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#1 |
Gonzo Wheeler
![]() Join Date: Feb 2004
Location: Dirty Bay...Baytown
Posts: 2,772
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454 head Identification
Outside of pulling the valve covers....I know I'm lazy....actually I am about to pull them this weekend...
What is the best guess on whether I have open or closed port heads on my Suburban.... I think I remember the exhaust ports being square as opposed to being round...... Just wondering?
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#2 | |
Cooler'na13floorelevator
![]() ![]() ![]() Join Date: Dec 2002
Location: Kermit, TX
Posts: 6,117
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I'm not sure if the BBs are the same, but the SBs have a marking cast into the end of the head. Like a triangle or two humps, etc. Most likely you just have the plain low perf. peanut port heads if it's a truck engine.
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#3 |
Gonzo Wheeler
![]() Join Date: Feb 2004
Location: Dirty Bay...Baytown
Posts: 2,772
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OK the only info I can find out about these heads is the following from Moretec.
Casting # 14081045 78-87 truck oval(round) port ~ open chamber I know these are non~HP as well as non~peanut heads Does anyone have a book or an online source other than Mortec? |
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