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

That latter characteristic translates into increased ground

which include heat-treated studs with rolled threads and special nuts with built-in serrated washer faces

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

thick flanges that are heavy enough to maintain header integrity

and are a terrific value

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.