82-92 Spohn Performance Tubular K-Member (LSX Swap)


Model Number: 703-LSX
Spohn Performance

82-92 Spohn Performance Tubular K-Member (LSX Swap)

Spohn Performance’s tubular k-member sets a new, higher standard of performance and quality. When they designed their k-member, they had several goals in mind. One was to provide the performance capabilities needed for the toughest race tracks, another was to provide the strength and durability required for the demands of a daily driven vehicle. Spohn’s k-member provides substantial weight savings and frees up a lot of room in the engine bay for drag race customers, but it also provides the strength, rigidity, and durability for road race, autox, and daily driver customers as well….. all in one package!

Spohn’s tubular k-member features boxed a-arm mounts for maximum rigidity and side load support. These k-members are gusseted in critical areas to ensure that a weld never breaks. They decrease overall weight, and provide much more room for large tube headers, turbo systems, etc.

Spohn’s k-member will accept stock a-arms, or for additional weight loss and performance enhancement we also offer tubular a-arms. K-members are available set up for stock style coil springs or in a coil over version that eliminates the upper spring perch for additional weight savings. Spohn’s jig was built around the factory k-member providing for an exact fit and factory exact dimensions. Every detail of the factory k-member was incorporated, including brake line mounts (there’s no “zip tying” of the brake lines with our k-member) and optional front k-member brace mounts.

Build Specifications and Features:

  • 1.50″ x .120″ wall seamless DOM tubing – one piece formed front hoop
  • 1.25″ x .120″ wall seamless DOM tubing a-arm mount tubes
  • CNC cut and formed 3/16″ thick steel mounts and gussets
  • OEM style button head locating pins
  • LS1 A/C compressor clears k-member with no modifications
  • Motor mounts are designed to clear all LS1 A/C lines
  • Welded in a special built rotary jig to insure an exact fit and precision welds entirely in the flat position
  • Includes (6) new 12mm Grade 10.9 k-member mounting bolts and heavy flat washers
  • Includes all four brake line mounts and new brake line mounting tab bolts and nuts
  • Durable and brilliant powder coated finish, your choice of red or black

Options: Select your options in the drop down option boxes below. K-members are available set up for a stock style coil spring, or in a coil over version that eliminates the upper spring perch. This k-member is for those who are swapping in any Gen III LSX based engine (LS1, LS2, LS6, LS7, etc.), this version will also require our Part #971 LSX swap bolt on motor mount bushing stands. We also provide the option of having front k-member brace mounts installed. All 1986-1992 cars were factory equipped with a triangular brace on each side of the front of the k-member to reinforce the front subframe at the steering box mount. These braces reduce flex and cracking of the front subframe and are a recommended addition for any street driven car. If you own a 1982-1985 car that was not factory equipped with the k-member braces, we also offer new triangular braces, make your choice below.

Available in 4130N Chrome Moly: The ultimate in bullet-proof lightweight strength, 4130N chrome moly tubing construction! Same as above, but constructed from 1.50″ x .083″ and 1.25″ x .095″ 4130N chrome moly tubing. Make your choice below.

Note: Due to the variety of options we offer, k-members are built to order, and very labor intensive to build – Please allow 3-6 weeks for shipment.

Weight 1 oz




Spring Type


K-Member Front Brace Mounts


K-Member Front Braces


Include Bolt-On LSX Motor Mounts



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SKU: 703-LSX Category: