Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Generation IV Internal Engine
Sign in using an external account
Register Forgot Password?

Generation IV Internal Engine
2005-2014 LS2 | LS3 | LS7 | L92 | LS9
Sponsored by
ERL Performance

LQ4 - L76 Clone

Thread Tools Search this Thread
Old 03-28-2010, 02:50 PM   #1
Garage is empty, add now
Trader Rating: 1
Join Date: Feb 2009
Posts: 250
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?
Need4Camaro is offline   Reply With Quote
Old 03-28-2010, 03:40 PM   #2
LS1 Tech Administrator
2013 Chevrolet Corvette
Patrick G's Avatar
Trader Rating: 14
Join Date: Nov 2001
Location: Victoria, TX
Posts: 8,230

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 EPS blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger running 11psi, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph in street trim.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph Texas Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 Texas Mile
2014 GMC Yukon Denali XL 6.2L Air Raid MIT, tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
Patrick G is offline   Reply With Quote
Old 03-28-2010, 03:40 PM
Pontiac Firebird

Paid Advertisement

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lq4 head swap 87jct90 Generation III Internal Engine 4 10-14-2013 05:30 PM
What are realistict RWHP #'s LQ4? sc5952 Forced Induction 13 07-08-2013 03:13 PM
400 - 425 HP on 87 Octane - 6.0L (or 6.2L V8) Need4Camaro Conversions & Hybrids 5 08-14-2010 10:29 AM
L76 vs LQ9... Why is the L76 more powerfull with less compression? Need4Camaro Generation IV External Engine 11 04-15-2010 06:44 AM
Another L76/L92/LQ4 build... ss.slp.ls1 Generation IV Internal Engine 3 04-14-2009 05:44 PM

400, 400hp, cam, compression, heads, hp, internals, l76, lq4, ls6, ls7, make, mods, specs, whats, yukon

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

Join Ls1Tech

All times are GMT -5. The time now is 04:23 AM.

Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details