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vwinnovator Samba Member
Joined: July 11, 2005 Posts: 1555 Location: Still doing it in the back of your VW
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Posted: Wed Jun 29, 2016 7:36 am Post subject: AMC vs. reworked OG type IV heads |
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Have a couple sets of 2.0L type IV oval exhaust factory heads look to be in pretty good shape, but leary of seat issues with type IV heads.
Better option to go with new AMC's or have the OG's reworked?
pros and cons?? |
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Clatter Samba Member

Joined: September 24, 2003 Posts: 7770 Location: Santa Cruz
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Posted: Wed Jun 29, 2016 2:42 pm Post subject: Re: AMC vs. reworked OG type IV heads |
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Used OG 2.0 bus heads are almost always toast.
High-end shops like HAM won't even look at them as cores.
1.7 heads from a 914 (or occasionally a bus) can be rebuilt, or even used as-is if they are in really, really good shape.
1.8 heads are more fragile, and usually cracked through the exhaust port floor.
2.0 bus heads almost always live a very, very hard life.
2.0 914 heads can be worth rebuilding, because of what they are, but will always be fragile.
Supposedly, AMC has corrected their hardware quality issues,
But I can't verify that.
I can verify that their old stuff was no bueno in the hardware department.
Taking AMC castings, and loading them up with the good stuff, is really the only way to know what you got.
If you are talking a customer motor, where your name is on it, i wouldn't go any other way.
My own stuff - I'll take chances..
Hope this helps.
No real black/white answer here.. _________________ Bus Motor Build
I have excellent news for the world...
There is no such thing as patina.
It does not exist! |
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busdaddy Samba Member

Joined: February 12, 2004 Posts: 52818 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Wed Jun 29, 2016 3:05 pm Post subject: Re: AMC vs. reworked OG type IV heads |
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^X2^, what he said.
Knowing what you plan on doing with them may help, pushing around a light bug is a whole lot different than shoving a 2 ton bus up a long hill. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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Слава Україні! |
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Multi69s Samba Member

Joined: January 24, 2006 Posts: 5559 Location: Lefty, CA
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