Board index Flathead Power-Technical Questions, Answers, and Suggestions Big Twin Flatties Head Bolts

Head Bolts

Post Sat Jan 26, 2013 10:08 am

Posts: 1
I am getting ready to purchase a set of aluminum heads for my 42U. Can someone tell me what the difference is between the bolts for iron and aluminum heads?

Post Sat Jan 26, 2013 7:41 pm

Posts: 1676
Location: Interlaken, NY USA

The headbolts for aluminum heads have an extended head on them to make it easier to reach them with a wrench to tighten. Threads, length of threads, same as iron head headbolts.

Post Mon Jan 28, 2013 11:35 am

Posts: 543
Location: Wa, USA
I have a brand new, never used set of S&S aluminum heads that I am not going to use.

PM me for more info if you are interested.

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