How much is this new block? http://www.texas-speed.com/shop/item...d=708&catid=20 Is this it?

 

Yep.

 

How much power can I make without breaking the bank and on pumped gas. premium

 

You should be able to make 550-600rwhp with no problem on 93 octane (11.5-12:1) on a naturally aspirated LSX motor.

Mike

 

that is unreal on pumped gas. Should I Inject it or use a carb. Is that power level with a solid roller cam or Hyd. Thanks for all your help .

 

Why is that unreal? I'm making 530rwhp/505rwtq on a 93 octane 11.8:1 408ci motor with LS6 heads and a hydraulic roller cam through a Magnaflow chambered exhaust. The car went a best of 10.53@131 @ 3300+ lbs with a 6-speed and gets 27-28mpg on the highway.

The LSx motors are truly THE pinnacle of GMs SBC design.

There should be no reason why a motor with 50+ more cubes, better heads, and a bigger hydraulic roller wouldn't make 50+ more rwhp than I currently am.

As far as FI vs carb, obviously the nod goes to FI, but there's nothing wrong with a carb (besides gas mileage) if it's setup correctly.

Mike

 

Mike
I'm use to the old SBC. I built one about 13 years ago and it only had about 400 hp on pumped gas. 9.5 to 1 and a performer RPM cam and intake. I love the new LS1 and all the potential I have been reading about. Do you have a build sheet or recommended parts to get to build a hot LS1. thanks again for all your help
Craig

 

It really depends on your goals. There's no reason that you can't build an 346ci LS1 to 550 crank horsepower (470-480 rwhp) with a simple heads/cam/intake manifold change.

You can take an otherwise stock motor and do a top-end build on it by tossing on some ported LS6 heads or aftermarket heads like the new Trickflow 215cc heads, Dart 225cc heads, or AFR 225cc heads; a hot cam like the Futral Motorsports F-14, and the FAST 90mm intake manifold and LS2 90mm Throttle Body.

If you want to see what parts went into my build, you can click on my sig.

Mike

 

kraest what did you do with the engine that came in your vette when you got it?

 

Not sure I understand the question...

If you mean the LS1 motor, it was swapped out for an LQ9 iron block, then built to a 408ci motor...I have the mods in the link in my sig.

Mike