Fits Nissan RB25 / RB30 to Ford C4 Automatic Steel Bellhousing That latter characteristic translates into

That latter characteristic translates into increased ground

They are manufactured from brass and include thread-in brass jet extensions (where noted)

and it's also one of the most neglected parts of regular maintenance

This casting process creates a much more uniform and robust cylinder head

thick flanges that are heavy enough to maintain header integrity

Fits Nissan RB25 / RB30 to Ford C4 Automatic Steel Bellhousing That latter characteristic translates intoSpeedmaster conversion steel bellhousing couples the Nissan RB25 RB30 engine to your Ford C4 automatic transmission. This gives you the ability to run a much stronger and reliable transmission to your high performance engine.