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LQ4 - L76 Clone

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Old 03-28-2010, 02:50 PM   #1
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Default LQ4 - L76 Clone

I'm thinking of building LQ4 which runs the same compression as the L76.

I want to make about 400 HP on 87 Octane...

What all would I need to do this?

Using the L92 heads, what specs would the heads need to be and can I run a LS6 Cam with that on 87 octane or what?
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Old 03-28-2010, 03:40 PM   #2
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LQ4 runs a 7cc dish piston whereas the LQ9 and L76 run a flat top piston. The dish drops the compression of a 6.0L with L92 heads to 9.6:1. If you want higher compression, you can flat mill the head or run a thinner gasket.

You could run an LS6 cam with L92 heads and make over 400 flywheel horsepower with ease assuming you have an L76 intake and headers. This would be a great 87 octane motor.

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Cam Motion blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph at US Half Mile.
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400, 400hp, cam, compression, heads, hp, internals, l76, lq4, ls6, ls7, make, mods, specs, whats, yukon

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