1989 la 318

I cant read the pages, they are too small......... But I believe you.

Also, it is possible that the truck 318 head had a different part number? There IS another closed chamber "302" head, that wasn't a 302 casting, I have them on my truck engine.... I'll post the number when I pull the covers off to adjust the valves...

Not saying I dont believe you, I just have never seen a TBI that didn't come with them, or a roller motor, minus the cop car, that got 360 heads.