Pushrod math question inside
Pushrod math question inside This is a simple process and it may be going over my head completely 😳.
I have a 4.8 with BTR stage one 4.8 turbo cam, PRC 2.5 58cc heads and BTR small bore 9layer MLS HGs (No turbo kit yet).
My pushrod math with an adjustable PR=7.350” with a Solid LS lifter.
I have New LS7 lifters installed in the engine currently which have a .050 taller cup.
so… 7.350 - .050 (for LS7 lifters) = 7.300” + .100” for preload would put me back to 7.400” Correct? Thanks for the help..
I have a 4.8 with BTR stage one 4.8 turbo cam, PRC 2.5 58cc heads and BTR small bore 9layer MLS HGs (No turbo kit yet).
My pushrod math with an adjustable PR=7.350” with a Solid LS lifter.
I have New LS7 lifters installed in the engine currently which have a .050 taller cup.
so… 7.350 - .050 (for LS7 lifters) = 7.300” + .100” for preload would put me back to 7.400” Correct? Thanks for the help..
I used a “fixed” LS1 lifter. LS7 lifters have a different cup that is .050 taller so subtracting.050 was necessary to get correct figures. On a LS7 lifter .100 preload is the general consensus on where you want to be.
Originally Posted by Onbusy
Why not measure with your actual lifters? Find zero lash and then add your preload. That would be the most accurate way.
Your math seems correct.
Your math seems correct.
Sorry I missed that part. I'd been at work for like 18 hours.
