Aeroflow Performance Weld-On O2 Sensor Bung Stainless Steel BBC 7hp starter is recommended for

7hp starter is recommended for 400cu + engines and up to 15:1 compression ratio

SWIVEL FEMALE -10AN

Big Block Chev Starter Motor

8mm) or 3/4" (19mm) outside diameter tubing

5 inch Back Space

Aeroflow Performance Weld-On O2 Sensor Bung Stainless Steel BBC 7hp starter is recommended forAF991SS Weld On O2 Sensor Bung Aeroflow Performance features a range of different styles of high quality weld on bungs and plugs to suit any M18 x 1. 5mm oxygen sensors. The oxygen sensor bung is a must have accessory for installing your wide band oxygen sensor to your exhaust pipe. Especially If you are making custom headers, or just require a O2 Sensor in your system for data logging, engine management or test equipment. Works with Bosch LSU4. 2,