KB Performance, 88" to 95" big bore piston set. +.020"
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88" to 95" big bore conversion.
Used with stock heads and cylinders.
By boring the stock cylinders from 3-3/4" to 3-7/8" big bore size engine capacity will increase from 88" to 95".
High compression (pop-up).
10.5:1 CR.
Piston weight 437gr.
Piston pin weight 97gr. / Head type: Dome.
Dome -11.2cc / Compression height 1.270".
Bore 3.875" / Stroke 4.000".
Rod length 7.667" / Cylinder length 4.938".
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.
