000 mi. or so. Then you know it is right. A strong vac. reading (22 in.hg) is also a good geometry indicator.