Earls -6 AN Male to 7/8-20 Male - 991943ERL single-plane-intake-manifolds 6L V8 1970 - 1972

6L V8 1970 - 1972 GMC K25/K2500 Pickup 402/6

7 V8 1977 - 1978 GMC G25 400/6

NOTE: Does NOT include Lower line that runs from the Y block to the pump

Detailed installation instructions are included

Earls -6 AN Male to 7/8-20 Male - 991943ERL single-plane-intake-manifolds 6L V8 1970 - 1972Overview: Blue Anodized Lightweight Aluminum Construction. Typical Application Holley Reman Dual Feed carburetor. Features: Blue Anodized Aluminum Made in the USA Available for Any Plumbing Situation And Many Custom Applications. Application: Year Make Model Submodel Engine Size Universal Specs: Adapter AN Size ( A ) 6 AN MALE Adapter Port Size ( B ) 7 8 20 Holley Quadrajet Adapter Type Carb Adapter Angle Straight Brand Earls Emission Code 5 Finish