AFR 235

[avengerengines]

How many c.i. can AFR 235s support efficiently for a sbc circle track engine? I'm thinking 434 might be too big. Maybe 421 or even 414? We want the most hp we can get.
Bob

[Bucky]

RPM?

[Lockwire]

18* stuff we run 250+ cc and that is truly competitive...........at 350 odd ci in.... you are good to go with a good builder.. Those heads probably at 250 cc intake volume about you'll all make a mediam race car.We get our share or better. good luck.

[avengerengines]

I feel bad for this guy. He broke 2 motors in 2 weeks with some bad advice and workmanship. The first one broke the crank (Fluidamper) while leading the race. The second blew up on the first lap. His money can is getting low. He brought in a pair of the old 17 degree Olds sbc heads that look to be in very good shape. Everything else is new since nothing is salvagable from either motor. They should work good on a 420.
Bob

[Red L98]

I have them on a 434 drag motor , they work good but i bet they would run better on a 406-421 CI motor . I'm getting ready to pull them off and send them out to get some work done ..

[T-flow]

391-410ci would be my range. Im sure their are going to rev it whatever it takes when racing!


T-flow