PKC-Z71

iTrader: (8)

I'm getting ready to put ported and shaved 5.3 heads (with LS1-sized valves) on my 99 Z28 along with a stock GM 2002 ZO6 camshaft. The heads DO have dual-valvesprings that are made for .600 lift cams. Will my stock pushrods be OK with this setup or do I need to throw down for some hardened ones? I've heard both ways from LSx racers around here, and I wanted to see what some of you guys that have experience building and racing these engines had to say about it. Thanks, Paul

TransAmcoupe98

iTrader: (10)

Hell no, get some strong ones from comp for $98. You WILL break your stock ones in a very short amount of time...

racer77ss

the stock pushrods suck and if the heads are milled the valvetrain geometry might be off from stock

Phoenix 5.7

iTrader: (7)

yeah with milled heads id see if u can get somebody to check proper length. might need some 6.350s or something depending on how much they are milled

Fratsit

iTrader: (1)

Before you buy any pushrods, get an adjustable length PR checker and verify your required length with your desired lifter preload factored in.

..... Hey Phoenix.... I hope you mean 7.350's..... LOL

Phoenix 5.7

iTrader: (7)

yeah, 7.350. its been along day