General Motors option code

MC1  — HD 3-speed Transmission, LS3 engine only

MC1 (HD 3-speed Transmission, LS3 engine only): a General Motors factory option code recorded on 1 model across 1969–1972, with installs and price where a source states them.

1 model · 3 model years · 3 sources

Orange 1969 Chevrolet Chevelle SS 396 two-door hardtop with a black vinyl roof and black side stripe, front three-quarter, with SS 396 grille and fender badges and SS wheels
1969 Chevrolet Chevelle SS 396 sport coupe in Hugger Orange with a black vinyl top Photo: MercurySable99, CC BY-SA 4.0, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1969 Chevrolet Chevelle and Malibu SS Heavy Duty 3-speed Transmission RPO $79 15,748 Reported
1971 Chevrolet Chevelle and Malibu SS HD 3-speed Transmission, LS3 engine only RPO $132 548 Reported
1972 Chevrolet Chevelle and Malibu SS HD 3-speed Transmission, LS3 engine only RPO $135.20 272 Reported

Every row traces to the source it links from on that model's own year page; this table only collects them in one place.