S&S, 88" to 97" big bore cylinder and piston kit. Black

Black powder-coated cylinders. No case boring required. With a 3.927" bore, S&S considers this the largest bore that can be used safely with the stock crankcase spigots. Fits 88" Big Twin models with stock 4" stroke and increases displacement to 97". Compression ratio of 9.7:1 with stock 85cc cylinder heads, 10.3:1 with S&S 79cc heads. The forged pistons require no flywheel rebalancing and the valve pockets are enlarged to accommodate larger diameter valves and higher lift camshafts.
Note: S&&S does not recommend boring OEM cylinders to such a large diameter due to the possible loss of structural integrity. Only one oversize piston (917503) is available for this kit.


Specifications


Brand
S&S


Application
99-05 88" Dyna; 99-06 88" FLT/Touring; 00-06 88" Softail (NU)


Sales unit
Kit


Colour
Black


Material
Aluminium


Packaging weight
11.747 kg


HS Code
84099100


Motorcycle family
DYNA, SOFTAIL, TOURING


Original name
S&S, 88" to 97" big bore cylinder & piston kit. Black