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Steve Stasko · 10-01-2023, 10:04 AM

I don’t think it would be an issue in SS, but it’s probably a no-go in Stock as the 426W and the 440 have different compression height on the pistons. Ultimately NHRA tech would make that call.

10-01-2023, 10:04 AM	#4
Steve Stasko Member Join Date: Jul 2011 Location: Western PA Posts: 455 Likes: 13 Liked 274 Times in 143 Posts	Re: 1965 426 wedge I don’t think it would be an issue in SS, but it’s probably a no-go in Stock as the 426W and the 440 have different compression height on the pistons. Ultimately NHRA tech would make that call.