Unless your combo came with 1.6 they are not legal. Whenever someone asks for a performance gain report on one part, the answer would be no. The entire combo needs to be considered. Especially cam and springs lifters pushrods etc. when you are talking legal stocker parts, it all has to work together.
Quote:
Originally Posted by Dan Fahey
Have an LT1 with SA Stock Rockers on 7/16 stud.
They do not need push rod guides.
Is there any performance advantage going to a Roller Tip or full Roller Rocker?
I have a set of 1.6 GM SA Roller Rockers.
Can the Cam be ground and use the 1.6 GM RR’s if it meets Lift Requirements?
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