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Revised cooling system passageways Siamese bore Increased bulkhead material Threaded core and galley plugs (straight thread port plugs with O-ring) Requires special length 1/2" head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads
• Only suits 38mm External Wastegate AF9552-1000
146-480-11
KNRU-3103HBK
One part number contains all the plugs needed to seal the water & oil chambers in your LS engine Brass & galvanized steel material resist corrosion to ensure years of trouble free service
Brass Welch Plug Kit PIPE-125-BR Oil Coolers Revised cooling system passageways SiameseBrass Welch Plug KitSuit Big Block Ford 429 460 PIPE 125 BR PE 125 BR Complete engine block Welch plug and gallery plug kits include brass Welch plugs and steel oil gallery plugs but do not include cylinder head plugs.
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