Fitments
79-84 80" Shovel; 66-78 74" Shovel with 4-1/4" stroke flywheels (NU)
Part Description
S&S, 88" (1436cc) 3-5/8" big bore cylinder & piston kit
Fits all 79-84 stock 1340cc Shovelheads. Fits 66-78 1200cc Shovels custom equipped with 4-1/4" stroke flywheels (standard 1200 is 3-31/32" stroke). Comes complete with std length gloss black 3-5/8" Big Bore cylinders, forged pistons, rings, wrist pins, head/base gaskets and cylinder head bolts and cylinder base nuts. 7-3/4:1 Compression ratio. This kit combines power from the larger capacity and a very good engine life through the stock 1340cc Harley stroke and moderate compression ratio. Note: Crankcase spigots must be bored for 3-5/8" cylinders.
