WebMar 1, 2008 · A run-of-the-mill stock iron small-block's intake ports might measure around 150cc. A good stock head, such as GM's iron Vortec castings, will measure around 160cc, but can make more power. A well ...
Eight Budget Small Block Chevy Heads Tested - MotorTrend
WebAmerica's favorite high-performance cast iron small block cylinder heads offer big power and bigger value. Chevrolet Vortec Cylinder Heads' fast burn combustion chamber and … WebJun 21, 2024 · Power: Cast iron heads are known for their ability to produce high power levels. If you’re looking for a head that will provide more power, then cast iron is the way to go. Reparability: Cast iron heads are also known for their durability. If something goes wrong with them, they can often be repaired relatively easily. pioneer woman prime rib roast bone in
A Guide to LS Cylinder Heads - Engine Builder Magazine
WebApr 13, 2015 · Tech: GM 1st Gen Heads vs. Vortec Heads Reader Guide. By Bobby Kimbrough April 13, 2015. Chevrolet’s small-block Chevy was manufactured beginning in 1955, and the first-generation engines (Gen … WebSep 9, 2004 · 164 Posts. #2 · Sep 3, 2004. 441s if i remember right have the same flow as the double humps but have 72cc chambers so they will drop compression a little .they were 327 250 hp heads.put 1.6 exaust valves to them and some port work and you will be happy with them.one other plus is they have the bolt holes in them. WebChevrolet Small Block Head Casting Numbers. Aluminum, LT5, ZR1, DOHC, 32-Valve, drivers Side. This casting # has been used in many different versions of this aluminum 18′ and 15′ Bowtie race head. Different chamber volumes, port volumes, port locations, valve sizes, etc. were used. Check this casting carefully to determine which features it ... stephen mcclave md