Vibrant Performance J-Style Oxygen Sensor Adapter - 18 mm x 1.50 in Male Thread to 18 mm x 1.50 in Female Thread - Stainless Rocker Cover Breather One piece design is easier 8 mm Valves ATM5763 SMK340H Size:4X-Large (67-68)

One piece design is easier to install and even less prone to leak

Bassett produces the strongest

Two primary options: a 12 3/4-inch flywheel (153 teeth) where the nose cone will have two attachment bolt holes across from each other (inline) and a 14-inch flywheel (168 teeth) where the attachment bolt holes will be offset (diagonal)

1978-1985 Oldsmobile Cutlass Supreme

Fits B&M MegaShifter right hand drive

Vibrant Performance J Style Oxygen Sensor Adapter 18 mm x 1.50 in Male Thread to 18 mm x 1.50 in Female Thread Stainless Rocker Cover Breather One piece design is easier 8 mm Valves ATM5763 SMK340H Size:4X Large (67 68) One piece design is easier to install and even less prone to leak Bassett produces the strongest