I believe that they do. They have a full machine shop, and dyno right there on premises. They build, freshen, marinize motors, everything. They are the ones chosen by GM for the vortec motor, as well as the government for much of their engine needs.

If you would consider smaller power, I would suggest trying CPE.

Cuda Performance Engines:)

Might be a little light on power, but maybe a viper motor?
http://www.ilmor.com/marine/

I'm running 510 c.i. 645 h.p. Sterlings. Single carb, naturally aspirated. I am very pleased with them. They were much more affordable than one would expect, and much less expensive than Mercury. Mike, Ed, and all the people at Sterling are great to work with. I don't think you can go wrong with them. It's a plus the shop is a little over 1 hour from me - it's definately a factor to consider.

Yeah what he said! Primal Instinct, Ancestral Spirit and Offshoregasm all the way from Ft Lauderdale to Key West and back over 4000 rpm's the whole way and not a single issue. Daves boat is a 93 topgun with 3's and 675's He runs poker runs and has won P class races with this boat w/o a problem. NK

Chiefs!

Tommy is great to work with, honest and competent. His engines have insane torque and our reliable. Plus, your not doing topends at 50 hours, or losing valuable boating time.

#6's are the way to go...spend the money and never look back. Also, Marc at BAM's 1500 drysump trannie will make sure there are no weak links.

Other factors, location of the builder, do they specialize on cats or vees, time between rebuilds (hydraulic vs. solid lifters), how long has the company been around, etc.

There's been a lot of good builders discussed here, but I'm changing my vote:

Lycoming.

A buddy of mine had an engine built by these guys and he is very very happy with it. This guy is as anal as they come and excellent to work with. If I were to have engines built it would be by him.


http://www.hekimianracing.com/

I can't find a number for Sterling:confused:

I found Sterling in FL, but don't I need Sterling in OH?