Are 862 heads castech. Locate the Castech mark under the valve rockers.

Are 862 heads castech. Locate the Castech mark under the valve rockers. I have a spare LS short-block that is also an LM7 (I think) with 862 heads and no intake on it. Re: GM Casting defect with LS heads by airflowdevelop » Thu Oct 13, 2011 10:15 am castech logo (looks like a AA battery) will be on top of the end intake runner. But that doesn't mean the 862 can't crack. 0L, LS1 and High Performance LS Motors. I got a set of 862 heads and Im almost done porting and polishing them up, but I just wanted to know if you guys had any knowledge about the castech heads and if I got a good non-castech heads. 3/4. The difference is in the way they are cast. Dec 30, 2021 · The 706 and 862 heads are the same design. Feb 22, 2016 · The problem is less with the heads and more with running the engine hot. i3i pbqvurw hurk 2y6 do7 c1k hr incgy z2ffm9 nhr