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Monte Carlo/G-Body LS Swap and Conversion Parts for Sale

Looking to LS or LT swap your Monte Carlo? PSI can get you set up with everything you need to get your ride 'Wired up and fired up!". From our Harnesses Made in the USA with high quality wire and different loom options to suit your needs, Our PCM tuning service where we can get you set up with a base tune for your engine and transmission, Engine & Transmission Mounts, Dakota Digital gauges, American Autowire Chassis Harnesses, Accessory Brackets, Oil Pans, ETC. 

  • 1986-88 Chevy Monte Carlo RTX Instrument System

  • 1978- 88 Chevy Monte Carlo HDX Instruments

  • 1978- 88 Chevy Monte Carlo, 1978- 87 Chevy El Camino, Malibu And Caballero VHX Instrument System



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