Who makes the best flowing heads for 4.030 bore and a THICK deck......for my 390ci...
08-19-2013, 09:28 AM
#41
OP, the absolute thickest deck would be All-Pro. They have a few heads with a 1 inch deck but most are 3/4. For some reason though, their castings just seem more solid than a comparable head.
08-19-2013, 09:41 AM
#42
Martin, don't forget ls2formula on here. He went 7.70 with full weight street car with twin turbos. He had TFS 235's also. 422 solid roller on e85. Everything was still in the car except A/C.
OP, the absolute thickest deck would be All-Pro. They have a few heads with a 1 inch deck but most are 3/4. For some reason though, their castings just seem more solid than a comparable head.
OP, the absolute thickest deck would be All-Pro. They have a few heads with a 1 inch deck but most are 3/4. For some reason though, their castings just seem more solid than a comparable head.
But now I'm having trouble finding heads with a thicker deck with larger chambers than 68-70cc......I wanted to drop my current 10.8:1 cr down to about 10:1 or 10.2:1.......with my flat top pistons. Plus use Full Time E85.....
.
08-19-2013, 09:42 AM
#43
I believe there is a very long thread on YB about the 6.70 passes and even more recently the 6.20 passes with the Warhawk hardware.
I still think that Mike Brown going 7.30's with a hydraulic roller, TFS 235's, Single turbo and at 3400lbs on a 315DR is even more impressive than Andreas going 6.70@2400-2500 lbs. with twin turbo's and a 33" tire.
08-19-2013, 09:49 AM
#44
3/4" should do me just fine....right? Just gonna go for 21psi.
But now I'm having trouble finding heads with a thicker deck with larger chambers than 68-70cc......I wanted to drop my current 10.8:1 cr down to about 10:1 or 10.2:1.......with my flat top pistons. Plus use Full Time E85.....
.
But now I'm having trouble finding heads with a thicker deck with larger chambers than 68-70cc......I wanted to drop my current 10.8:1 cr down to about 10:1 or 10.2:1.......with my flat top pistons. Plus use Full Time E85.....
.
Problem solved.
10:1-10.5:1 IMO is perfect with E85 and boost. I am running 10.3:1 on my race car non intercooled on Ethanol and my engine will see no less than 20-22psi at all times and possibly as high as 26-28psi.
