CLASS RACER FORUM - View Single Post - Mopar 440 racers

Chris Hill · 12-02-2007, 08:16 PM

Rocket,

I went back and checked the 2000 NHRA rulebook, and a 400 block with 440 crank is legal is SS only, grey area though.

It's legal if the correct length approved rods are used. The rule book does not state compression height must be certian diminsion, same thing with the distance from deck to C/L of the crankshaft. Mains and rods diameters are not checked any more, so your point there is not valid. Same thing for pushrods, intake manifolds, and piston compression height, as you don't care with a SS.

And Jim has a good point, protest next time you see it, but I think you'll be donating to the Steve Wann racing fund instead.

But a 400 block for a 440 engine in stock is illegal as hell.

12-02-2007, 08:16 PM	#40
Chris Hill Senior Member Join Date: Jan 2002 Posts: 655 Likes: 8 Liked 244 Times in 26 Posts	Re: Mopar 440 racers - time to legalize that shortblock! Rocket, I went back and checked the 2000 NHRA rulebook, and a 400 block with 440 crank is legal is SS only, grey area though. It's legal if the correct length approved rods are used. The rule book does not state compression height must be certian diminsion, same thing with the distance from deck to C/L of the crankshaft. Mains and rods diameters are not checked any more, so your point there is not valid. Same thing for pushrods, intake manifolds, and piston compression height, as you don't care with a SS. And Jim has a good point, protest next time you see it, but I think you'll be donating to the Steve Wann racing fund instead. But a 400 block for a 440 engine in stock is illegal as hell. __________________ Chris Hill https://ihmusedparts.com