cursing market tonight I found a set of hemi industrial heads for sale and was wondering if they are any good performance wise. I've heard of some Bonneville guys running them in the past. Do they flow any good with high R.P.M? I did a quick search in the Hemi tech index but didn't find anything the heads are casting number 1486833-1 The ad didn't say what year/ CID they are off.
https://www.jalopyjournal.com/forum/threads/hemi-tech-index.118764/ You are going to have a lot of questions, hope this helps since I don't have the answer in the gray matter.
Here's one that comes up searching for "casting number 1486833-1" https://www.jalopyjournal.com/forum/threads/331-hemi-heads.496913/ EDIT this came up too. Might want to copy this for your files if you get the heads. http://www.thehemi.com/forums/viewtopic.php?t=2851
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