Originally Posted by only1adrian (Post 3870333)

lsx with twin turbo's 6lbs of boost.
http://im1.shutterfly.com/media/47a3...D550/ry%3D400/

Nevermind, I cant get pic to post.

Originally Posted by professor_speed (Post 3868716)

Imo The LS will shine in up some 30 foot singles and Maybe up a to 38 in twins. Beyond that to make a single speed transmission set up work you really need more torque. Two speed marine transmissions are too rpm limited cause they were designed around diesels, Now if you turbo them, I think you can stick with a bbc to 1200 hp. (1000hp is probably more realistic though) Past that You are going to need an aftermarket LS block and 6 bolt heads other wise, you will lift the heads in a boat environment, And the turbos are going to get too big to bring in boost fast enough to make the torque down low that's needed(you can get away with more for short

Originally Posted by korvetkeith (Post 3872117)

I've been contemplating this transmission idea. I wonder if it be possible to repurpose a powerglide and remove the TC to make it direct.

I don't generally like the idea of forced induction LSX's due to their lack of head bolts, but maybe that theory has been debunked.

Originally Posted by cheech (Post 3871879)

Anymore specs on this build?

Originally Posted by korvetkeith (Post 3872117)

I've been contemplating this transmission idea. I wonder if it be possible to repurpose a powerglide and remove the TC to make it direct.

I don't generally like the idea of forced induction LSX's due to their lack of head bolts, but maybe that theory has been debunked.

Originally Posted by Bromaguire (Post 3872206)

I was running around 14psi through a whipple blower on my totally stock LQ4 for around 30-40k miles with zero problems before changed my setup. I've seen plenty of FI setups on the LS motors and haven't heard of any real head lifting problems.

My current engine with the actual "LSX" block has additional head bolts and extra cooling features.

Originally Posted by only1adrian (Post 3872407)

This was part of testing with this motor, We actually detuned the motor to only about 930hp due to the heads lifting. It is a big problem, but again, if your gonna spend that money, might as well get the LSX block.