SBF Dished Piston Set 4.030 Bore - 29.5cc 1985-gmc-jimmy-esi8236059 the O2 sensor locations are

the O2 sensor locations are relocated on the BBK header and mid pipe

625 in Primary - 3 in Collector - Gaskets / Hardware Included - Steel - Natural - Small Block Chevy - GM G-Body 1978-88 - Pair

06 in Long - 12 Point Head - Chromoly - Black Oxide - Ford 8

Mechanical Gauge Senders - Oil Pressure / Fuel Pressure / Water Temperature - Kit

The custom tailpipes feature added clearance and exit in the factory location with large 3

SBF Dished Piston Set 4.030 Bore - 29.5cc 1985-gmc-jimmy-esi8236059 the O2 sensor locations arePiston AutoTec Dished Forged 4. 030 in Bore 1. 5 x 1. 5 x 3. 0 mm Ring Grooves Minus 29. 50 cc Small Block Ford Set of 8