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Bare Small Block Chev 327-350-400 213cc CNC Ported Aluminium Cylinder Heads with 68cc Chamber (Pair)
Will not fit tall injectors on standard manifold only ev6 short style
AF544-10-08BLK
Used with our RWM-010 Battery Isolation Switch
BLACK COATED STEEL PORT PLUG 1/4" NPT Brand_MSD Bare Small Block Chev 327-350-400Black Coated Steel Port Plug 1 4" NPT The NPT (National Pipe Thread) plugs have tapered threads and sealing is done by the threads themselves. Always use a small amount of AeroSeal (AF98 2023) on all NPT threads and tighten until the it stops. These NPT plugs are ideal for sealing up ports and fittings that are unused such as unused holes in your intake manifold, or any open vacuum, coolant, or oil holes. Each plug features an internal hex which