uxojerry

I am planning the build of a custom chassis C3 and am exploring engine options. I am trying to keep cost to $20k or so. For that money I can go with an all aluminum BBC with EFI (800hp), big displacement NA LSX (700hp), or an FI LSX (hp?).

I stumbled across a new model of the GM LSX 376 called the B-15. It's an all forged motor with 6 bolt LS3 heads and supports 15lbs of boost. At $8k for the long block it doesnt seem bad. I can also go with a forged 408 FI long block from TSP for about the same price.

Using my $20k budget and $8k or so for motor, what are my FI options and what are some realistic hp expectations from each? Please keep simplicity and dependability in mind. I am aware of the FI crate motor options available and am most interested in custom set ups.

Thanks in advance for sharing your knowledge and experience.

b16gsr

I was just discussing this motor with a friend tonight. He had talked to a well know tuner in the industry that seems to believe that it would be goof for 20 to 25 lbs of boost on E85. Built with some good parts so it should support it.

I would totally buy one, as it is small cubes and 6 bolt setup and throw a centri blower on it and make good power with a warranty.

0Arun@CCP

it's look's great.

The only I don't like about,

Is the 4032 pistons. If your fine with that-go for it!

inspector12

Yeah the 4032 are a no go on big boost unless its in a perfect world etc... If its not a 2618 I don't want it for big power IMO. I'm sure thats whey they specify ony 15lbs of boost etc...