Will this new Chevy engine be legal in SS Modified??

[G Schenck]

must retain OEM bore spacing. What does that mean? Pro Stock does not have OEM bore spacing but they run those engines in comp.

Greg

[Alan Roehrich]

Originally Posted by G Schenck

must retain OEM bore spacing. What does that mean? Pro Stock does not have OEM bore spacing but they run those engines in comp.

Greg

Sort of a vague rule it seems. I guess if you read it one way, if an OEM made (or maybe just sold under their part number) the block, then the spacing is OEM, unless you modify it. I was thinking that NHRA finally put a limit on Pro Stock at either 4.9" (I think that's correct) or 5.0".

It remains to be seen whether the R07 makes substantially more power, or is just more durable and easier to work with, and has a small HP increase. I think if it had a great deal more HP potential, and NASCAR could see it, they'd have never let it in. Remember how much trouble GM had getting the SB 2 and SB 2.2 stuff in?

Of course, I'm not real convinced that the current bunch running NASCAR is exactly the sharpest knife in the drawer when it comes to doing anything but screwing up, and trying to squeeze another dollar out of their gullible spectators.

[Oclk Dlux]

Originally Posted by Steve Polhill

Aparently according to him if you move the distributor to the front for easier access, everything in that motor must be copying Ford

My friend had a '73 Buick Century with a 350 and the dist was in the front. Also, all the late '60s/early '70s Caddies I've owned all had their distrubitors in the front as well.

Now, if Chevy moved the crank thrust bearing to the middle, then I'd say they were copying Ford.

[Michael Lyons]

Hell if you can get one, just put it in your car. Bore spacing smore spacing, all ya need is a buddy in tech and he'll let you slide and then when someone figures it out and bitches or theatens to tear you down, NHRA will just make a rule change legalizing what use to be illegal and screw everyone with a legal engine right up their ***'es to the tune of tens of thousands of dollars because now you can't sell that obsolete piece and you absolutely have to have the new piece to be remotely competitive.. way to go, my beloved NHRA... So run whatever you want, that silly rulebook is merely a suggestion.