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Flange - GM
5" Bore Spacing BBC Header Flange - 3/8" Thick 304 Stainless -2-3/8" Primaries
LSX Header Flange - 3/8" Thick Mild Steel. Round Port for 2" Primaries.
LSX Header Flange - 3/8" Thick Stainless. D Port for 1-7/8" Primaries.
LSX Header Flange - 3/8" Thick Stainless. D Port for 2" Primaries.
LSX Header Flange - 3/8" Thick Stainless. Round Port for 2-1/8" Primaries.
GM LSX DR Header Flange. 3/8" Thick Stainless. D-Shaped Port for 2"
GM LSX DR Header Flange. 3/8" Thick Stainless. D-Shaped Port for 2-1/8"