#3 · Jan 11, 2025 (Edited) Compression Ratio Calculator | UEM Pistons i try to know as much as possible before i build this motor since i only want to have to build it once lol and this is the calculator …

Jun 5, 2019 · The L34 had a compression ratio of 10.25-to-one and the L78 had a compression ratio of 11-to-one. The LS3 had a compression ratio of 10.25-to-one in 1971 and 8.5-to-one in 1972.

Nov 6, 2024 · I am about to rebuild my 300hp 350 for my 69. It is a 10.25 to 1 Compression ratio engine. Since I haven't driven it for 40 years and gas has changed a lot, what are the odds it will run on 93 …

Jul 24, 2000 · Actually my static compression ratio is less than 10.5:1. The domes only have a +5.3cc volume and the heads have 67cc chambers. With that cam, the dynamic compression ratio works out …

Oct 1, 2004 · With a 10.5 to 1 ratio, the Dynamic compression is 7.2 with milder cam, 7.1 with more agressive cam. With 11 to 1, the DCR is 7.48 and 7.42, respectively. Duration at .050" is the same …

Dec 7, 2002 · Something to think about. Dont just aim at a compression ratio ethier, becuase you'll try and cut compression by running more piston to head clearance, get optimal piston to head clearance …

Jan 8, 2010 · Re: compression ratio The L78 is about 11.5 to 1 with closed chamber heads. They should work fine with open chambers. You'll loose at least a point of compression. And don't limit your …

Jun 1, 2004 · Hey all, I was just wondering what compression ratio I can safely run without getting into detonation. Here's my proposed combo: - .030 over 327 (331.6 cu. in.) - 180cc Dart Iron Eagles …

Jan 8, 2010 · Compression ratio is a static measurment of the volume of the cylinder at top dead center vs the volume of the cylinder at bottom dead center. What's really important is dynamic compression …

Dec 10, 2004 · I have a question about compression ratio and Hp on a 396/325 hp engine. Please bear with me because I may not be very familiar with what all the terms mean. The engine has been bored …