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[GMCnet] What are the recomended heads for the 455? [message #311689]

Thu, 29 December 2016 20:09

BobDunahugh

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Registered: October 2010
Location: Cedar Rapids, IA

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Casting #, and what year cars did they come on.

Bob Dunahugh
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Re: [GMCnet] What are the recomended heads for the 455? [message #311690 is a reply to message #311689]

Thu, 29 December 2016 21:13

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

Use the J heads. They have a large J cast on them. They have hardened valve seats so don't need inserts.
I don't have the year info on my iPhone. When I get to my computer I'll send you a message.
Emery Stora

> On Dec 29, 2016, at 7:09 PM, Bob Dunahugh wrote:
>
> Casting #, and what year cars did they come on.
>
> Bob Dunahugh
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> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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