WebOct 21, 2010 · The heads you have (462) came along in 66. Basically, there were two versions of the 461 and 462 double hump heads. Both versions were the exact same casting with the differences only being in machining and valve sizes. They either had 1.94in intake valves/1.5in exhaust valves or 2.02/1.6in valves. WebFeb 15, 2024 · But these heads also saw duty on some 1962 and 1963 full-size Chevy passenger cars with the 300 hp 327. Those produced in the Tonawanda plant were exclusively used on those bigger cars. Flint …

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

WebStep back in time with our modern reproduction of the iconic Chevy 461 double hump cylinder heads, now cast in lightweight aluminum! Also known as fuelie heads, GM 3782461 castings were used on ... WebAug 12, 2024 · The 461 head is more popularly referred to as the “Fuelie” head, because it was introduced as standard equipment on the 1962 327ci Corvette engine that was fed … red nose fundraising ideas

V-8 Powered Corvette Cylindar Heads - Corvette Fever Magazine - MotorTrend

WebJun 30, 2010 · Remember that the '461X heads were used in 1961, 1962 and 1963 with valve sizes 1.94/1.50 only. The revised 461 heads were available starting in 1964 … 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 … 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 … rich batiuk