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John Scott · 11-29-2013, 03:01 PM

Jerry, do you think you can use 487x heads if the blueprint lists 487? Are there engines that have 487x specifically listed as the head?

If you search classracer for 487 or 487x there seem to be some posts suggesting the 487x can be used for 1972 200hp 350. That engine doesn't have 487x listed. I'm gathering parts for a 1971 270hp 350 which lists the 487 and not 487x.

11-29-2013, 03:01 PM	#2
John Scott Junior Member Join Date: Apr 2009 Location: New Brunswick, Canada Posts: 69 Likes: 1 Liked 0 Times in 0 Posts	Re: 487 vs. 487x heads Jerry, do you think you can use 487x heads if the blueprint lists 487? Are there engines that have 487x specifically listed as the head? If you search classracer for 487 or 487x there seem to be some posts suggesting the 487x can be used for 1972 200hp 350. That engine doesn't have 487x listed. I'm gathering parts for a 1971 270hp 350 which lists the 487 and not 487x.