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Will L92 heads and L76 intake (w/fuel rails, injectors and TB) work on an LS1?

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Old 10-25-2006, 01:25 AM
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Default Will L92 heads and L76 intake (w/fuel rails, injectors and TB) work on an LS1?

I have a 1998 Z28. My plans were to get a set of CNC ported LS6 cylinder heads (these: http://www.texas-speed.com/shop/item...d=649&catid=20) and a Magic Stick M4 cam (239/242 on a 112, maybe 114) to produce around 420rwhp (did more than that on my friend's car, although he had a FAST and I'll only have a LS6 intake, he had long tubes I have mid-lengths with a 4" muffled. My other friend hit 450rwhp but he has a M6 and LT's where as mine is an A4)...

ALTHOUGH, now that the L92 heads are on sale for $375 a piece assembled they are even cheaper that the texas-speed deal, have bigger valves and flow a little better... Can I put the L92's (part number 12582713) on my LS1???

I know they say you need the L76 intake (part number 12580123) with it but that's fine because for $475 you get the intake, fuel rails, 40# injectors and a 90mm TB... (all of which open another can of worms for compatability).

SO here's my questions:

1) Will the heads bolt up to my LS1?

2) Are the fuel injectors compatible with my electronics?

3) Is there a way to convert the electric tb or do I just try to find a manual TB with the 4-bolt pattern OR make an adapter plate for a F-Body TB?

4) Finally, would I be better off just sticking with the original plan (LS6 intake, LS6 CNC ported cylinder heads w/ M4)???

Thanks in advance, I'm a noob on this one!
Old 10-25-2006, 01:30 AM
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P.S. Please don't "search" flame me... I did a search, I see others are excited about this setup and want to throw them on the 402 strokers but I saw no info about compatability with an LS1... thanks!
Old 10-25-2006, 01:33 AM
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Unfortunately the L92 heads, from what I've read, will not work on an LS1 because of the small bore. I don't think they will work on a stock LS2 even, they require a pretty decent sized bore unfortunately.

I'd love to build an L92 based motor, but I think I'm just rebuilding my LS1 this winter for nitrous.

Go with your original plan, sounds good to me.
Old 10-25-2006, 01:39 AM
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Originally Posted by DuronClocker
Unfortunately the L92 heads, from what I've read, will not work on an LS1 because of the small bore. I don't think they will work on a stock LS2 even, they require a pretty decent sized bore unfortunately.

I'd love to build an L92 based motor, but I think I'm just rebuilding my LS1 this winter for nitrous.

Go with your original plan, sounds good to me.
Gotcha! That makes sense... Thanks for the quick response

You also answered the next question I was searching (will they work on an LS2)
Old 10-25-2006, 06:49 AM
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From what I have read you need at least a 4" bore.
Old 10-25-2006, 06:52 AM
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Look here...https://ls1tech.com/forums/generation-iv-internal-engine/590534-sdpc-402-w-l92-l76-begin.html

The 402 has the same bore as a stock LS2.




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