Does anyone know the difference in cup height between an LS1 and an LS7 lifter? I have heard the LS7 is .050 less than the LS1 and requires longer push rods. Is the this correct?

Only post if you actually know. Thanks.

 

LS7 is a direct replacement part for the original lifters, no difference. There was a thread somewhere with the old people from Thunder Racing who did a comparison with measurements and everything, worth a read if you can find it.

 

Thanks for the input. I will search for the thread.

 

This topic has come up many times. Understandable. I ordered LS7 lifters and found them to be 100% the same and installed with no issues.