BBC Freeze Frost Plugs Big Block Chevy 396 427 402 427 Steel Expansion

BBC Freeze Frost Plugs Big Block Chevy 396 402 427 454 Steel Made in the USA

ENGINETECH EXPANSION PLUG KIT CHEVROLET BBC 396 402 427 454 1965 - 1990

Expansion Plug Kit - for GM & Chevrolet 366 396 402 Big Block 427 454 - PK3

Enginetech Engine Expansion Plug Kit PK3; Steel for Chevy 396-454 BBC

Engine Expansion Plug Kit ENGINETECH, INC. PK74

Enginetech Engine Expansion Plug Kit PK3B; Brass for Chevy 396-454 BBC

Enginetech Engine Expansion Plug Kit PK185;