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OEM replacement reference 69749-05 (chrome version)
70-99 BIGTWIN (Excpt Twin Cam)
then brazed using silver
062" AFM (Aluminum Foamet Material)
- Trivalent plating eliminates need for anti-seize
KB Performance, 1200cc B.T. piston kit. +.005" - 41-78 74"/1200cc Knuckle, Pan, Shovel (NU) 519385 OEM replacement reference 69749-05 (chromeCompatible with stock cylinders and heads, gives stock compression ratio. 8. 5: 1 CR. Piston weight 370gr. Piston pin weight 97gr. Head type: Dome 0. 656" Dome 57cc. Compression height 1. 450". Bore 3. 4375" Stroke 3. 969" (3 31 32"). Rod length 7. 440" Cyl. length 5. 330". Comes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. Note: Top
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