They are light head castings and are prone to cracking. There are a few different 882 castings out here. For instance 333882, 3238882, etc.

Understanding the Context

The easiest way to check if yours is. Just as a comparison it went much harder than an identical 350 running the more common 882 heads. Depending on the cam, intake, pistons, and headers you run, you might. The 993 is a 'heavy' casting 76cc chamber head that is actually not bad for performance work.

Key Insights

Before the advent of the sportsman ii heads. This head was tested with the 1. 94/1. 50 valves. Iโ€™ve got some 1974 882 to heads on my 383.

Final Thoughts

Anyone know what the spark plug reach spec is for this head? Iโ€™m thinking about going with a nkg heat range of 5. The heads are casting 882. 76cc 1. 94/1. 50.

Best i can find is a fairly consistent >200cfm rating. In the garage is a well used 350 wearing some heads with casting 993. The 882 head is the most produced chevy cylinder head over and above all other casting numbers. They were produced in the millions and if you are rebuilding a 70's era 350,.