ill 455 heads work on a 425

October 28th, 2008, 09:46 AM

my buddy has a 68 delmont with a 425 and was wanting to know if 455 heads will fit and if so any mods that need to be done

joe_padavano · October 28th, 2008, 02:32 PM

Quote:

Originally Posted by jabba

my buddy has a 68 delmont with a 425 and was wanting to know if 455 heads will fit and if so any mods that need to be done

Yes, they will work. In fact, the same C casting heads were used on the 425 in 1967 and the 455 in 1968-69 (as well as on both the E-block and G-block 400 motors). The only possible issue is pushrod clearance, depending on the lifter bank angle of the 425 block.

64Rocket · October 29th, 2008, 12:53 AM

Joe is correct. But, If it is a '68 Delmont then it's already a 455.

Gene

October 28th, 2008, 09:46 AM	#1 (permalink)
jabba Guest Posts: n/a	ill 455 heads work on a 425 my buddy has a 68 delmont with a 425 and was wanting to know if 455 heads will fit and if so any mods that need to be done

October 29th, 2008, 12:53 AM	#3 (permalink)
64Rocket Registered User Join Date: Sep 2006 Location: Union City Calif.94587 Posts: 301	Joe is correct. But, If it is a '68 Delmont then it's already a 455. Gene __________________

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