WebFeb 11, 2012 · 461 heads I have had a few 461 castings, I prefer the 462 and the 186. 186's are very reliable and have decent flow with flat top pistons in a 350. My best … WebCylinder Heads (P/N 12363390): Aluminum oval port; 110-cc chambers; Valve Size (in.): 2.250 intake / 1.880 exhaust; stainless steel; ... Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations ...

Chevrolet Double-Hump Cylinder Heads - Circle Track Magazine - MotorTrend

WebJul 17, 2009 · 2,152 Posts. #2 · Jul 15, 2009. I don't think you will see a "significant" change by swapping one set of stock heads for another. I do remember seeing a flow comparison between Vortec heads and the double-humps several years ago in one of the magazines.Both in stock form. The Vortecs outflowed the camel humps by 30-40 cfm … WebDon’t give up the engine you know and love — install Gearhead Engines’ remanufactured cylinder heads and you’re good to go! Gearhead remanufactured cylinder heads go … milkwood care home petersfield

Small Block Chevy Angle Plug Combustion Chambers - Ask Marlan - MotorTrend

WebFeb 1, 1999 · 815 Hilbert Rd: Fallbrook, CA 92028-1608: 760/723-0340. Boil, Boil, Toil, and Trouble. I've just put together a 406ci (0.030-over 400) small-block Chevy with a supercharger. It dyno'd at 460 hp ... WebMar 28, 2012 · They all shared the same combustion chamber at 64 .c.c according to Chevrolet, but actuall physically the 1.94 head has what appears to be a slightly smaller chamber as it had a unmachined chamber wall around the intake valve area. This is a giveaway when looking at the heads to determine if they were originaly 1.94 or 2.02. WebMar 14, 2024 · years ago chevy made almost exclusively, just standard strait plug head designs, as technology improved, it was found that getting the spark plug as close as you can to both the combustion chamber center and the exhaust valve helped power, as the technology advanced the later design strait plug heads also had the plug location … milk woman open all hours