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.
Patent - www.holley.com/patents/
Benefits:
• 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
Intake applications:
• 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.
Features:
- Billet Aluminum
- 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
Will not work with 98 x 70mm LT truck throttle bodies
Installation Notes:
Will not work with 98 x 70mm LT truck throttle bodies
About Holley Performance Products
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!
