429/460 pushrods

keane · #1 (**permalink**) 03-10-2003, 03:33 PM

Hi to all, question time again, I offered up the pushrods in my 429 t/bird eng this weekend, the ones I had (new) are 8.550, and don't seem long enough! I have relaced the std setup with screw in studs/guideplates/comp cams magnum roller rockers, anyone else running that combi? the cam is a new std item until I get the car on the road and shook down, I know there are pushrods in various longer sizes, any suggestions? Thanks as always. Dave Keane UK

Mr.Fixit · #2 (**permalink**) 03-10-2003, 03:50 PM

get an adjustable length pushrod, figure out exactly what length pushrods you need, then order custom length pushrods.

cwmcobra · #3 (**permalink**) 03-10-2003, 04:17 PM

That's what I did. Actually, I bought a pushrod length checker that came with adjustable pushrods. Its a fixture that looks like an aluminum rocker arm, you bolt it down, turn the adjustable pushrods until they are snug, add a few thousandths to compensate for putting the hydraulic lifter at mid-travel. Then measure and order.

BTW, my intake and exhaust pushrods were slightly different lengths. Length will vary based on rocker ratio and cam base circle diameter.

Cheers!

Chuck

keane · #4 (**permalink**) 03-11-2003, 10:27 AM

Thanks for the replies guys, info as always appreciated from across the pond! Dave Keane