Highest boost on stock heads? [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: Highest boost on stock heads?


schulte
01-09-2007, 06:49 PM
What can the stock heads/gaskets handle in terms of boost? Can an '04 LB7 hold the 60+ PSI coming off an Aurora 5000 with only headstuds?

RacingJason
01-09-2007, 06:53 PM
So far, I have had NO problems. I have over 3000 miles on motor. Many, Many, 60+ lbs of boost runs........almost 700 hp. and 1200 lbstq. I hope mine last a good while.....too?

Dieselson
01-12-2007, 08:46 PM
Should be fine, to about 80 psi. That is where stock gaskets might not hold. 60 Psi should be ok.

keith_2500hd
02-12-2007, 09:18 PM
think "Nasty Girl" was puttin out 85lbs, injector seals were leaking from posting read day after dyno'd.

brett6.6
02-12-2007, 09:57 PM
i run about 48-52 lbs with th stock bolts on my a5k maybe more thats just in fifth, 4th may spike a little higher!!!