Ok guys I'm going to e doing a stockish rebuild on my ls1 soon. I have an 02 z06 cam and a set of 243 heads that I was planning on throwing onto my ls1 with a fresh rebuild just to keep all my driveability that and my budget wont allow a stall right now to support a larger cam. So here comes the kicker do I spend a grand in buying a rebuild kit and do the ls6 conversion myself or do I sell the ls1 and get a low mileage lq9 and use the z06 cam and heads to make a slightly hotter version of an ls2? I cant seem to find a dyno of an ls2 vs an ls6 to compare but I'm told the ls2 will make much more torque down low and under the curve thus making it the better engine. My only concern is will the 80 extra lbs of weight take any advantage of torque the ls2 style engine has away? Basically I'm wondering whats going to give me the most useful power and torque and get me down the 1320 the quickest?

 

How can 70 people not comment? If it was my Z28, and I wanted to do the 1/4 mile quicker, I'd keep the aluminum block. I'd trade the 243 heads for 317s, ditto the exhaust manifolds, and add a turbo. But if you don't like that, I'd still keep the aluminum block, but swap out the 3.42:1 rear gears. Keeping them might be worth 5 RWHP on a chassis dyno, but we don't race dyno graphs. We don't even drive them. And 3.42:1s are no help for a cammed LS1.

 

Im in the same boat now trying to decide to rebuild my LS1 or just get a LQ4 6.0.

 

Didn't we already do this thread?

 

Not this week....

 

ya sorry guys i accidently made a duplicate thread i already had my answer from the dyno section of the forum