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Don Himes · 11-19-2007, 05:55 PM

Jake, let's slow down a little bit. First off, You must not be looking at the NHRA classification guide correctly. In 1971, the 400 cube engine is factored from 300 to 320 h.p. and the 455 is at 325 h.p.Now in 1972 the 400 is factored to 310 h.p. and the 455 is factored to 315 h.p. Now you can clearly see that the 455 is a much better deal. Now if you get the '71-455 engine defactored to 315, its all even! BUT, if you don't get it defactored, your better off getting the '72 parts and calling your car a '72. Do you follow me so far?

11-19-2007, 05:55 PM	#15
Don Himes Member Join Date: Nov 2001 Location: Port Charlotte, Fla. Posts: 160 Likes: 0 Liked 0 Times in 0 Posts	Re: hello, I'm new Jake, let's slow down a little bit. First off, You must not be looking at the NHRA classification guide correctly. In 1971, the 400 cube engine is factored from 300 to 320 h.p. and the 455 is at 325 h.p.Now in 1972 the 400 is factored to 310 h.p. and the 455 is factored to 315 h.p. Now you can clearly see that the 455 is a much better deal. Now if you get the '71-455 engine defactored to 315, its all even! BUT, if you don't get it defactored, your better off getting the '72 parts and calling your car a '72. Do you follow me so far? __________________ Don Himes 2075