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optimized dome geometry
the steel nitride/napier xx rings and optimized skirt profiles
these pistons combine lightweight construction with exceptional strength
Upgrade your 1JZ/2JZ engine bay with SpeedFactory's premium titanium intake manifold stud kit
Wiseco K20/24 87
5.5mm Viton Valve Stem Seal Set for Honda K Series (Exhaust) Supertech:Default Title optimized dome geometrySupertech's 5. 5mm Viton valve stem seal set delivers OEM quality sealing for Honda K series exhaust valves. Constructed from premium Viton material, these seals resist high temperature degradation and maintain consistent compression over extended engine operation. The precise 5. 5mm diameter ensures proper fitment on K series cylinder heads without modification. Ideal for rebuilds, performance upgrades, or preventative maintenance on K20, K24, and
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