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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:  

73-87 C/K & 73-91 Blazer/Jimmy LS Swap Kit by MuscleRods

Preserving exact drivetrain angles to eliminate vibration, the MuscleRods LS Swap Kit installs in your GM Truck (C/K Jimmy) without altering the transmission tunnel for a precise, snug fit. Engineered in the USA for compatibility with T56, 4L60E and 4L80E transmissions, it accommodates an oil pan with extra clearance, retains original truck style and delivers modern LS performance with lasting reliability.

MuscleRods LS Engine Swap Kit for 1973-1991 GM C/K-10/C/K-15 and K5 Blazer/Jimmy Trucks

For restorable C/K and Blazer projects, the 1973-1987 2WD GM Truck LS Conversion Kit is engineered to secure accurate LS engine and transmission placement without modifying the floor panel. By integrating robust engine and frame mounts with a dedicated transmission crossmember, this kit supports T56, 4L60E and 4L80E installations while preserving original chassis geometry. MuscleRods designed the mounting brackets to clear deep sump pans and maintain ground clearance on rough roads. Installation follows factory mounting points and eliminates the need for tunnel reshaping, letting builders focus on wiring and final tuning.

Precision Engineered Drivetrain Alignment

The kit's motor and frame brackets are machined to position the crank centerline at the factory angle, preserving the original drivetrain geometry for LS engine swaps into classic C/K and Blazer frames. Even minimal deviation from this angle can introduce vibration and accelerate wear on u-joints and transmission bearings. By maintaining the correct orientation, installers achieve consistent vibration reduction and enjoy a smoother power delivery that extends the life of driveline components. This careful alignment also translates to improved ride comfort on both pavement and rough terrain.

Transmission Crossmember Designed for Direct Fitment

The included crossmember and outer brackets allow bolt-in installation of T56, 4L60E and 4L80E transmissions without altering the floor panel or transmission tunnel. This design leverages factory mounting points on the frame rails, eliminating the need for sheet-metal reshaping or structural modifications. As a result, builders spend less time on metalwork and retain the original chassis rigidity. Integrated mounting provision keeps the transmission aligned under torque, ensuring efficient torque transfer and reducing driveline noise.

Integration of Deep Sump Oil Pans for Enhanced Ground Clearance

Engine mounts are positioned to clear oil pans up to four inches deep, accommodating high-volume designs such as Moroso or retro style cast aluminum pans. By locating the block slightly forward and higher, this configuration preserves critical ground clearance for off-road use and steep inclines. The extra pan depth supports reliable oil pickup under cornering loads and over uneven terrain, safeguarding the lubrication system during spirited driving or trail duty.

American Made Mounts and Hardware Delivering Durable Support

Every motor mount, frame bracket and hardware component in this kit is manufactured in the USA from premium steel and polyurethane, offering superior resistance to heat, oil and mechanical stress. Polyurethane isolators reduce deflection compared to rubber, maintaining precise engine and transmission placement under load. Reinforced gussets on the crossmember brackets ensure long-term durability, while the comprehensive hardware pack provides fasteners for a complete installation. This domestic build quality delivers reliable performance for professional shops and home garages alike.

Count on MuscleRods for a reliable foundation in your LS project; for a more robust kit that lets you select parts 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

MuscleRods LS Engine Swap Kit for 1973-1991 GM C/K-10/C/K-15 and K5 Blazer/Jimmy Trucks

For restorable C/K and Blazer projects, the 1973-1987 2WD GM Truck LS Conversion Kit is engineered to secure accurate LS engine and transmission placement without modifying the floor panel. By integrating robust engine and frame mounts with a dedicated transmission crossmember, this kit supports T56, 4L60E and 4L80E installations while preserving original chassis geometry. MuscleRods designed the mounting brackets to clear deep sump pans and maintain ground clearance on rough roads. Installation follows factory mounting points and eliminates the need for tunnel reshaping, letting builders focus on wiring and final tuning.

Precision Engineered Drivetrain Alignment

The kit's motor and frame brackets are machined to position the crank centerline at the factory angle, preserving the original drivetrain geometry for LS engine swaps into classic C/K and Blazer frames. Even minimal deviation from this angle can introduce vibration and accelerate wear on u-joints and transmission bearings. By maintaining the correct orientation, installers achieve consistent vibration reduction and enjoy a smoother power delivery that extends the life of driveline components. This careful alignment also translates to improved ride comfort on both pavement and rough terrain.

Transmission Crossmember Designed for Direct Fitment

The included crossmember and outer brackets allow bolt-in installation of T56, 4L60E and 4L80E transmissions without altering the floor panel or transmission tunnel. This design leverages factory mounting points on the frame rails, eliminating the need for sheet-metal reshaping or structural modifications. As a result, builders spend less time on metalwork and retain the original chassis rigidity. Integrated mounting provision keeps the transmission aligned under torque, ensuring efficient torque transfer and reducing driveline noise.

Integration of Deep Sump Oil Pans for Enhanced Ground Clearance

Engine mounts are positioned to clear oil pans up to four inches deep, accommodating high-volume designs such as Moroso or retro style cast aluminum pans. By locating the block slightly forward and higher, this configuration preserves critical ground clearance for off-road use and steep inclines. The extra pan depth supports reliable oil pickup under cornering loads and over uneven terrain, safeguarding the lubrication system during spirited driving or trail duty.

American Made Mounts and Hardware Delivering Durable Support

Every motor mount, frame bracket and hardware component in this kit is manufactured in the USA from premium steel and polyurethane, offering superior resistance to heat, oil and mechanical stress. Polyurethane isolators reduce deflection compared to rubber, maintaining precise engine and transmission placement under load. Reinforced gussets on the crossmember brackets ensure long-term durability, while the comprehensive hardware pack provides fasteners for a complete installation. This domestic build quality delivers reliable performance for professional shops and home garages alike.

Count on MuscleRods for a reliable foundation in your LS project; for a more robust kit that lets you select parts 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)