Might be Harold is thinking about Aluminum Rods. I clearanced my 4.25 stroke 505 with Lunati Pro Mod steel rods, and it took quite a bit of grinding to get them in there. I'm sure that aluminum would have taken a lot more.
Can you get aluminum rods in a 4.5" stroke without problems? I suppose it might be possible, but I think I'd want it done on a CNC mill by someone that knows exactly where those passages are supposed to be.
HP rating for factory block
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Re: HP rating for factory block
Mine has "H" beam rods in it. Bet you couldn't get a aluminum rod to fit... Here's some pics of the motor. It took a lot of grinding.
Blackhoodmafia!!!!
1972 Nova SS
572 C.I. BBC
Best to date: 1/8
et: 5.28
mph: 134
new wt. 3340 lbs
1972 Nova SS
572 C.I. BBC
Best to date: 1/8
et: 5.28
mph: 134
new wt. 3340 lbs
Re: HP rating for factory block
Here's what a 4.5 stroke looks like in a factory T/D block.............
Blackhoodmafia!!!!
1972 Nova SS
572 C.I. BBC
Best to date: 1/8
et: 5.28
mph: 134
new wt. 3340 lbs
1972 Nova SS
572 C.I. BBC
Best to date: 1/8
et: 5.28
mph: 134
new wt. 3340 lbs
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