Holley Metering Block Gasket - For Model 4150 57125BK Precision centerless-ground and thread-rolled to

Precision centerless-ground and thread-rolled to Mil-S-8879 specs

Rear twist-on ring mount design makes mounting simple

Rocker Switch

preventing a loss of oil pressure and possible bearing damage

500 in Bolt Pattern

Holley Metering Block Gasket - For Model 4150 57125BK Precision centerless-ground and thread-rolled toHolley Metering Block Gasket 108 100 For Model 4150 3 Circuit 2 Per Package 100 Bulk Available 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 engine are dominating the LS scene as well. Holley's