I am doing some research on emission control systems installed on Corvettes in the 70's and have a question on catalytic converters I can't seem to nail down. The first cat converter was introduced on the 1975 model but was it a single bed converter or dual-bed converter. I know they changed in 76 which was used through 79 (dual-bed) and the three way was used in 82. Any help appreciated.
The part number (8998109)is distinctive as well used on only the 75 model year.
The part number (8998109)is distinctive as well used on only the 75 model year.