Holley Accelerator Pump Discharge Nozzle - 0.042 in Hole Size Straight Type 3459C4 Bolts to the block and

Bolts to the block and water pump

Specific Application fitments for GM

E550 2011-2010

Engineered and manufactured specifically for performance applications

FW 270H-R10

Holley Accelerator Pump Discharge Nozzle - 0.042 in Hole Size Straight Type 3459C4 Bolts to the block andAccelerator Pump Discharge Nozzle 0. 042 " Hole Size Straight Type Includes 2 Gasket. Nozzle sizes . 040" and larger include a hollow nozzle screw. Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every 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