ACCEL 4049 - Spark Plug Wire Set-8mm-Super Stock-Graphite Core-Yellow w/HEI Style Boots fits 78-86 V8 - SBC 5.0/5.7L AP 7L Gen III Hemi engines

7L Gen III Hemi engines had smaller intake ports & these adapters allow the installation of Intake manifolds w/ the larger ports to fit on these Early engines

1994-1995 Chevrolet K1500 350 CID

4 V8 1968 GMC K35/K3500 Pickup 307/5 V8 1968 - 1969 GMC K35/K3500 Pickup 396/6

4 V8 1997 - 2003 Ford F-150 330/5

testing proves that they are no more powerful than the factory coils that are found on 1

ACCEL 4049 - Spark Plug Wire Set-8mm-Super Stock-Graphite Core-Yellow w/HEI Style Boots fits 78-86 V8 - SBC 5.0/5.7L AP 7L Gen III Hemi enginesOverview: ACCEL's SuperStock 4000 series spark plug wire sets are designed to upgrade an OE ignition system for high spark delivery levels for street driven applications. The 450 degree F rated silicone jacket is extruded over a tightly woven, rugged fiberglass braid. The braid is applied over high dielectric strength EPDM (Ethylene Propylene Diene Monomer) inner insulation for ignition wire performance that exceeds SAE specifications. Features: 8mm