What are solid rollers (valveterain)

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Feb 2, 2007 | 07:58 PM

Gordon0652

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What are solid rollers (valveterain)

These two words are used a lot, and i have no clue what they are, and what they do better?

Feb 2, 2007 | 08:02 PM

2000LS1TA

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From: Charlton, MA

I thought the dealer was buying your car for $50,000

Feb 2, 2007 | 08:05 PM

landstuhltaylor

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From: CBUS

plenty of info

basically they are great for HIGH rpms

Feb 2, 2007 | 08:08 PM

RA4926

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the rollers are solid instead of mushy

Feb 2, 2007 | 08:29 PM

brad8266

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From: Watertown, NY

Quote:

Originally Posted by Gordon0652

These two words are used a lot, and i have no clue what they are, and what they do better?

Stock hydraulic roller lifters have a plunger of the pushrod end of the lifter. This plunger gets pushed in around .1 inches as the lifter is lifted by the cam. This plunging causes a lot less stress on the valetrain (pushrods, valve springs).

A solid roller lifter set does not have this plunger and every movement of the cam is solidly transfered to the valvetrain, thus is a bit noisier and wears out the valvetrain more as well as requires periodic lash adjustments. Only go solid in a full race car.