LS6 to LS7, LSA, or LS9

[Sparks67]

Originally Posted by dhutton

He put an LSA in it. Posted over on the other forum.

Don

I posted this reply, because he wants more power from his CTS-V.

Probably should have called Thomson Automotive, and Brian would recommend the best upgrades for your CTS-v. Power is being made in change with ported heads and new cam. My LS3 418 with LS9 was re-built by Thomson Automotive, and I upgraded my L92 ported heads to Brian's new LS9 CNC ported heads. Same as Mark Stielow engine, and new cam. 85cc for the fuel injectors. I am at 841 hp and 816 ft/lbs of torque at only 11 psi. Dave never tested my engine at 15 psi. Brian is making more power without headers, but he uses the stock corvette manifolds. I plan to use Ultimate headers on my 67 Camaro.

My old test results were 684 hp and 787 ft/lbs of torque at 15 psi, but ported L92 heads and different cam.


Jeff