73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Performance => Topic started by: 454c10 on February 03, 2015, 07:09:23 pm

Title: 1984 454 is what generation?
Post by: 454c10 on February 03, 2015, 07:09:23 pm

What generation is a 1984 454? And what heads didbit have peanut or?

Title: Re: 1984 454 is what generation?
Post by: Engineer on February 03, 2015, 08:26:44 pm

1984 is a Mark IV.

Two piece rear main seal, old style coolant ports.

Heads are probably small port, small valve, boat anchors.

Title: Re: 1984 454 is what generation?
Post by: 454c10 on February 03, 2015, 08:36:55 pm

So would it not be worth build to a 500 hp motor or is it a waste???

Title: Re: 1984 454 is what generation?
Post by: Engineer on February 04, 2015, 07:28:15 am

Throw a set of "049", or "781" casting number heads on that bottom end and 500hp is easy to get.