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ss3011 · 10-03-2022, 12:31 PM

There are two versions of the 915 head, the GTX got the 915 HP head which has a larger exhaust valve . If you are having problems finding 915 heads , Mopar also used them on the marine version of the 426 wedge in 1968.

10-03-2022, 12:31 PM	#12
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: 1967 belvedere claimed as a gtx. There are two versions of the 915 head, the GTX got the 915 HP head which has a larger exhaust valve . If you are having problems finding 915 heads , Mopar also used them on the marine version of the 426 wedge in 1968.