High-mileage 915 J heads... can they be fixed?

MopaR&D said

Gotcha, yeah sounds like finding another set of heads will be the way to go.

@George Jets I looked into those RockAuto heads some more, the ones that are in stock are the ones with holes for air injection. But l could just plug those holes, and all factory 360 heads are basically the same in terms of flow and such right? Especially for a bone-stock app like this.

Click to expand...

Yes can just tap some 1/4" threads and plug those smog holes with some 1/4" allen screws.

Here are a set of the later 596 heads that I rebuilt myself, new valves and guide seals.
All the 360 head castings are all the same flow and port size, just different casting numbers.



The later 360 heads have the hardened seats so they don't sink the valves like your 915s did.