703 CAMAROSS

I have a ticking after my swap and I'm thinking its my pushrod length. I'm wondering if my cam has a smaller then stock base circle that I didn't compensate for. Is there a way to tell? I have a cam card. It's a custom grind from comp. My cam card is not with me at the moment so I thought I would ask you guys if there is a way to tell.

sweet99ss

iTrader: (41)

Pull the cam and mesure from side to side off of the lobe and that should tell you

speedtigger

iTrader: (16)

The accurate way to do it is to use v blocks and a dial indicator. Rotate the cam and subtract the total lift from the maximum diameter of the lobe at max lift.

sweet99ss

iTrader: (41)

The way I said is as accurate as it gets lol. You actually have the cam in your hand

Decadence75

iTrader: (17)

Or he can just call Comp and ask since they ground it for him. No need to go pulling it back out again.

BriancWS6

iTrader: (18)

Yes, it will have a smaller base circle than stock. Comp grinds compared to the stock bump stick run ~.050 smaller.

PREDATOR-Z

If it is correct push rod length you are seeking, the way to do it is to measure with a push rod length checker with cam installed.

703 CAMAROSS

Well I was trying to diagnose my ticking in my brand new engine. I was trying to figure out if the wrong pushrod length could be a huge reason as to why its ticking before I buy the tool to measure. But I guess il measure next because I'm runing out of ideas.

blackbird0230

I had the same problem with my new cam and it was the pushrod length.
I ended up having to use 7.500's on stock heads. I also wanted to find the base circle of the cam but I didn't do it. Good luck =]