Which heads would be better for a modified 5.3 or turbo 5.3
Which heads would be better for a modified 5.3 or turbo 5.3
Robby-2003 Regularcab stepside, 5.3, 93 Nelson tune, 3.73 and Grenade 80, 2/4 drop, 22's LQ4 and 4l80 in garage waiting to be installed!!
1967 Chevy pick-up, torch red, LS6 454 w/mods, 4/5 drop, 18inch Boyd
well the LS6 heads have hte lighter and longer valves. other forms of the 243 have standard valves
both flow same
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
Only the 02's have the lighter valves.Originally Posted by Quik
01 LS6 heads had regular 243 valves with weaker "Blue" springs.
02 got the light valves and yellow springs and LS2 243's got the
yellow springs too.
2002 Tahoe 4.8 - soon to be turbo'd - SOLD
1989 Mustang - LX Vert - 351W-TT - 2inches of dust covering it
2012 Raptor - 497rwhp at 10psi
If you aint breaking - you aint going fast enough
dont forget the 03 04 LS6 motors as well run same as the 02s
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
Thanks , I thought they were similar.
Robby-2003 Regularcab stepside, 5.3, 93 Nelson tune, 3.73 and Grenade 80, 2/4 drop, 22's LQ4 and 4l80 in garage waiting to be installed!!
1967 Chevy pick-up, torch red, LS6 454 w/mods, 4/5 drop, 18inch Boyd
For turbo unmilled 243s would work awsome because of the larger combustion chamber. For N/A though, you would lose power.
na the ls6 milled down a hair did grate for me but if your goin turbo get an ls2 head and have it p&p for the most volume you can get
04 1500 5.3L custom hp tuners tune by myself don have a pic of it yet so hear is my old 01 chevy 5.3 460hp 13.669 @ 116
you can run ls2 heads on a small bore 5.3?
04 RCSB 5.3, Homemade 80mm FM, TU1, TH400
You will lose a lot of compression if you put the 6.0 heads on a 5.3 because of the bore difference.
all the 243s mentioned have 64.5cc chambers
if you install these on a 4.8/5.3 your CR would be 9.1
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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