They are made of aluminum and feature a natural finish. Hub Thread Size: 3/8-16. Bolt Thread Size: 5/16-18. Hardware Included: Yes. : 1.530 in. : 3.940 in.
Chrysler Mopar BB 413 426 440 HiRise Intake Manifold EFI Version [Satin]
Chrysler Mopar BB 413 426 440 HiRise Aluminum Intake Manifold [Satin]
Chrysler Mopar BB 413 426 440 HiRise Aluminum Intake Manifold [Black]
Chrysler Mopar BB 413 426 440 HiRise Aluminum Intake Manifold [Polished]