Jesel Sportsman Shaft Mount Roller Rocker Arm - 1.50 Ratio - Small Block Chevy (Set of 16) Molecule Labs These headers fit both manual

These headers fit both manual and auto transmission models

Black Anodized CNC Machined Aluminum ComponentsVehicle Applications: Ford F-150: 2014-2019Vehicle Applications: Ford F-150: 2014-2019

Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installations

Designed specifically for the Holley 351W Hi-Ram Manifold P/N 300-242 or 300-241

Jesel Sportsman Shaft Mount Roller Rocker Arm - 1.50 Ratio - Small Block Chevy (Set of 16) Molecule Labs These headers fit both manualProduct Description: Rocker Arm Sportsman Shaft Mount 1. 50 Ratio Full Roller Aluminum Natural Small Block Chevy Set of 16 Dan Jesel realized early on that the success and demand for his high end valvetrain components was in part dependent on huge valve lifts, unheard of spring pressures and rpm that most thought was impossible. So he started on a 10 year quest to perfect the roller lifter. After nearly nine years of R&D and endless testing, Dan