l92 heads on a lq4 questions?
05-17-2012, 11:47 PM
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l92 heads on a lq4 questions? looking to put some l92 heads on my lq4 and not sure exactly what all i need. i know i need rocker arms and intake. will my ls1 exhaust fit? will my ls1 fuel injectors and rails fit? do the ls1 pushrods fit? just need to know all the basics on the swap and what kind of power should i expect with a cam only lq4 with l92 heads
05-18-2012, 12:53 AM
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exhaust should fit, your going to need an ls3, l76 intake or l92 truck intake, so I dont believe the injectors work. The pushrods will need to be measured and you'll need ls3 head gaskets. You will also need to make the ls1 map sensor fit in the ls3 map sensor hole. Not sure on horsepower. Im just wrapping up my build. lq9, l92 heads.
05-18-2012, 12:56 AM
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You'll need a compatible intake, intake rocker arms, and you'll have to figure out how to make the LS1 MAP sensor work. The L76 intake uses the same size grommet as the LS1 MAP sensor I think.
LS1 exhaust will fit
LS1 injectors will need spacers fur the rail and different lower o-rings IIRC
The fuel rail can be made to work, ,but it'll take some fabrication work. If you're running a returnless fuel system, just get an LS2 fuel Rail.
The pushrods will work.
I'm running a LQ4, L92 heads, 222/226 .597/.598 112 LSA, and a Edge 3600, and I run a 12.7 @ 107 with a 1.70 60 ft in a 4300lb Impala SS. I'm sure I could have a 12.5 with a better 60ft. Depending on the cam, you should be looking at 400-450hp.
LS1 exhaust will fit
LS1 injectors will need spacers fur the rail and different lower o-rings IIRC
The fuel rail can be made to work, ,but it'll take some fabrication work. If you're running a returnless fuel system, just get an LS2 fuel Rail.
The pushrods will work.
I'm running a LQ4, L92 heads, 222/226 .597/.598 112 LSA, and a Edge 3600, and I run a 12.7 @ 107 with a 1.70 60 ft in a 4300lb Impala SS. I'm sure I could have a 12.5 with a better 60ft. Depending on the cam, you should be looking at 400-450hp.
