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80" Evo Modification for 1996 Softail

18K views 7 replies 3 participants last post by  springer-  
#1 ·
Looking for some answers here folk's. What are the results when adding a 3 5/8"((+0.010") ) piston to an existing 3 1/2 " bore 80" motor(i.e compression, etc.)(Honing?). The current motor has headwork and a sub-500" lift cam. The current motor also has an upgraded ignition & Thunderheader.
 
Discussion starter · #3 ·
Here's the data on the pistons Springer!...JE Pistons for EVO Big Twin 3-5/8" (+0.010") Bore with Standard Stroke. I know the jugs will need honing, but the cases?
 
Discussion starter · #6 ·
That's what I was thinking. It becomes a larger bore 88" when you bore the cylinder's and the cases. I wasn't sure about the cases, but I was certain about the cylinders. What happens when you add a stroker flywheel to the mix here. Or is it even possible with an 80" on top of the additional bore.. Thank you for the comments posted here Springer!

Best,

Glenz