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1973-1977 A-Body LS Conversion Kit


1973-1977 A-Body LS Conversion Kit
Purchase 1973-1977 A-Body LS Conversion Kit
  • 1973-1977 A-Body LS Conversion Kit

  • $529.00

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1973-1977 A-Body LS Swap Power by MuscleRods

Achieve effortless LS integration in your 1973 to 1977 A Body with MuscleRods precision mounts and brackets fitting 4L60E and 4L80E transmissions without tunnel modifications. Engineered to maintain correct drivetrain angle, accommodate a high clearance oil pan and reduce vibration, this kit delivers reliable performance backed by USA craftsmanship.

MuscleRods LS Engine Swap Kit for 1973-1977 A-Body Models

For GM A-Body vehicles built between 1973 and 1977, the 1973-1977 A-Body LS Conversion Kit simplifies swapping in a modern LS powerplant by supplying engine mounts, frame mounts, and transmission support hardware in one package. It fits 4L60E and 4L80E transmissions without any floor pan modifications and accommodates high clearance oil pans to maintain proper ground clearance. MuscleRods engineers have precision machined each component in the USA to ensure proper drivetrain angle and minimize vibration for a refined driving feel.

Optimized Drivetrain Alignment for Smooth Operation

The 1973-1977 A-Body LS Conversion Kit is engineered to maintain correct drivetrain angle through precisely positioned motor and frame mounts. By holding the engine and transmission in perfect alignment, the design minimizes vibration and reduces stress on universal joints and mounting points. This careful attention to geometry results in a notably smoother driving experience and helps preserve the integrity of your drivetrain over time. Whether you're cruising on open roads or tackling spirited back-road runs, the optimized alignment translates to a refined feel behind the wheel.

Plug and Play Compatibility Across GM A Body Applications

Designed for seamless integration into a range of classic GM models, this kit fits 1973-1977 Chevelle, Monte Carlo, El Camino, Laguna and other A Body vehicles without any floor pan modifications. It supports 4L60E and 4L80E transmissions right out of the box, cutting down on labor and eliminating guesswork during installation. The mounting geometry also accommodates a high clearance oil pan, ensuring adequate ground clearance for varied driving conditions. This plug and play approach lets enthusiasts focus on assembly rather than custom fabrication.

Precision Machined Components Crafted in the USA

Every part in this conversion kit is machined in the USA to exacting tolerances, reflecting a commitment to durability and performance. The motor mounts, frame brackets and transmission crossmember are cut and drilled on state-of-the-art equipment to ensure repeatable fitment and a rock-solid foundation for your LS engine. Combined with a polyurethane transmission mount and a comprehensive hardware pack, these components deliver reliable, long-term operation under the rigors of modern driving. The result is a robust foundation that stands up to daily use and spirited outings alike.

For a fully adaptable foundation count on MuscleRods and explore our Complete LS Swap Kits - LS Kit Builder which offer a more robust and customizable solution that lets you select the exact components to suit your build.

Fitment

  • 1973-1977 Chevy Chevelle
  • 1973-1977 Chevy Monte Carlo
  • 1973-1976 Chevy Laguna
  • 1973-1977 Chevy El Camino
  • 1973-1977 GMC Sprint
  • 1973-1977 Buick Regal
  • 1973-1977 Oldsmobile Cutlass
  • 1973-1977 Pontiac Grand Am
  • 1973-1977 Pontiac Grand Prix

Specifications

  • SKU: LSX20
  • Swap Engine: LS
  • Body Type: A-Body
  • Brand: Muscle Rods
  • Compatible Engine Models: Most Gen III/IV LS Engines (e.g., LS1, LS2, LS3, 5.3L, 6.0L) when used with a compatible high clearance oil pan and appropriate intake for A-Body hood clearance.
  • Compatible Transmissions: 4L60E, 4L80E (without tunnel modifications); Other transmission types may require additional adjustments.
  • What's Included:
    • (2) Motor Mounts
    • (2) Frame Brackets
    • (1) Transmission Crossmember
    • (2) Crossmember Outer Brackets
    • (1) Polyurethane Transmission Mount and Spacers
    • (1) Installation Hardware Pack

Key Features

  • Broad compatibility with GM A-Body models from 1973 to 1977
  • Compatible with 4L60E and 4L80E transmissions with no tunnel modifications
  • Designed for use with high-clearance oil pan
  • Maintains proper drivetrain angle to minimize vibrations
  • Precision-engineered for enhanced durability and reliability
  • Crafted with precision in the USA

Benefits

  • Fits multiple 1973-1977 A-Body cars for easy upgrades
  • Saves labor by fitting 4L60E/4L80E without tunnel modifications
  • Guarantees high-clearance oil pan fit for optimized performance
  • Minimizes vibrations for a smoother driving experience
  • Delivers durable, reliable performance through precision engineering
  • Backed by USA craftsmanship for quality you can trust

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