Degreeing a Cam, or not.....

Kent mosby said
I don't understand this perfectly. But let me see if my logic is sound. I suspect that the cam is retarded. If the pushrod height of the intake is higher than the exhaust, then the cam is advanced.....as it should be. If the exhaust is higher than the intake, then the cam is retarded. This will double check my measurements. Correct? I may have just repeated what you said but I wanted to be sure.

Here are a few pics on how you measure valve timing events off the pushrods. Engine still in the car, heads on, rockers off, intake manifold on.

Can make up some pushrod caps so you have a big flat target for your dial indicator.

Some 5 1/6" brake line fittings to use as bushings in the heads to keep the pushrods on center that won't drop through the head. (small block setup pictured here)

Can use the straight edge trick on top of the pushrod hats when cylinder is on overlap at TDC, or whatever the advance degree number is recommended by cam mfg.

Pushrod caps bolts, drill out to a few ths larger than pushrods.

There you go, have fun.

Creative Minds at Work

☆☆☆☆☆