Head Question

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Nov 16, 2010 | 02:39 PM

LS1BlewByU

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From: Michigan

Head Question

Will OEM GM LS6 / LS2 cylinder heads, casting #243 with the D-shaped exhaust port fit my 99 LS1. I believe these heads are coming off a 05-06 Trailblazer!

Nov 16, 2010 | 02:59 PM

PREDATOR-Z

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From: BFE

Yes, you'll need gaskets and bolts.

Nov 16, 2010 | 03:02 PM

eray

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yep sure will

Nov 16, 2010 | 05:07 PM

LS1BlewByU

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Teching In

Joined: Jun 2007

Posts: 22

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From: Michigan

Awesome, what are your guys opinions good upgrade or what? I Haven't decided yet on what I want to for a cam, but im thinking PSI valve springs and titanium retainers that would accommodate up to a .625 lift. I was talking to someone and they weren't sure on if those heads would work or not beings the lS2 has a larger bore, so thats why I posted I figured yall would know.

Also, Oil pump my car has 28k on it, how hard is it do the oil pump, im doing all this work from top side, ill also be putting in a set of LS7 Lifters (the reason im tearing down is I think I have a screwed up lifter on cylinder 4 or something in the valve train let loose). Any other supporting mods or good mods to do while im in the there Cam Chain etc.....