changing combo need help

I just found out my crank is cracked.So I am changing directions what is the best deck height block/rod length/stroke/bore combo ? going to run about 35 psi boost and needs to be chevy I was thinking of a 540 to 600 ci water block wanting to make 2000 hp thanks Craig

 

BBC Combo

I am building a 540 4.5 Bore tall beck (10.2) Big M, 4.25 stroke. 6.700 GRP rods. This seems to be a pretty standard combo from what I have seen. We're going to about 40-45 PSI with this, so 35Psi should be a reasonably reliable engine.

My 2 cents
Corey

 

http://www.newcenturyperformance.com/

 

I run a 4.250 stroke with 6.700 rods as well with 4.467 bore 10.200 deck. The cylinders look very good and show little wear as compared to my old 4.500 stroke combo with 6.585rod.

 

What would be the best deck height?? I am starting from scratch I may as well go big if its feasible

 

New Combo

You can get blocks with almost any deck height. If you need to stay with a cast iron I think you can only go as high as 10.2. With aluminum you can blocks up to 12" (probably more now) It just depends on your budget.


Corey

 

THANKS WILL YOU DA MAN !!!

 

Hey Craig,
Is this going in a blown jet boat or is that just your avatar. If so, I would get the tallest block and the longest rod you can get into whatever stroke combo you eventually come up with.