GM LS1 LS2 LS3 Welsh Plug Kit Steel Material with Plastic Barbell

Big Block Chrysler 383-440 Welsh Plug Kit Brass Material

Small Block Chrysler 273 318 360 Welsh Plug Kit Brass Material

Holden 6 Cylinder 149,161, 173, 179, 186 & 202 Welsh Plug Kit Brass

Holden V8 253, 304, 308, 355 Welsh Plug Kit Brass Material

Big Block Chevy V8 396 427 454 502 Welsh Plug Kit Brass Material

Small Block Chevy 305 307 327 350 400 Welsh Plug Kit Brass Material

Ford V8 302 351 Cleveland Welsh Plug Kit Brass Material

Ford V8 289,302,351 Windsor Welsh Plug Kit Brass Material