Big Block Long Exhaust Port Nut (4041150)

These long exhaust nuts are required when using many different Chrysler original exhaust manifolds. When using our #1390041 Exhaust manifolds, they require 2 per manifold (4 per complete engine).  They are 3/8" Fine thread internally.

These long exhaust nuts are required when using many different Chrysler original exhaust manifolds. When using our #1390041 Exhaust manifolds, they require 2 per manifold (4 per complete engine).  They are 3/8" Fine thread internally.

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