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■SHORT M8 / M10
The bore bearing surface finish method helps promote effective oil flow and to maintain adequate lubrication for both the bearings and other moving parts
it is possible to set the size and shape of the piston topland freely
■SHORT M12(φ24)
Tomei TITANIUM VALVE SPRING RETAINER SET For SUBARU EJ 163203 CRANKSHAFT ■SHORT M8 / M10SPECIAL SURFACE TREATMENT, IMPROVED DURABILITY & LIFE. CONTROL & STABLIZE VALVE JUMPS & VALVE BOUNCES!! An indispensable part for any high powered, high speed engine. The combination of high lift camshafts and these oversized valves will greatly increase the flow rate for fuel mixture to enter the combustion chamber. When upgrading the Valves to cope with the new high lift camshafts it is also a requirement to upgrade the Valve Springs to suit the new
