Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 433 Bbc Vs 425 Sbc
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Old 08-31-2010, 07:36 AM
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Originally Posted by BottleBaby
{Fuel will be 66% Pump E-85( 96-105 octane) blended 33%with Rockett Brand E-85( octane 112).}
I) A 436 cid SBC based on after market forged components( Motown Block 4.165 bore,6 inch rods,4.0 crank, solid roller cam & lifters) expected power band (2800-7000 rpm) 11.25-12.5:1 CR
II) A 433 cid BBC based on a production block & forged aftermarket components ( +.030 bore 454 block, 6.35 inch BBC rods, 3.76 inch crank, solid roller cam & lifters) 11.25-12.5:1 CR
Sounds like you are keeping the BBC inside specific CID limitation for a reason. You didn't mention the SBC, but I got the impression it would be a 421 to 434?

With this Lynch Mob brewing I'm getting off the sbc subject myself