I noticed a cheap set of 7.3 IDI heads come up on marketplace in my local area. I know the later rockers can be an upgrade for 6.9 heads, but can the entire assembly be used on a 6.9?
Are you asking if the entire head can be used.... it could, you would just need some kind of sleeve to go from the 1/2 in bolt holes in the 7.3 heads to the 7/16 studs/bolts in the 6.9.
No, there isn't enough meat to drill the 6.9 out to 1/2 bolt holes
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