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Rebuild Bottom End 1970s 74in Shovelhead

Started by tinkering, May 07, 2020, 08:32:59 AM

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fbn ent

May 11, 2020, 03:17:51 PM #75
"see the above... S&S built a 100 inch Evo just for the 4 speed frame...
While Harley built a 4-speed frame, just for the Evo engine... 1985 and 1986...''

Yeah..knew that..
'02 FLTRI - 103" / '84 FLH - 88"<br />Hinton, Alberta

Burnout

May 11, 2020, 04:56:52 PM #76
The short stroke (4") is what makes a 4x4 fit in a 4 speed frame, it uses shorter cylinders.

Anything with a 5" stroke is going to need tall cylinders.
They don't call me Ironhead Rick just because I'm "hard headed"
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