Aeroflow Welsh Plug Kit Suit Holden V8 253, 304, 308, Brass Material Oil They're forged from aerospace alloy

They're forged from aerospace alloy and heat-treated prior to thread rolling and machining

AF4210-85891BLK

The lower the micron level

The Holley 12-803BP fuel pressure regulator features 3/8" NPT in/out ports and a 3/8" NPT return port

AF4030-34575

Aeroflow Welsh Plug Kit Suit Holden V8 253, 304, 308, Brass Material Oil They're forged from aerospace alloyAF3000 1004 Holden V8 253, 304, 308 Welsh Plug Kit Brass Material These Aeroflow Performance Welsh plug kits are designed for sealing up the casting core holes in your engine block. The expansion plugs help protect against cracks caused by the pressure of frozen coolant and in regular operation will ensure that all vital fluids stay in the engine, where they belong. These complete engine block freeze plug kits include brass Welch plugs and steel oil