Seller notes

Supertech Bronze Manganese Valve Guides For Nissan Silvia S13, S14, S15 SR20DET Engine (6mm Intake Valve Stems & 7mm Exhaust Valve Stems) Intake x 8 -- GDE-NSR6-I -- 10.03mm Outer Diameter -- 40mm Length Exhaust x 8 -- GDE-NSR7-ET -- 11.03mm Outer Diameter -- 43mm Length Supertech Valvetrain has proven in a variety of motorsports applications from mild 150 horsepower street engines to 1000+ Horsepower race cars. Don't be fooled by lesser quality valvetrain components, stick with Supertech and ge...

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