Premium Construction: One-piece stamped 16-gauge steel top and bottom for unmatched durability

Thread: 3/8-24

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#PSHC-267 1/4-20 x 2-1/2 length Polished Chrome Socket Head Allen Bolt - 10 Pack

flat head allen bolts which sit flush

Intake Manifold for Bendix/Keihin Butterfly Carburetors 1940-54 Harley-Davidson OHV Models Brand_Boyer Bransden Premium Construction: One-piece stamped 16-gaugeThis custom intake manifold allows the direct installation of Bendix and Keihin (butterfly) carburetors on 1940 1954 Knuckleheads and Panheads without adapters or cylinder head modifications. Made extra wide (97 mm), which is excellent when you build an engine with longer cylinders or stroker plates. Requires to be shortened to match the respective situation.