12-13-2013, 04:23 PM | #1 |
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454 heads
Anyone have any idea what heads come on a stock 86 454 in a C30? Mainly just square or oval port is what im curious about. was thinking of ordering a new intake.
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12-13-2013, 04:40 PM | #2 |
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Re: 454 heads
Oval port
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12-13-2013, 04:53 PM | #3 |
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Re: 454 heads
Cool thanks. Kinda thought they might be but its been awhile since i drug out my mortec saved web pages.
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12-13-2013, 07:23 PM | #4 |
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Re: 454 heads
Peanut port, though an oval intake, I've read, will work.
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12-13-2013, 09:15 PM | #5 | |
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Re: 454 heads
Quote:
Oval ports until mid 70's....then small oval(peanut) ports |
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12-13-2013, 11:22 PM | #6 |
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Re: 454 heads
my truck is an 83 and it has 049 large ovals, i dont think peanuts started until 85 or 86
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12-13-2013, 11:43 PM | #7 |
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Re: 454 heads
Sounds like i need to find an excuse to put on a different set of valve covers so I can get the casting numbers. Lol
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12-14-2013, 01:55 AM | #8 |
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Re: 454 heads
mid 80's to 1990 "Peanut" ports
http://www.mortec.com/bbc.htm However mismatched manifolds work well with the smaller ports.. http://www.carcraft.com/techarticles...d/viewall.html |
12-14-2013, 10:16 AM | #9 |
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Re: 454 heads
Oh hey mortec put the site back up. I did not know that!! Cool.
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12-21-2013, 01:07 PM | #10 |
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Re: 454 heads
I thought this was a quite informative article on big block heads.
http://www.cartechbooks.com/techtips...bigblockchevy/ |
12-22-2013, 01:23 PM | #11 | |
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Re: 454 heads
Quote:
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