WebJan 24, 2024 · So with a small-block Chevy with zero piston deck height, we’ll need a 0.039-inch thick head gasket to establish a proper piston-to-head clearance. ... As an example of how all this affects compression ratio, a 350 small-block with flat-top, four-eyebrow pistons that are an average of 0.023-inch below the deck equipped with a 0.039 … WebOct 21, 2009 · 149 Posts. #16 · Oct 16, 2009. That 400 with a dishtop piston is usually around 10 to 1 or 10.5 to 1 compression with 64 cc heads. That is figuring a 12.5 cc …
LM7 5.3L Vortec 5300 Engine Specs: Performance, Bore
WebMar 8, 2024 · You're at about 8.3:1 with the original 76cc heads and a .039" head gasket. With the 67cc heads and a .051" gasket you're at about 8.7:1. If you could use a slightly … WebJun 1, 2024 · An engine configuration with a very short lifespan, offered in just two model years. The 1975–1976 262 was a 4.3 L small block with iron block and heads. The 262 was installed in the Chevy Monza, Nova, and Pontiac Ventura. Power output for 1975 was 110 hp and was replaced by the 305 for the 1977 model year. bundy law office tulsa ok
Compression Calculator - Butler Performance
WebFeb 27, 2024 · It made 185 horsepower with an 8.5:1 compression ratio and two-barrel carburetor, 220 horsepower with 9.5:1 compression and four-barrel carburetor, and … WebAbout the shortest practical compression height for a piston is 1 inch. This means that with a 9.000 block height the longest rod that can be used with a 4-inch stroke is 6 inches. If you are building a 3.75 stroker then, a 6.125 Scat Premium 7/16 rod can be used with a piston having a 1-inch compression height. WebApr 10, 2024 · We plugged in this new number into the calculator and it gave us 9.7:1. This is not a bad ratio for a mild street small-block running on 91 octane pump gas. The beauty of this simple compression ratio calculator is that you can quickly juggle different combinations to come up with a preferred compression ratio. bundy lemon lime