WebJul 12, 2012 · On the plus side, the Vortec intake port flows 42 cfm better than the stock heads at 0.500-inch lift and 18 cfm better on the exhaust side. Vortec Iron, Scoggin … http://outintheshop.com/faq/casting/heads.html
The History of SBC Cylinder Heads - LSX Magazine
WebSep 12, 2024 · Chevy 882 heads are cast iron cylinder heads that were installed on small-block Chevrolet engines between 1974 and 1980. The cylinder head was fitted to 350ci and 400ci engines during this time. The 400CI engines can be recognized by the steam holes. They have 76cc combustion chambers and 1.94 valves. The casting number of this … WebSep 4, 2024 · The stock iron 307 heads use a 70cc chamber while the Chevy Vortec heads are 64cc and the Summit Vortecs are 67cc. With a stock piston, we’ll assume the piston is 0.020-inch down from the deck, which is a common situation with ‘70s engines. With a steel shim head gasket and assuming 4cc in the piston valve reliefs, the compression for a ... gretter autoland washington iowa
Small Block Chevy Double Hump Cylinder Head 3890462 eBay
WebJun 30, 2010 · The later 461 or 462 heads would be my choice for a nostalgic look and high performance. Either buy a set with the bigger valves or add them. The 291s would be OK but would have the tell tale plugs for the temp sensor. Also, here is a link to a photo at Super Chevy that shows the X on a 461X head. The heads on my 62 fuely look the same as … WebTechHead Engine Cylinder Head ALL-65056. Part # ALL-65056. SKU # 372703. 1-Year Warranty. Check if this fits your Chevrolet Silverado 1500. WebAug 19, 2012 · 291 heads are the same as 462's which are essentially the same as 461's. 291's have a boss for the temp sending unit - some are not drilled , most are. The '68 model year saw the temp sending unit move from intake to head and this was the SBC performance head meant to deal with that . Mostly good for restorers these days. fiddlehead eternal you lyrics