Well I'm getting Allen to do the actual turbo build, I just want to knock some things out while I'm waiting to recover from moving and the holidays. Of course I'll go by what he says, I haven't actually asked him about the heads and CR, I know he is a busy guy and I try no to bug him too much. It's not like I'm taking it down there next week. Shooting for 650-700 at the wheels.
2011 Chevy crew cab 5.3
2013 Chevy crew cab 5.3
Wouldn't it depend on what 6.0 heads he's going to use? 243's came on a 6.0l (LS2)
1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.
True, but either would drop compression.Originally Posted by low91
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
He has a 2011, his 5.3 probably already has 243/799s and flat top pistons.
I forgot about that. You'd think that with those heads being more common now that the price for a used set would go down.
1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.
now what 6.0 heads you thinking? L92 or the 243 since you have a gen IV?
317s on a 5.3 net you 8.4 cr extremely low,
your better off with 9.0-9.5 for most builds
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
The 317's are the only ones I have looked at so far. I would be interested to know what you would suggest though.
2011 Chevy crew cab 5.3
2013 Chevy crew cab 5.3
Leave your heads you have now.
Both my 53s have 243s on them. One came with them from factory
2002 Lightning - GT headed 5.5Litre w/ Twin 7665s
2002 Silverado - 427Lsx w/ Twin gt4202s
2010 Silverado crewcab Z71 - 5.3litre w/ procharger
2000 Wrangler - 5.3litre with some stance
2014 Xsport- 3.5 Eco boost
412 Motorsports
it ain't that I'm too big to listen to the rumors, It's just that I'm too damn big to pay attention to 'em..That's the difference
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