MuscleRods LS Engine Swap Kit for 1968-1972 A-Body Chevelle El Camino GTO/Tempest Cutlass/442 Skylark
Whether you are fitting an LS into a classic Chevy Chevelle, El Camino, Pontiac GTO/Tempest, Oldsmobile Cutlass/442 or Buick Skylark, this MuscleRods 1968-1972 A Body LS Conversion Kit addresses installation challenges with precision machined components and laser cut crossmember geometry. It positions an LS engine and 4L60E or 4L80E transmission at the ideal drivetrain angle to limit vibration and avoid any transmission tunnel modifications while accommodating a high clearance oil pan. Included: Two motor mounts, two frame brackets, one transmission crossmember, two outer support brackets, one polyurethane transmission mount with spacers, and one installation hardware pack. Made in the USA for consistent fit and tolerance control.
Precision Engineered Fitment
The 1968-1972 A-Body LS Conversion Kit offers a dedicated mounting assembly exclusively for the GM A-Body platform. Each bracket is CNC formed from thick gauge steel, guaranteeing consistent hole placement and plate thickness to maintain factory frame geometry. This precision allows bolt on installation without shaving or bracket modification. The design accommodates a high clearance oil pan to protect the sump and improve ground clearance, enabling custom exhaust routing and retaining original floor pan structure. Manufactured in the USA, each component undergoes rigorous quality checks to ensure proper weld integrity and corrosion resistance, setting the stage for a reliable LS installation that respects classic sheetmetal contours.
Optimized Drivetrain Alignment
Maintaining the proper driveline pitch is vital to reduce vibration, bearing stress, and driveline hop under load. This kit secures the LS engine at a factory recommended angle so the driveshaft aligns directly with the rear axle pinion. That alignment lowers stress on universal joints and helps preserve transmission output bearings, extending service intervals while reducing noise and harshness. In addition, the system accepts both 4L60E and 4L80E transmissions without cutting or reshaping the tunnel, preserving cabin structure and original brace points, and streamlining installation in factory floor pans.
MuscleRods Mount Integration
The conversion kit is engineered to interface directly with MuscleRods engine mounts for reliable powertrain support and consistent alignment. By using match drilled mount pads and high grade rubber isolators, the system locks the engine into position with minimal movement while damping vibration under heavy loads. This partnership standardizes engine placement and driveline angle across every build, eliminating guesswork and alignment cycles. It also allows quick swaps and maintenance without custom adapters, making it ideal for repeated test fits or multi vehicle shops.
American Craftsmanship
Every bracket and crossmember is cut, formed, and welded in US facilities, demonstrating true American craftsmanship. Personnel review each weld with ultrasonic and visual inspection before applying a durable powder coat finish for protection against moisture, chemicals, and road debris. Sourcing domestic steel and components ensures tight supply control and faster fulfillment compared to imports. The attention to production detail and quality oversight produces consistent results every time, offering builders peace of mind and a solid platform for LS power upgrades.
Trust MuscleRods to deliver precise alignment and durable mounts for your LS swap in any 1968 to 1972 A-Body GM car. For a more robust kit where you can build this same kit with your choice of parts, consider our Complete LS Swap Kits - LS Kit Builder.