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ss3011 · 02-08-2014, 03:24 PM

My 1967 GTX came with a 440HP, rated at 375 hp . It was different from the 440 , 350hp because it had a larger exhaust valve, even though the head casting was the same, HiPo exhaust manifolds, a bigger cam, and it had a bigger AFB.

02-08-2014, 03:24 PM	#5
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: difference between 440hp and 440 hp2 My 1967 GTX came with a 440HP, rated at 375 hp . It was different from the 440 , 350hp because it had a larger exhaust valve, even though the head casting was the same, HiPo exhaust manifolds, a bigger cam, and it had a bigger AFB.