Holley EFI Throttle Body Adapter - Elbow - GM LS-Series to Dominator Mounting Flange 91609189 Big GM inlet thread is

Big GM inlet thread is 7/16"-20

Arc Lighting solutions are designed for ease of installation

This Level Is Adequate To Stiffen The Cylinder Walls

This results in quicker starts

Holley EFI Throttle Body Adapter - Elbow - GM LS-Series to Dominator Mounting Flange 91609189 Big GM inlet thread isFuel Injection Throttle Body Adapter 105mm Throttle Body Opening 100 degrees Mounting Angle Fits Intakes w 4500 Flange designed to use the included o ring for sealing The 4500 square flange pattern allows Forward, Sideways or Rearward Throttle Body Mounting LS3 Style MAP Sensor Mounting (4) Vacuum Ports (1) Each 1 4" NPT & 3 8" NPT & (2) 1 8" NPT (2) Throttle Linkage Mounting Bosses Cast aluminum finish Overall Height 6. 4" Product Description: Intake