Rebuilt 302 casting heads available through Rockauto
I built a replacement 318 for my 91 d150 so I could swap it out on a weekend, the truck ran great but smoked sometimes. The engine I used was out of an 85 fury cop car, it had 360 heads and a Quadra jet carb. That motor was a total dog until I had the original heads redone and put them back on. Ran great then. Mine weren’t the 302, they were 714 or something with closed heart shape chambers and small ports. With the tbi and the gramma gear 4 speed it ran great. Outran my bosses new v10 truck, he was pissed.