Author Topic: 1984 454 is what generation?  (Read 4881 times)

Offline 454c10

  • Newbie
  • Posts: 50
  • Newbie
1984 454 is what generation?
« on: February 03, 2015, 07:09:23 PM »
What generation is a 1984 454? And what heads didbit have peanut or?

Offline Engineer

  • Senior Member
  • ****
  • Posts: 1402
Re: 1984 454 is what generation?
« Reply #1 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.
2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

Dad of an Eagle Scout, and a Life Scout

Offline 454c10

  • Newbie
  • Posts: 50
  • Newbie
Re: 1984 454 is what generation?
« Reply #2 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???

Offline Engineer

  • Senior Member
  • ****
  • Posts: 1402
Re: 1984 454 is what generation?
« Reply #3 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.
2002 Chevy 2500HD 4x4 8.1/ZF6sp RC/LB
2001 Chevy 2500HD 4x4 6.0/4L85E EC/SB
1997 Chevy Blazer 4x4
1994 Chevy K-2500 4x4 C6P 5.7/4L80E
1979 Chevy K-30 4x4 4sp 4.10
1977 Chevy K-30 4x4 4sp 4.10 454

Dad of an Eagle Scout, and a Life Scout