Another BBC HP question
I didn't even think to put this question out there, but after seeing the other 489 thread I figured it can't hurt.
I'm having trouble getting a hold of the guy that built my engine. Having to go through a third party. I should probably just call him direct, but...
I don't know my stroke. Is there a way to back into the length? Also, is the HP/Tq number that I was given realistic? Here are the specs I know:
489 ci 10.2" deck. 2015 GM crate block.
+.020 pistons. It's supposed to be a total of 502ci. What stroke would get it there?
502 oval port heads shaved .010.
Edelbrock Performer 2p oval port intake on spacers.
It's supposed to be between 10.5 and 11:1 compression. Thoughts are closer to 11:1.
The cam specs I have are only that it's 565/304.
I’m told 540hp and 520lbft. Sound right? High? Low?
'69 SS396 X66 L34 08D M21 BS
460ci Gen VI 9.75:1 AED 950 carb
241/249 @ .050" .625/.625 110 LSA
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