General Motors option code

L61  — 230 six, high performance

L61 (230 six, high performance): a General Motors factory option code recorded on 1 model across 1964, with installs and price where a source states them.

1 model · 1 model year · 1 source

Dark green 1964 Chevrolet Chevelle Malibu SS two-door hardtop at an outdoor car show in Australia, front three-quarter, with Chevelle fender script and Malibu SS emblem on the rear quarter
1964 Chevrolet Chevelle Malibu SS sport coupe in dark green Photo: Sicnag, CC BY 2.0, via Wikimedia Commons

Every sourced appearance

Year Model As named that year Price Installs
1964 Chevrolet Chevelle and Malibu SS 230 six, high performance RPO $43.05 64,543 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.