Valve Seat 4/ Set - Mopar Chrysler BB 383 440 | Intake +0.010 | (3065) Speedmaster H-beam connecting rods are

Speedmaster H-beam connecting rods are one of the strongest connecting rods available

CNC-machined from high-tensile billet steel for strength and precision

Kit includes adapter plate to permit use of certain square bore style carburetors

The air flowing under the plenum provides a cooler charge for the incoming air with less heat transfer from the engine

Valve Seat 4/ Set - Mopar Chrysler BB 383 440 | Intake +0.010 | (3065) Speedmaster H-beam connecting rods areThese replacement valve seats are just like the originals. Made from premium materials and built to exacting tolerances, they replace your existing worn or damaged valve seats.