CR calculator
#31
Re: CR calculator
4.00" bore, 3.48" stroke, .015" shim gasket, .020" in the hole (what I've measured on two blocks, give or take a few .001s"), 56.6cc (including the 4v reliefs) = 12.0:1.
Last edited by RamAir95TA; 04-10-2013 at 09:48 PM.
#32
Re: CR calculator
#34
Re: CR calculator
We can play with STOCK deck clearance numbers all day, (I also have measured two (2) LT1 blocks, and the deck clearance varied from cylinder to cylinder by .002" but averaged that prevoiusly stated .025"), but ...... how can you TOTALLY ignore that 7cc of stock piston relief volume???
#35
Re: CR calculator
We can play with STOCK deck clearance numbers all day, (I also have measured two (2) LT1 blocks, and the deck clearance varied from cylinder to cylinder by .002" but averaged that prevoiusly stated .025"), but ...... how can you TOTALLY ignore that 7cc of stock piston relief volume???
#36
Re: CR calculator
We can play with STOCK deck clearance numbers all day, (I also have measured two (2) LT1 blocks, and the deck clearance varied from cylinder to cylinder by .002" but averaged that prevoiusly stated .025"), but ...... how can you TOTALLY ignore that 7cc of stock piston relief volume???
That's an easy 10-12whp difference.
#38
Re: CR calculator
Well, we are having a great discussion here, but ........ I have to respectfully disagree.
While I haven't personally cc'd them, I've looked at those four(4) STOCK piston valve reliefs often enough, and believe me ........ they are bigger than 1cc each.
While I haven't personally cc'd them, I've looked at those four(4) STOCK piston valve reliefs often enough, and believe me ........ they are bigger than 1cc each.
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