What LS6/Ls2 cylinder head is this?
#1
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What LS6/Ls2 cylinder head is this?
I have an LS1 from a 2002 Corvette and I'm looking to upgrade to the Z06 spec (not after crazy power) I have seen this head and I'm trying to identify it. So far I know the 243 casting was used with 2001 Z06, 2002-2004 Z06 and the LS2. The 2002 to 2004 were the ones with the sodium filled valves and that's really what I'm after. This head seems to have blue stripe valves which I have read to be the early 2001 heads, but the seller says the heads were bought new and he says the valves have green stripes. I asked if there was a year number on it and he said "04".
Any ideas on identifying it further?
#3
Burning Brakes
I'd jump on a set of those (I already have a set I'm planning to swap in the next phase of mods). Swap out the springs and call it good. Unless you want to send them off for a bit of rubbing and decking.
MURDEREDOUT-not many of us in LV. Nice to see someone else around here, aside from KITT.
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MURDEREDOUT (09-02-2019)
#4
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Thank for the feedback, I do want to go for them but came up at a time when I'm already making a custom exhaust system. Do you think an LS1 with these heads and a cam swap will get to 400bhp? I want the cam to behave like a daily driver.
#8
Melting Slicks
Since all else is equal, Z06 heads, cam, inlet, and tune should yield 405ish HP -- at the crank. If what you really want is 400 at the wheels -- and don't we all, really? (if not more...) -- then you will need more than the Z06 cam, although perhaps long tubes and proper tune might get you close. Maybe porting the heads, long tubes, and tune would get you 400 at the wheels and OEM drivablity.
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kalayaan12 (08-25-2019),
LS1Brit (08-26-2019)
#9
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hi, so got the heads and weighted the exhaust valves and 65g so they are the sodium ones. One head has springs with blues strip and orange dots, the other a gold colour with orange dots.
Any ideas?
#10
Pro
GM hot cam
If you want a mild cam and make 400+ just get this GM hot cam kit. Nice idle and car won’t be stinky. Significant bump in power.
But to answer your valve spring question just change all the springs to the GM blue springs for $80 and it will be brand new!
https://www.hawksmotorsports.com/cam...valve-springs/
But to answer your valve spring question just change all the springs to the GM blue springs for $80 and it will be brand new!
https://www.hawksmotorsports.com/cam...valve-springs/
#11
Melting Slicks
Did you weigh valves from both heads? I'd worry you have a mixed set -- not that I know of any problem with that, other than spring performance. Murderedout makes a good point about changing the springs so they are both known good and all the same.
Great web link he provided as well!
Great web link he provided as well!
#12
Le Mans Master
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St. Jude Donor '13-'14-'15
I don't like using the Z06 GM cam on an automatic car--because the Z06 then only came with a manual trans--- the cam's power band is a lot higher in RPM's especially on the low side ( unless you plan on a higher stall like a 3000) otherwise you are killing off some off idle to 3000 HP and TQ
My opinion only
My opinion only
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redzg (09-04-2019)
#14
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