ProComp/Speedmaster aluminum heads

Yeah..... this making my head spin. LOL. ...I’m just gonna order the assembled heads and run ‘em. Just going on a stock stroke rebuilt 360 with speed pro hypereutectic pistons.

it’s going in an old truck.

Not so fast about Bolt them on and go. The set I bought went right to PRH and I am glad because the long term would have created problems. He may chime in and tell you what he found. Quite frankly I don't remember all the details and I don't need to. He is a strait shooter and they are now corrected without question and that's why I sent them there....

JW