Backdraft Engine Specs

[ront49]

Originally Posted by casedoc

My BDR #153 has a 418W Stroker from Smeding Performance. Nice torque and accelleration

Hey casedoc...I too have a BDR with a 418w, build no. 151. I've been trying to find out who may have built the engine an get some specs on it. I know the car came into California from S.A. . Then it was shipped to Connecticut. Don't know who put the engine and trans in it. Reg (BDR owner) seemed it may have been done by a CA shop but wasn't for sure. The block is a 351w style stamped "Ford Racing" on the left front. Heads are Victor Jr. aluminum. Scorpion roller rockers so I'm assuming it holds a roller cam that really "romps." I don't know what the original carb was, I think a 770 Holley. I bought it from a guy in Arizona who had changed it out to a fuel injection... I never could get it properly calibrated so I put a Holley 750 on. Trans is a Tremec 500. Any info you have including comments would be welcome. Where is Smedling Performance? I'm in Arkansas. Thanks, Ron ronthomas@cox.net

[Mark IV]

There is this thing called "Google" Crate Engines - Turn key & High Performance | Crate Motors

[Dominik]

I think a BB only appears front heavy because of the smaller tires in front, tending to understeer. A typical compact 3-cyl car nowadays has the same weight on the front axle as a Cobra, but only 30% on the rear. Not like 50/50 of a Cobra.

If all fails, and the cast iron puts you off, use aluminium engine (parts).

I don't know how low you get get in weight for a BDR, but my RAM sat at 917 kg with room for improvement.