KB Performance, 1340 Evo B.T. forged piston kit. STD - 84-99 1340cc Evo B.T. (NU) 526103 There’s a zipper and push

There’s a zipper and push buttons on the front and zippers on the side pockets and inner pocket

8" (20cm) long multi-functional crimping tool

Note: See 517257 for upgrade K&N filter element

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

Front top motor mount

KB Performance, 1340 Evo B.T. forged piston kit. STD - 84-99 1340cc Evo B.T. (NU) 526103 There’s a zipper and pushForged 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