Description: Here is the Intake Manifold Part Number. Pontiac used various Part Numbers and even the same numbers on different parts. No, even though the part number may indicate a 389 or 421 Superduty Intake Manifold, it ain't Aluminum, Duh!
Here is the Intake Manifold Part Number. Pontiac used various Part Numbers and even the same numbers on different parts. No, even though the part number may indicate a 389 or 421 Superduty Intake Manifold, it ain't Aluminum, Duh!
