combustion chamber volume

Rich Biebel · 10-31-2010, 03:37 PM

In the shop I worked at we had a factor written down for almost all common Chevy heads for milling. I milled and cc'ed every head you could think of for over 10 years. An old high compression head like a 461 was about .0065" per cc. A newer style open chamber head like a 441 was around .0058". Bigger chamber area/smaller factor.....smaller chamber area/bigger factor...

Those numbers are from memory......it's been many years since I did that work everyday....

10-31-2010, 03:37 PM	#6
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,314 Likes: 25 Liked 544 Times in 213 Posts	Re: combustion chamber volume In the shop I worked at we had a factor written down for almost all common Chevy heads for milling. I milled and cc'ed every head you could think of for over 10 years. An old high compression head like a 461 was about .0065" per cc. A newer style open chamber head like a 441 was around .0058". Bigger chamber area/smaller factor.....smaller chamber area/bigger factor... Those numbers are from memory......it's been many years since I did that work everyday.... __________________ Rich Biebel S/C 1479 Stock 147R