KB Performance, 1340 Evo B.T. forged piston kit. STD - 84-99 1340cc Evo B.T. (NU) 526103 Replacement reference 67842-60 adapter ring

Replacement reference 67842-60 adapter ring

Unique air filter kits feature a 5-hole mounting system which allows Twin Cam derby covers (not included) to be bolted on as the outer cover

Available in RAW denim

right pocket with handy pen stall · Two interior pockets

Includes 2 battery cables: 1x 11" long and 1x 16" long

KB Performance, 1340 Evo B.T. forged piston kit. STD - 84-99 1340cc Evo B.T. (NU) 526103 Replacement reference 67842-60 adapter ringForged piston set. 9. 5: 1 CR with 80cc head. Piston weight 365gr. Piston pin weight 97gr. Piston pin dia. . 792" offset. Head type: Dome with 8. 5cc. Compression height 1. 375". Bore 3. 4980". Stroke 4. 250". Rod length 7. 440". Cyl. length 5. 550". All KB forged pistons are made from 4032 alloy, a 11% silicon alloy that is formed in a forging press. Forging aluminum gives a superior strength and structural integrity on a molecular level, after which