Ford SB / Mopar BB 0.507" OD 0.343" ID 2.087" Exhaust Valve Guide these housings tubes are manufactured

these housings tubes are manufactured with

horse power increase of 10-15

Ensure that you have the finest distributor cap available by using one of these Speedmaster distributor caps

This specific retainer is designed to add to the installed height by

They are manufactured from cast aluminum and are offered with breather holes or without any holes

Ford SB / Mopar BB 0.507" OD 0.343" ID 2.087" Exhaust Valve Guide these housings tubes are manufacturedSpeedmaster valve guides are constructed from high quality bronze for durability and wear, and built to exacting tolerances, they replace your existing worn or damaged valve guides. These guides are offered in a variety of diameters to suit your application..