[ZR1] ZR1 Heads, results?
#9
Burning Brakes
One of you ZR1 guys should try out the new TFS LS3 255 heads, did wonders for my CTS-v. My V put down 679 rwhp threw a auto with a ZR1 (LS9 stock) cam with them. I shaved mine down to 64cc befor installing them.
#10
Melting Slicks
#11
Melting Slicks
i had a zr1 friend try to put ported LS3 heads on and they didn't work due to alternator placement and valve covers. not saying they can't work but would not be a driect fit.
#13
Melting Slicks
Chamber volume: 69.5
9.0:1 Compression on stock LS9 or LSA engine
Minimum of 4.00 bore size recommended with this cylinder head.
Flow numbers are measured on 4.065 bore
LPE CNC L92 LS3 Flow Specs
Intake valve lift / Exhaust valve lift
.200 - 158 cfm / .200 - 116 cfm
.300 - 230 cfm / .300 - 161 cfm
.400 - 282 cfm / .400 - 201 cfm
.450 - 302 cfm / .450 - 213 cfm
.500 - 322 cfm / .500 - 220 cfm
.550 - 340 cfm / .550 - 226 cfm
.600 - 350 cfm / .600 - 231 cfm
.650 - 358 cfm / .650 - 234 cfm
.700 - 344 cfm / .700 - 237 cfm
Lingenfelter CNC machining of the LS9 heads also includes machining the intake manifold locating bosses on the LS9 heads to allow LS3 and L92 intake manifolds to be bolted to the heads without an interference problem.
Competition Cams 26926-16 springs with Lingenfelter Titanium retainers XX04190-0016 on LS9 heads
Installed height: 1.830
Spring pressure: 135 psi @ 1.830 / 480 psi @ 1.150
Coil bind: 1.100
Max lift: .680
#14
Le Mans Master
correct, ported stock ls9 heads with stock gaskets. here are the details of my heads.
Chamber volume: 69.5
9.0:1 Compression on stock LS9 or LSA engine
Minimum of 4.00 bore size recommended with this cylinder head.
Flow numbers are measured on 4.065 bore
LPE CNC L92 LS3 Flow Specs
Intake valve lift / Exhaust valve lift
.200 - 158 cfm / .200 - 116 cfm
.300 - 230 cfm / .300 - 161 cfm
.400 - 282 cfm / .400 - 201 cfm
.450 - 302 cfm / .450 - 213 cfm
.500 - 322 cfm / .500 - 220 cfm
.550 - 340 cfm / .550 - 226 cfm
.600 - 350 cfm / .600 - 231 cfm
.650 - 358 cfm / .650 - 234 cfm
.700 - 344 cfm / .700 - 237 cfm
Lingenfelter CNC machining of the LS9 heads also includes machining the intake manifold locating bosses on the LS9 heads to allow LS3 and L92 intake manifolds to be bolted to the heads without an interference problem.
Competition Cams 26926-16 springs with Lingenfelter Titanium retainers XX04190-0016 on LS9 heads
Installed height: 1.830
Spring pressure: 135 psi @ 1.830 / 480 psi @ 1.150
Coil bind: 1.100
Max lift: .680
Chamber volume: 69.5
9.0:1 Compression on stock LS9 or LSA engine
Minimum of 4.00 bore size recommended with this cylinder head.
Flow numbers are measured on 4.065 bore
LPE CNC L92 LS3 Flow Specs
Intake valve lift / Exhaust valve lift
.200 - 158 cfm / .200 - 116 cfm
.300 - 230 cfm / .300 - 161 cfm
.400 - 282 cfm / .400 - 201 cfm
.450 - 302 cfm / .450 - 213 cfm
.500 - 322 cfm / .500 - 220 cfm
.550 - 340 cfm / .550 - 226 cfm
.600 - 350 cfm / .600 - 231 cfm
.650 - 358 cfm / .650 - 234 cfm
.700 - 344 cfm / .700 - 237 cfm
Lingenfelter CNC machining of the LS9 heads also includes machining the intake manifold locating bosses on the LS9 heads to allow LS3 and L92 intake manifolds to be bolted to the heads without an interference problem.
Competition Cams 26926-16 springs with Lingenfelter Titanium retainers XX04190-0016 on LS9 heads
Installed height: 1.830
Spring pressure: 135 psi @ 1.830 / 480 psi @ 1.150
Coil bind: 1.100
Max lift: .680
#16
Melting Slicks
yes i am.
here is the link to my build thread. since then i've upgraded to the LG radiator and mgw shifter
http://forums.corvetteforum.com/c6-c...scle-cars.html
here is the link to my build thread. since then i've upgraded to the LG radiator and mgw shifter
http://forums.corvetteforum.com/c6-c...scle-cars.html