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1963-1972 GM Truck LS Conversion Kit


1963-1972 GM Truck LS Conversion Kit
Purchase 1963-1972 GM Truck LS Conversion Kit
  • 1963-1972 GM Truck LS Conversion Kit

  • $529.00

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Your 1963-1972 C/K Truck & Blazer LS Swap Foundation by MuscleRods

Achieve vibration free performance and precise drivetrain alignment for your LS conversion in 1963-1972 GM Truck (C/K Jimmy) with this MuscleRods kit. Precision mounts accommodate T56, 4L60E, 4L80E and 6L80E transmissions without floor tunnel modifications while supporting high clearance and LH8 oil pans for a reliable installation made in the USA.

MuscleRods LS Engine Swap Kit for 1963-1972 C/K-10/C/K-15 and 1969-1972 Blazer K5/Jimmy

Installing an LS engine into a 1963-1972 GM C/K truck or Blazer Jimmy requires precision mount points and clear transmission fitment and the 1963-1972 GM Truck LS Conversion Kit brings both in one convenient package. Its precision machined brackets and crossmember support T56, 4L60E, 4L80E and 6L80E transmissions without altering the tunnel. Designed by MuscleRods for home mechanics and pro builders alike, this kit also retains factory ground clearance and maintains drivetrain alignment to ensure a smooth, vibration free ride.

Precision Drivetrain Alignment for a Smooth Ride

The LS conversion kit employs precision-machined motor and frame brackets to maintain the ideal driveline angle, preventing torsional stress on U-joints and minimizing chassis vibration. By preserving the correct geometry between the engine and transmission, this setup ensures consistent power delivery under load and reduces premature component wear. Accurate alignment also translates to quieter operation, allowing drivers to enjoy the torque and power of an LS engine without intrusive driveline noise. This attention to detail is critical for both daily drivers and off-road enthusiasts seeking reliable performance.

Seamless Transmission Fitment without Tunnel Modifications

Designed to accommodate T56, 4L60E, 4L80E, and 6L80E transmissions, the crossmember and mounting hardware offer a perfect fit inside the original transmission tunnel. The kit eliminates the need for cutting or reshaping the floor structure when installing the 4L60E or 4L80E, preserving factory appearance and structural integrity. Side brackets and a dedicated transmission mount place the gearbox in the optimum position, simplifying installation for DIY mechanics and professional shops alike. The result is a plug-in upgrade path that saves time and maintains the classic underbody profile of your GM truck.

Oil Pan Compatibility for Optimal Ground Clearance

This conversion package supports multiple oil pan configurations, including the high clearance and LH8 styles, enabling users to tailor clearance to their driving needs. High clearance pans open up additional space between the sump and off-road obstacles, ideal for lifted trucks or uneven terrain. When stock ground clearance is sufficient, the LH8 pan option offers a low-profile sump that aligns closely with the factory frame rails. These choices allow builders to balance performance and practicality without custom fabrication.

Comprehensive Kit Components Ensuring Durable Assembly

The all-in-one kit includes two motor mounts, two frame brackets, a transmission crossmember, side brackets, a polyurethane transmission mount, and a complete bolt kit, providing every fastener and support piece required for installation. Precision-cut steel brackets resist flex under heavy loads, while the polyurethane transmission mount dampens gear-shift shock and isolates vibration. Manufactured in the USA from proven materials, each component is engineered for long service life and straightforward assembly. Home mechanics and professional builders alike benefit from a system that arrives ready to install, backed by quality control at every stage of production.

Count on MuscleRods for precise fit and lasting reliability. This is not an add on but a more robust kit where you can select each component to suit your needs, so consider our Complete LS Swap Kits - LS Kit Builder.

Fitment

  • 1963-1972 Chevy C/K-10
  • 1963-1972 GMC C/K-15
  • 1969-1972 Chevy Blazer K5
  • 1970-1972 GMC Jimmy

Specifications

  • SKU: LSX9
  • Swap Engine: LS
  • Body Type: GM Truck (C/K Jimmy)
  • Brand: Muscle Rods
  • Compatible Engine Models: Most Gen III/IV LS Engines (e.g., LS1, LS2, LS3, LM7, LQ4, LQ9, 4.8L, 5.3L, 6.0L, 6.2L) when used with a compatible High Clearance Oil Pan or Cast Aluminum Retro Style Oil Pan configurations suitable for GM trucks.
  • Compatible Transmissions: T56, 4L60E, 4L80E, 6L80E (4L60E/4L80E without tunnel modifications; others may require adjustments).
  • What's Included:
    • (2) Motor Mounts
    • (2) Frame Brackets
    • (1) Transmission Crossmember
    • (2) Crossmember Side Brackets
    • (1) Polyurethane Transmission Mount
    • (1) Bolt Kit

Key Features

  • Maintains correct drivetrain angle to prevent vibrations
  • Fits T56, 4L60E, 4L80E, and 6L80E transmissions without tunnel modifications
  • Compatible with high clearance oil pan for optimized performance
  • Accommodates LH8 oil pan when ground clearance permits
  • Specifically engineered for 1963-1972 GM 1/2 ton trucks
  • Proudly designed and manufactured in the USA

Benefits

  • Enjoy a vibration-free ride with correct drivetrain alignment
  • Install modern transmissions easily without altering the tunnel
  • Optimize performance with high clearance oil pan compatibility
  • Support LH8 oil pan use when ground clearance allows
  • Guarantee seamless fit on 1963-1972 GM 1/2 ton trucks
  • Rely on durable, precision-crafted parts made in the USA

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