Part Description
KB Performance, 1340cc Evo B.T. pop-up piston kit. +.010"
Pop-up high compression. 10.5:1 CR. Piston weight 360gr. Piston pin weight 97gr. Head type: Dome 0.200". Dome -18cc. Compression height 1.375". Bore 3.4980". Stroke 4.250" (4-1/4"). Rod length 7.440". Cyl. length 5.550". 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 compression ring will need additional clearance. See instructions.
