Mopar 440 racers - time to legalize that shortblock!

[Lynn A McCarty]

Originally Posted by SSDiv6

Illegal for Stock, but in SS you can run any intake as long the carb is located in the OEM position. You also adapt any intakes with spacers. The Smith brothers (Pro Trans), ran a Chevy intake, with adapters, in the SS 383/Cuda for many years.

We arent talking about the intake, we are talking about the reason why you need the 383 intake. Arent they using a 400 block instead of a 440 block taking about 0.800 inches off the piston height? Isnt that the definition of cross breeding?

Pontiac made a 9.200 deck block that with a 400 we could do a very small crank and a very small piston skirt. We were told that is illegal. Several SBC guys I know say they are going to build a short deck 400 since their rods are like 5.35 inches. Wouldnt that be a killer combo too? Did NHRA allow that?

I dont blame the BBM guys for doing it, it is just that if one group gets it then everyone should. I could only do about 0.200, but a 428 could do about .400, and a 400 could do about 0.750.

Lynn