351 Cleveland 48 IDF weber intake

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351 Cleveland intake manifold for 48 IDF weber style carburetors. To cover the lifter valley the factory-style valley tray will need to be used. Intakes will need to be printed in an appropriate material to handle heat and fuel like pa6-cf. The intake ports are designed to match a ported 2v head (port to match valley tray). Intake port o rings-2-1/4" ID, 2-1/2" OD, 1/8" Width. Carb o rings- 2" ID, 2-1/4" OD, 1/8" Width. Heat inserts are m8 x 8mm for carb mounting. Heat inserts are #6-32 for top air horn flange