The considerable angle of the LS, LT, and LT4 intakes can cause issues routing inlet plumbing and clearance to aftermarket accessory brackets. One option is to mount the throttle body upside-down, BUT this changes the air flow to the intake and can cause poor cylinder distribution and drivability issues.
The 717-15 levels the throttle body for these swap applications without changing the flow the GM design intended. Other four-bolt intakes with routing issues can also benefit from this adapter.
Low RPM correct Low RPM with throttle body upside-down
LT car intake blade orientation shown above. Other LS and LT are reversed but the same effect applies.
• Maintains proper throttle body blade orientation.
• Eliminates drivability issues associated with inverting the throttle body
• Allows clearance to aftermarket accessory brackets
• No harness rerouting or extending required
• Allows use of cable operated & other throttle bodies on Gen-V 5.3L Intakes
• Works with both truck and car LT intake bolt patterns
• Works with all 4-bolt LS intake bolt patterns
Throttle body applications:
• Works with up to 95mm intakes and throttle body openings. Does not work with larger openings.
• Works with common LS and LT 104 x 70mm bolt pattern throttle bodies.
• Will not work with 98 x 70mm LT truck throttle bodies.
• Adapts LT 5.3L Truck intakes to Common LS 104 x 70mm Bolt Pattern - fits most LS & LT Throttle Bodies.
• Works with Holley 92/95mm Hi-Ram and Mid-Ram intakes.
Maintains proper throttle body blade orientation
Eliminates drivability issues associated with inverting the throttle body
Allows clearance to aftermarket accessory brackets or other clearance and routing issues
No harness rerouting or extending required
Works with both truck and car LT and LT4 intake bolt patterns
Works with all 4-bolt LS intake bolt patterns
Works with up to 95mm intakes and throttle body openings (Does not work with larger openings)
Works with common LS and LT 104 x 70mm bolt pattern throttle bodies
Adapts common LS 104 x 70mm bolt pattern throttle bodies to LT 5.3L truck intakes
Works with Holley 92/95mm Hi-Ram and Mid-Ram intakes
Allows Use of Cable Operated Throttle Body on Gen-V LT Truck Intake Manifold
Accessory Drive Style
GM Gen V LT1
Throttle Body Adapter
Limited 90 Day
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.