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The use of A-CS Tech
The frequency and location of the perforation patterns in the cores creates significant sound scattering in the mid frequencies
Each Race Series system is developed in accordance with noise compliance regulations imposed by most racing sanctioning bodies worldwide
reducing the likelihood of breakage
Reliable design for confidence
Wiseco 4713M09000 Piston Kit - Standard Bore 89.92mm, 12.2:1 Compression chemical-engine-oil-15w60 The use of A-CS TechBore: 89. 92mm Compression: 12. 2: 1 Compression Sizing: Standard Bore SPECIFICATIONS. Displacement: 398cc. Bore Standard: 90. 00mm. Bore Actual: 90. 00mm. Bore Oversize: STD. Stroke: 62. 60mm. Compression Ratio Actual: 12. 2: 1. Note: Cylinder deglazing required. ITEM CONTENTS. 35433XR 90. 00 mm Ring Set. CW20 ROUND WIRE PIN LOCKS 20MM (PAIR). S549 PistonPin 20mm x 2. 002in. NonChromed TW All Wiseco Pistons are forged from high silicon, low expansion
