I have these heads,part#10048651.These were the closed chamber design for the 3.1.I had the combustion chambers reshaped to lower the compression on my TGP from 8.8 to 8.4ish.All of the combustion chambers have been polished up like chrome and the areas under and around the valve have been ported for max flow.I also have a set of(16) 1.6 ratio roller tip rocker arms(comp cams)that should fit under the valve covers(used).These heads need to be assembled.I have the stock valves,springs,retainers,locks,pushrod guide plates and a set of brand new valve seals.I was going to use these heads on my new build but I'm gonna go a different route.Asking $400 obo plus shipping.Thanks..Adam
Humm, I have a set of 3.1's like that in my atic and a set of 3.4's on my car. Never knew they were worth anything. Mayby if your successful in selling yours I'll drag them out and clean them up. Spent a few hours on both sets.
Hope you sell them.
Jud