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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 · #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
 
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?