Thread: 500 350

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Well I cannot give you all the details you need but I would expect you need to find a 350 block with 4-bolt mains and better-than-stock rods (Eagle), as far as I know the first weak point in the SBC over 500 HP are the rods. Then I would think you would need forged pistons to take the extra beating of nitrous. A high lift cam, possibly a roller cam, for over 0.500" valve lift and a torque converter with a raised stall rpm. Then you will need some aftermarket heads or maybe better Vortec heads and some basic rebuilding machine shop work. While you can do a basic rebuild with mild improvements up to about 300 HP for about $1800, I would think you would need at least $3000 to build up a nitrous burning engine, maybe more. First study Ryan's site and see what combinations give about 400 HP on the motor alone and then figure you can get another 100 HP briefly with NO as long as the rods and bearings hold up. I am only answering to keep this thread going until someone else can tell you specific details, but first look at:

http://www.ryanscarpage.50megs.com/combos1.html

Don Shillady
Retired Scientist/teen rodder