Quote:
Originally Posted by von guido
umm,you really think there is a comparison between a bbc and sbc? you have to build a radicle street sbc to get 500 rwhp and a bbc on the same power level would be MILD. I have a 30.1 inch rear tire with a 3.08 gear and with a MILD 454 I can flash the convertor at 40 and break the rear loose...and my cam is right @.500 lift so VERY tame for a bbc.
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Ok, so how many people with "daily driver" vehicles have true 500RWHP numbers??? Gimme a break.... Sure you're gonna make more power with the 454 - no replacement for displacement as they say. But given he's talking about a street driven vehicle that already has the SBC installed he'd be plenty happy (and have more money left) with a mild 383 engine. Anything over 300RWHP for a street driven vehicle is going to feel
GREAT & with the 383 he'll have gobs of torque down low to make the truck really pick up off the line. Besides "breaking the rear loose" might be fun in an empty parking lot, but on the street in a light rear-ended pickup (especially with posi or in the rain) it can get just a little hairy!!!
And NEVER forget the trade off of fuel mileage between the 454 & SBC - it takes more fuel to fill that large a bore & stroke without question!!!
But, just my feelings on it.