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Transform your 1988-98 Chevy or GMC OBS truck with high-quality LS swap and conversion parts, designed for seamless engine upgrades and enhanced performance. Whether you're converting to an LS or Gen V LT engine, these precision-engineered products ensure a smooth installation, offering everything from motor mounts and transmission cross members to exhaust headers and digital gauge clusters.
Perfect for both 2WD and 4WD OBS trucks, our extensive range of parts simplifies the swap process, allowing you to build a high-performance truck that meets your specific needs.
OBS stands for "Old Body Style," referring to the boxy design of Chevy and GMC trucks produced from 1988 to 1998.
Yes, we offer parts compatible with both LS and Gen V LT engine swaps, including motor mounts, headers, and cold air intakes.
LS swap kits are typically designed for specific generations of the Camaro (e.g., 1st Gen, 2nd Gen, etc.), so it’s important to choose a kit that matches your Camaro’s model year. Most kits are available for popular models like 1967-69, 1970-81, and newer generations.
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Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. These harnesses include the Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines as well as Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC3 Engines. All PSI Harnesses are Made in the USA. In addition to wiring harnesses, PSI carries Holley Products, Vintage Air A/C, Dakota Digital Gauges, HPTuners and PCM programming, Fuel Pump Kits, Engine Sensors, Extension Harnesses, Replacement GM connector pigtails and a complete line of hardware to complete your conversion needs!
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2029 Route 88
Brick, NJ 08724
ph. 732-276-8589 Mon-Fri: 8:00am to 6:00pm ET
customerservice@psiconversion.com
sales@psiconversion.com
techsupport@psiconversion.com