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Mark Yacavone · 07-09-2008, 11:07 PM

The 454 combo is a 1975 engine . It's factored to 325 in GT. Looks like the small port head is 45 hp less .
Sounds like the truck motor in a passenger car. I wonder how they designated the difference back then, or did they? Maybe it is a superceded truck head.
Where's Dwight when we need him?

07-09-2008, 11:07 PM	#2
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,815 Likes: 2,903 Liked 5,120 Times in 1,951 Posts	Re: GT/AA Class War At Indy The 454 combo is a 1975 engine . It's factored to 325 in GT. Looks like the small port head is 45 hp less . Sounds like the truck motor in a passenger car. I wonder how they designated the difference back then, or did they? Maybe it is a superceded truck head. Where's Dwight when we need him? __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers