steve000

iTrader: (54)

My set up: LQ4 w/ .030 milled L92 heads & 02-04 LS6 cam and 6.0/6.2 MLS Gasket .051 thick, stock lifters, comp cams adjustable pushrod checker, .1 for preload.

I'm having a horrible time trying to get a accurate pushrod length, I had problems doing it for my LT1 and now its back for my LS motor.

I tried the 'tick method,' where you put it to TDC and adjust until the 'tick' is just gone. I consistently got 9 - 9.5 turns to make the 'tick' go away. I also tried the method in the cam guide stick where you mark the valve tip and check the pattern after it turned over but it was never consistent and I had markings all over the place and could never get it to center. I also read about the 1-1/2 turns method, tried that and never got more than 1/2 turn in the range of 8-10 turns of the adjustable pushrod tool.

I know that the 02-04 LS6 cam uses a 7.425 pushrod in a stock motor, how much would milling .030 affect that number because right now I'm looking at a 7.35 pushrod (based on the results I got)...

MIKE93SVT

iTrader: (6)

i'm putting together a simalir combo, asked a few people with lq4's with l92s milled .030, stock l92 gaskets (051). and they all said 7.350

so you're on the right track. this was with stock rockers

steve000

iTrader: (54)

yea I have stock rockers are you using the ls6 cam or similar?

steve000

iTrader: (54)

anyone else?

gennex

iTrader: (1)

.030 off the head will require a shorter pushrod, - 0.030,

the_merv

iTrader: (88)

I've got .032 milled Heads, .040 Head Gasket, but a Comp Custom Cam. I was told that 7.4's were good for my setup when it had the Heads at .025 mill. I'll have to check when I get it back together.

The base circle on the stock Cams is larger than what my Comp is, that is probably why I'm able to run the stock length.

I do want to check it tho..