Helix Bore Throttle Body Spacer 87-95 Chevy GMC 7.4 454 Big Block

Air Delivery

$59.99

$79.99

Helix Bore
All Hardware Included
Improves Gas Mileage and Torque
Quick and Easy Installation
Fits 1988-2005 Chevy/GMC with 7.4l
1" Thick 6061 Aluminum

Developed to enhance off-idle torque from 800 rpm to approximately 3,000 rpm, Helix Bore design spins the incoming air charge as it passes through the throttle body spacer. This spinning action boosts the velocity of the incoming air and contributes to better atomization of the air/fuel mixture as the air charge enters the combustion chamber. The end result is more part-throttle torque, improved mid-range power, and overall combustion efficiency for better fuel economy.