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1973-1987 2WD GM Truck LS Conversion Kit


1973-1987 2WD GM Truck LS Conversion Kit
Purchase 1973-1987 2WD GM Truck LS Conversion Kit
  • 1973-1987 2WD GM Truck LS Conversion Kit

  • $519.00

    SKU: LSX10

  • Select Transmission:  

Simplify Your LS Swap on 73-87 C/K & 73-91 Blazer/Jimmy with MuscleRods

With robust steel mount brackets engineered for exact drivetrain angles, MuscleRods delivers a vibration free ride and hassle free installation that preserves the vintage C/K and Blazer profile without any transmission tunnel modifications. This all inclusive Engine Swap Kit for 1973 to 1987 Chevy C/K and 1973 to 1991 Blazer/K5 Jimmy includes mounts and hardware for T56, 4L60E and 4L80E transmissions, supports a high clearance oil pan, and is built in the USA for enduring quality.

Complete MuscleRods LS Engine Swap Kit for 1973-1987 GM C/K Trucks and 1973-1991 K5 Blazer/Jimmy

Swapping an LS powerplant into a 1973 through 1987 GM C/K or K5 Blazer calls for the 2WD GM Truck LS Conversion Kit, engineered to position your engine precisely at the factory frame angle. Steel brackets and mounts are CNC laser cut to maintain the LS crank centerline and preserve driveline geometry, preventing vibration and u-joint wear. In addition, the design supports T56, 4L60E and 4L80E transmissions without altering the transmission tunnel and uses existing frame holes with grade eight hardware for a bolt in installation. MuscleRods has included clearance for deep oil pans up to four inches thick in the frame rails while ensuring proper pickup alignment on uneven surfaces.

Precision CNC Laser Cut Bracketry for Accurate Engine Placement

The conversion kit's core strength lies in its CNC laser cut steel engine mounts, engineered to align the LS crank centerline with the original GM C/K frame angle. By matching these angles without the need for shims or guesswork, driveline geometry remains true, which directly reduces vibration and prevents universal joint stress. Installers benefit from a bolt-in process that uses existing frame holes and grade eight hardware, eliminating welding and ensuring consistent clamp load. This attention to precise fitment translates into longer bearing life and a smoother power transfer for vintage truck enthusiasts.

Direct Fit Transmission Crossmember for Multiple Gearboxes

This kit accommodates T56, 4L60E and 4L80E transmissions with a purpose-built crossmember and bracket set that bolts into factory openings without modifying the tunnel. Maintaining the stock transmission tunnel retains chassis strength and avoids cutting or filler plates, while the included hardware pack delivers correct clamp loads for secure attachment. By cradling each gearbox at its intended mount points, the design preserves proper driveshaft angles and minimizes wrap under load. Technicians gain hours back on the install and avoid complex fabrication, all while safeguarding the truck's structural integrity.

Optimized Oil Pan Accommodation for Reliable Lubrication

Aware of the popularity of deep oil pans, the brackets are spaced to clear pans up to four inches tall, supporting both high clearance and retro style options without modification. The engine is set slightly forward and raised to protect the sump from road obstacles, while preserving internal pickup alignment and baffle function. This ensures consistent oil flow under hard cornering or steep terrain, preventing starvation and heat-related issues. Builders can confidently pair any compatible LS pan with these squarebody trucks, knowing lubrication integrity remains uncompromised.

Polyurethane Isolation System with Reinforced Steel Brackets

Instead of conventional rubber, this kit employs polyurethane isolators that resist heat, oil and solvent exposure while controlling engine movement with minimal deflection. All brackets are formed from thick gauge steel in the USA and feature strategic gusset plates at stress points to prevent deformation under repeated torque cycles. The result is a stout support network that keeps engine motion in check and vibrations to a minimum. Each mount arrives with professional grade eight bolts and washers, ensuring the assembly remains rock solid for miles of reliable performance.

Count on MuscleRods for precise engineering and reliable fitment. For a more robust kit where you can build this same kit but customize components to suit your needs, see our Complete LS Swap Kits - LS Kit Builder.

Fitment

  • 1973-1987 Chevy C/K-10
  • 1973-1987 GMC C/K-15
  • 1973-1991 Chevy Blazer K5
  • 1973-1991 GMC Jimmy

Specifications

  • SKU: LSX10
  • 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 suitable for GM Squarebody trucks.
  • Compatible Transmissions: T56, 4L60E, 4L80E (direct fitment without tunnel modifications); Other transmission types may require minor adjustments.
  • What's Included:
    • (2) Motor Mounts
    • (2) Frame Brackets
    • (1) Transmission Crossmember
    • (2) Outer Crossmber Brackets
    • (1) Polyurethane Transmission Mount and Spacers
    • (1) Installation Hardware Pack

Key Features

  • Preserves drivetrain angle to minimize vibration
  • Compatible with T56, 4L60E, and 4L80E transmissions
  • Installs without modifying the transmission tunnel
  • Optimized for high-clearance oil pan installations
  • Seamless LS engine swap retaining vintage truck appearance
  • Made in the USA for lasting quality

Benefits

  • Ensures a vibration-free ride for comfortable driving
  • Works with multiple transmissions for flexible upgrade options
  • Simplifies installation by eliminating transmission tunnel modifications
  • Supports high-clearance oil pan for enhanced ground clearance
  • Delivers modern engine performance while preserving the vintage look
  • Built in USA for superior durability and reliable quality

This Item Assigned to Category and Also Fits:

Description

Complete MuscleRods LS Engine Swap Kit for 1973-1987 GM C/K Trucks and 1973-1991 K5 Blazer/Jimmy

Swapping an LS powerplant into a 1973 through 1987 GM C/K or K5 Blazer calls for the 2WD GM Truck LS Conversion Kit, engineered to position your engine precisely at the factory frame angle. Steel brackets and mounts are CNC laser cut to maintain the LS crank centerline and preserve driveline geometry, preventing vibration and u-joint wear. In addition, the design supports T56, 4L60E and 4L80E transmissions without altering the transmission tunnel and uses existing frame holes with grade eight hardware for a bolt in installation. MuscleRods has included clearance for deep oil pans up to four inches thick in the frame rails while ensuring proper pickup alignment on uneven surfaces.

Precision CNC Laser Cut Bracketry for Accurate Engine Placement

The conversion kit's core strength lies in its CNC laser cut steel engine mounts, engineered to align the LS crank centerline with the original GM C/K frame angle. By matching these angles without the need for shims or guesswork, driveline geometry remains true, which directly reduces vibration and prevents universal joint stress. Installers benefit from a bolt-in process that uses existing frame holes and grade eight hardware, eliminating welding and ensuring consistent clamp load. This attention to precise fitment translates into longer bearing life and a smoother power transfer for vintage truck enthusiasts.

Direct Fit Transmission Crossmember for Multiple Gearboxes

This kit accommodates T56, 4L60E and 4L80E transmissions with a purpose-built crossmember and bracket set that bolts into factory openings without modifying the tunnel. Maintaining the stock transmission tunnel retains chassis strength and avoids cutting or filler plates, while the included hardware pack delivers correct clamp loads for secure attachment. By cradling each gearbox at its intended mount points, the design preserves proper driveshaft angles and minimizes wrap under load. Technicians gain hours back on the install and avoid complex fabrication, all while safeguarding the truck's structural integrity.

Optimized Oil Pan Accommodation for Reliable Lubrication

Aware of the popularity of deep oil pans, the brackets are spaced to clear pans up to four inches tall, supporting both high clearance and retro style options without modification. The engine is set slightly forward and raised to protect the sump from road obstacles, while preserving internal pickup alignment and baffle function. This ensures consistent oil flow under hard cornering or steep terrain, preventing starvation and heat-related issues. Builders can confidently pair any compatible LS pan with these squarebody trucks, knowing lubrication integrity remains uncompromised.

Polyurethane Isolation System with Reinforced Steel Brackets

Instead of conventional rubber, this kit employs polyurethane isolators that resist heat, oil and solvent exposure while controlling engine movement with minimal deflection. All brackets are formed from thick gauge steel in the USA and feature strategic gusset plates at stress points to prevent deformation under repeated torque cycles. The result is a stout support network that keeps engine motion in check and vibrations to a minimum. Each mount arrives with professional grade eight bolts and washers, ensuring the assembly remains rock solid for miles of reliable performance.

Count on MuscleRods for precise engineering and reliable fitment. For a more robust kit where you can build this same kit but customize components to suit your needs, see our Complete LS Swap Kits - LS Kit Builder.

Fitment

Fitment

  • 1973-1987 Chevy C/K-10
  • 1973-1987 GMC C/K-15
  • 1973-1991 Chevy Blazer K5
  • 1973-1991 GMC Jimmy
  • Compatible Transmissions: T56, 4L60E, 4L80E (direct fitment without tunnel modifications); Other transmission types may require minor adjustments.
Features
  • Preserves drivetrain angle to minimize vibration
  • Compatible with T56, 4L60E, and 4L80E transmissions
  • Installs without modifying the transmission tunnel
  • Optimized for high-clearance oil pan installations
  • Seamless LS engine swap retaining vintage truck appearance
  • Made in the USA for lasting quality
Benefits
  • Ensures a vibration-free ride for comfortable driving
  • Works with multiple transmissions for flexible upgrade options
  • Simplifies installation by eliminating transmission tunnel modifications
  • Supports high-clearance oil pan for enhanced ground clearance
  • Delivers modern engine performance while preserving the vintage look
  • Built in USA for superior durability and reliable quality
What's Included
  • (2) Motor Mounts
  • (2) Frame Brackets
  • (1) Transmission Crossmember
  • (2) Outer Crossmber Brackets
  • (1) Polyurethane Transmission Mount and Spacers
  • (1) Installation Hardware Pack
Specifications
  • SKU: LSX10
  • Brand: Muscle Rods
  • Swap Engine: LS
  • Body Type: GM Truck (C/K Jimmy)