Holley Performance Announces LS/LT Swap Kits and Headers for 1988-98 Chevy/GMC OBS Trucks


Over the last several years, the OBS (old body style) 1988-98 Chevy and GMC trucks have been picking up interest in the hot-rodding community. Particularly, in the LS swap world, where LS and GEN-V LT engines are the powerplant of choice for street/strip trucks and those looking to take a pickup through the corners in the pro-touring world.

Of course, hot-rodders have been implementing old school tricks and off-brand components to make these swaps possible, but it’s time for a quality manufacturer to enter the fray, and that’s where Holley Performance comes in. They’ve expanded on their vast catalog for LS/LT speed parts and components with these LS/LT headers and mounting brackets for 1988-98 C/K1500 GM trucks.

Official Release:

Hooker BlackHeart GM LS and Gen-V LT Engine Mounting Brackets for 1988-1998 GM C1500/K1500 (2WD and 4WD 1/2-ton Truck)


Hooker BlackHeart application-specific LS/LT swap engine mounting brackets eliminate the installation guesswork and compatibility uncertainty that comes with using universal swap plate mounting methods. These mounting brackets are available with forward-bias, rearward-bias, or dual engine mounting positions that optimize powertrain placement based on user-selected transmission, transfer case and driveshaft compatibility/retention priorities.

The factory transmission crossmember is re-used with these mounting brackets (cost savings since driveshafts and crossmember are re-used).

Factory LS Vortec exhaust manifolds can be used along with the engine mounting brackets and are required to support a street-legal engine change (with catalytic converters). Off-road racing applications can use Hooker BlackHeart BH13266 LS Swap Headers or BH 13272 LT Swap Headers. Mounts feature a black powder-coated finish and include (2) engine mounting brackets, attaching hardware and instructions.



  • Black powder-coated finish
  • Bolt-in mounting brackets for 1988-98 C/K1500 2WD and 4WD GM trucks
  • Factory transmission crossmember is re-used with these mounting brackets

Hooker BlackHeart LS/LT Swap Headers for 1988-1998 GM C1500/K1500 (2WD and 4WD Trucks)


These Hooker BlackHeart LS/LT Swap Headers fit 1988-1998 Chevrolet and GMC C1500/K1500 2WD/4WD trucks. These mid-length headers provide enough flow for stock and mid-level engine performance, and are made from 304 stainless steel for strength & corrosion resistance. These headers are one part of a fully engineered swap system for the GMT400-series trucks.

  • Constructed from 304 stainless steel
  • Direct fit for 1988-98 C/K1500 2WD and 4WD GM trucks
  • Intended for LS and LT swap 1988-98 C/K1500 2WD and 4WD GM trucks

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Rick Seitz

Rick Seitz is the owner and founder of AutoCentric Media, and has a true love and passion for all vehicles. When he isn’t tuning, testing, or competing with the brand’s current crop of project vehicles, he’s busy tinkering and planning the next modifications for his own cars.

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