sho-me speed

iTrader: (55)

I bought a custom grind cam specs:239/241 .605/.605. The cam manufactureer said that the ground .085 off of a stock ls1 cam(1.55 base circle). My question is would I want to go with a 7.450 pushrod? I have 7.4s in it now and it sounds like a sewing machine. I failed to check the base circle before installing this cam. (BTW I have stock thickness head gaskets and unmilled LQ9 59cc heads.)

PREDATOR-Z

You could get a p-rod checker and measure first. But yeah either 7.425's or 7.450s
I would go with 7.425s since they are a little longer than advertised.
Mark