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Vehicle Info NeededSwirl Torque TBI Spacer 1987-90 Chevy/GMC Truck/SUV/Motorhome 7.4L
Ships on 09/16/2026
Lowest Price Guarantee- Swirl Torque TBI Spacer
- 1987-90 Chevy/GMC Truck/SUV/Motorhome 7.4L
Kit contains: TBI Spacer, Gaskets, Mounting Bolts
Trans Dapt's Throttle Body Injection (TBI) Spacers and adapters are available in three styles to improve the quality of engine air/fuel mixture for increased intake manifold volume. Trans Dapt TBI spacers provide better throttle response, fuel efficiency increases of 8 percent or more and significant torque gains throughout the rpm range These TBI spacers are designed for easy bolt-on installation and are 50-state legal (EXCLUDING 2539, 2639, 2737, 2739), and covered by The C.A.R.B. Executive Order #D-578.
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Swirl-Torque TBI Spacers
The slotted port design of Trans Dapt's Swirl-Torque TBI Spacers creates a vortex for better air/fuel mixture that improves low-to-mid range torque. More torque results in unsurpassed power gains, smoother acceleration, and better fuel economy.
Wide Open TBI Spacers
Wide Open spacers are designed for wide open throttle use and towing applications. With the open plenum design, these TBI spacers promote improved mid-to-high end torque.
Smooth Bore TBI Spacers
Throughout the entire RPM range, these Smooth Bore TBI spacers increase plenum volume and air velocity that results in horsepower and torque gains.
