Ryans_pewter_ss

iTrader: (9)

I'm trying to put a motor together on a budget, I thought it was a LQ9 but when I got the heads off its a LQ4, I have a Thunder racing Trak cam package, Can u run the stock heads on the 6.0 and get the compression up? and use the cam I have without flycutting? What head gaskets? And what should the compression be? Thanks, sorry or the ignorance.

95FbFormula

iTrader: (25)

I'm in the same situation but different cam the highest your gonna get with stock 853-241s is around 10.5 that's with milling the heads .030-.035 and you will have to flycut.

5.3LJimmy

iTrader: (10)

Just bolting on the heads with a stock gasket will bring the compression up to almost 10:1. If you mill the heads 0.030 and use an 0.040 thick gasket you get 10.8:1. Without milling and the 0.040 gasket you get 10.3:1. Milling the heads 0.030 and running the stock gasket will net you 10.4:1. I would at least get the 0.040 gasket and it should be ok w/o flycutting.

Ryans_pewter_ss

iTrader: (9)

I was waiting on u to chime in, i've noticed u have made alot of post on this kinda stuff, Thanks!!!!

PREDATOR-Z

Do a mock install, measure PTV, then make a decision on how much to mill, that is the way to do it. Anything else is speculation.