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500 whp possible with an LQ4, L92 heads and LS3 manifold?

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Old 06-29-2010, 08:13 AM
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Default 500 whp possible with an LQ4, L92 heads and LS3 manifold?

im thinkin bout doin the lq4 swap and was wondering if 500 whp is possible if i went with L92 heads and a LS3 manifold. stock bottom end cubic inch lq4. would basically b a stock top end wich includes L92 heads, LS3 manifold and 90mm throttle body, LS2 fuel rails, and 42 lb injectors. and a cam custom cut. i really would just want a very stout st car with lots of torque and decent top end for roll racing. what do you guys think? any info would be great!
Old 06-29-2010, 09:22 AM
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R u running long tubes, is a street/dyno tune or a mail order tune. I will say this what it is going to come down to is the tune and any other bolt-ons you might be running but 500 is a little out of range with just a cam. That's what it looks like its coming down to.
Old 06-29-2010, 09:32 AM
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i would be using the same exhaust in my sig. and ud pully. the link posted has some great info and gave me pretty much the idea of results i was looking for.

https://ls1tech.com/forums/dynamomet...p-446rwtq.html
Old 06-29-2010, 09:46 AM
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It's going to boil down to what grind you get on the cam. You might need to mill the heads and have them ported to make sure you get close to 500 hp. Texas Speed has some nice ported L92 heads that are supposed to flow about 25 hp more than stock L92 heads.
Old 06-29-2010, 09:47 AM
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I think you need to use a L76 intake for the L92 heads.you can get a l76 intake with tb and injectors for $500 from gm.get a custom cam.



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