which one

Dart 67 sedan said

Seller can't tell me what the part number is . Taken out of boxes and trashed. Is there a way a novice can tell what head it is by looking at them. Already have me one of those "Holler" Dominator intakes. The difference between 48* and 59* is where Head angle or valve . I'm still trying to learn how to put a small block together for some 6. 20 1/8 mile passes. Thanks guys

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The 48 and 59 degree issue is the difference in the angle of the lifter bores, relative to a vertical zero. IOW's, if the lifter bores point straight up and down, that would be a zero degree lifter bank angle.

If the lifter bank pointed totally horizontal, that would be a 90 degree lifter bank angle.

So...the 48 degree block has the lifters standing closer to vertical than the 59 degree block.

When you stand up the lifter banks (48 degree verses 59 degree) you also have to move the entire lifter bank closer to the cam.

Unless otherwise stated somewhere you don't have a 48 degree block. If the heads have open chambers, they are for a 59 degree lifter bank angle.

If they have closed chambers, it could go either way.

Can you post some pictures of the heads, including the chamber and such?