Valve Seat 4/ Set - Chevy BBC 454 | Intake +0.010 | (3021) They feature aluminum construction

They feature aluminum construction

Paper Air Cleaners & Kits also available

Speedmaster cast iron brake calipers are designed for 13" corvette conversion kits made by PCE

Speedmaster extruded aluminum and stainless steel shaft mount rocker system includes steel shafts with pedestals

These Speedmaster connecting rod bearings are just what you need to freshen up your engine

Valve Seat 4/ Set - Chevy BBC 454 | Intake +0.010 | (3021) They feature aluminum constructionThese 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.