aFe Power Silver Bullet Throttle Body Spacer - 1" Thick - Clear - Small Block Chevy 931114 1973-1974 Buick Century

1973-1974 Buick Century

1984-1991 GMC B6000

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Silver-Vain Powder-Coated Flexplate Safety Shield for Chevrolet

aFe Power Silver Bullet Throttle Body Spacer - 1" Thick - Clear - Small Block Chevy 931114 1973-1974 Buick CenturySilver Bullet throttle body spacers create turbulence in the air flow just prior to entry into the engine increasing horsepower, torque and improving throttle response. Silver Bullet throttle body spacers are constructed out of durable 6061 T6 billet aluminum and use a unique serrated helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. Serrated Helix Design: The serrated