Join Date: Oct 2001
Location: Willow Grove, PA
Re: How do I check cam lift? Motor currently in car.
If the cam is not in the engine you may want to contact a machine shop. The shop I use said he can put a cam in a lathe (sp?) and measure the lift with a dial indicator. It's seems like a simple 10 minute thing so a local guy may do it cheap or for free to get your business.
If the cam is in the engine with the intake manifold and valve covers off I would rotate the engine manually until I see an intake lobe with the lifter on the base of the cam. Then setup a dial indicator (on a magnetic stand) with the tip of the dial indicator touching the tip of the push rod (rocker has to be removed). Zero the indicator and rotate the engine and record the highest reading. Repeat the process for the exhaust lobe and it would be a good idea to measure several lobes as they could be worn.
There's a couple of engine builders on this site Wolfeplace, BillK, etc. that may have a better way or a better explanation. Good Luck!
'70 Malibu, 454 w/Brodix Ovals, TH400 w/10" ATI, 12 bolt with 4:11's
'98 Camaro, M6, LS6 Intake, MTI lid, TB bypass, Ported Maf & TB, Pacesetter Headers, Catted Y, Texas Rumbler Catback, B&M shifter, FRA, !EGR
Last edited by rednecks70; Sep 19th, 06 at 9:56 PM.