KB Performance, forged piston kit 1340 Shovel. +.030"

Forged piston set. 9.0:1 compression ratio with 112cc cylinder head.
Piston weight 416 gr.
Piston pin weight 97 gr.
Piston pin diameter .791" / with offset.
Cylinder head type: Dome with -52.7cc.
Compression height 1.285".
Diameter 3.498".
Carrera 4.250".
Conrod length 7.440".
Cylinder length 5.330".
All KB forged pistons are made from 4032 alloy, an 11% silicon alloy formed in a forge press. Forging the aluminium provides superior strength and structural integrity at a molecular level, after which it is fully machined. The combination of this alloy and the forging process allows the piston to flex under detonation or pre-ignition, offering the best resistance to cracking. Although 4032 has a low expansion rate, it is still higher than that of cast Hypereutectic. Therefore, KB forged pistons will require a piston-to-wall clearance of approximately .001". Pistons are sold in sets, complete with gudgeon pin retaining rings, gudgeon pins and piston rings.
Note: All KB forged pistons come equipped with offset gudgeon pins / piston pins. The piston has a front and rear section and must be installed in the correct position. Consult the installation instructions provided with the piston kit before installation.


Specifications


Brand
KB Performance Piston


Application
79-84 1340cc Shovel (NU)


Sales unit
Set


Material
Aluminium


Packaging weight
1.327 kg


HS Code
84099100


Motorcycle family
BIG TWIN, FX, SOFTAIL, TOURING


Original name
KB Performance, 1340 Shovel forged piston kit. +.030"