![]() ![]() My good friend the late John Lingenfelter once told me that you can make great power with good heads and a less-than-ideal cam, but you have no chance to make good power with a great cam and junk heads. There are a number of far better choices for heads in both iron and aluminum. These are not considered a good flowing cylinder head that would make decent power. The 10147898 heads were used in late 1980s and early 1990s Chevy light duty trucks. They have a large 76 to 78cc combustion chamber and small valves. Let’s also take a look at your cylinder heads. The casting number on my cylinder heads reads 10147898 : It appears these are 1995 through 1998 350ci crate engines, 78cc chambers, with 1.84/1.50-inch valves.Īre these heads okay to use? I’m also not having any luck making a decision to choose the proper cam. I am building a mild street engine and researching my existing heads for air flow. ![]()
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