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02-06-2020, 09:12 PM | #1 |
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Join Date: May 2010
Location: Suttons Bay, Mich.
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Domed aluminum 21 stud heads
I have a set of the aluminum heads with waterpump mount for the 21 stud and they are for flat pistons. I think they are 34-35? what years did they make them for domed pistons? I have seen them but not sure of the years. I would like them for my ‘36 LB engine but seem to be coming up empty with answers.
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02-06-2020, 09:52 PM | #2 |
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Location: Plainview, Texas
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Re: Domed aluminum 21 stud heads
48 and 68 prefix heads are for domed pistons, 40 prefix is for flat pistons.
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02-06-2020, 09:52 PM | #3 |
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Join Date: May 2010
Location: southeastern Michigan
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Re: Domed aluminum 21 stud heads
Both 48- and 68-prefix aluminum heads are for use with domed pistons. The numerous varieties of 40- prefix heads are for use with flat top pistons.
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02-06-2020, 10:07 PM | #4 |
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Re: Domed aluminum 21 stud heads
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