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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

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MuscleRods LS Swap Platform for 73-87 C/K & 73-91 Blazer

For a hassle-free LS upgrade in your GM Truck (C/K Jimmy), the MuscleRods LS Swap Platform kit preserves precise drivetrain angles to minimize vibration and avoids transmission tunnel modifications for a perfect fit. Engineered in the USA for compatibility with T56, 4L60E, and 4L80E transmissions, it supports a high clearance oil pan and retains original styling while delivering modern engine performance.

MuscleRods LS Engine Swap Kit for 1973-1987 GM C/K-10/15 and 1973-1991 Blazer K5/Jimmy

When fitting a modern LS engine into a 1973-1987 GM C/K chassis, achieving correct positioning can slow any restoration project. This Engine Swap Kit from MuscleRods combines robust engine and frame mounts with a dedicated transmission crossmember to deliver precise drivetrain alignment. It supports direct installation of T56, 4L60E and 4L80E transmissions without altering the tunnel structure. Tailored for 2WD C/K 10 and C/K 15 pickups as well as Blazer K5 and GMC Jimmy models, it also accommodates deep sump oil pans to preserve ground clearance on uneven terrain.

Preserving Drivetrain Geometry in LS Conversions

Mount geometry preserves the original drivetrain angle to minimize vibration after installation. When swapping a modern LS engine into a classic C/K or K5 frame, even small misalignments can lead to driveline imbalance and premature wear. These engine and frame mount brackets are engineered to position the crank centerline at the factory angle, maintaining smooth power delivery and long component life. This alignment not only enhances ride comfort but also reduces stress on universal joints and transmission bearings.

Transmission Crossmember Design for Direct Fitment

The kit's crossmember and outer brackets support T56, 4L60E and 4L80E transmissions without modifying the tunnel. This custom crossmember bolts directly to the frame rails, eliminating the need to reshape sheet metal or relocate the tunnel structure. By retaining the factory floor layout, installation time is reduced and structural integrity remains intact. Integrated mounting points ensure consistent transmission alignment under load, preserving drivetrain efficiency and reducing noise.

Accommodating Deep Sump Oil Pans and Ground Clearance

Designed for easy integration of high volume oil pans, this kit clears deep sump designs while preserving off road ground clearance. The engine mounts position the block forward and higher where necessary, creating space for oil pans up to four inches deep. This configuration ensures reliable oil pickup under hard cornering or uneven terrain conditions. Enthusiasts can choose from Moroso or retro style cast aluminum pans to suit both performance and vintage appearance.

Durable American Made Mounts and Hardware

All engine mounts, frame brackets and hardware are produced in the United States from premium steel and polyurethane, ensuring robust support and resistance to oil and heat. The use of poly in the transmission mount reduces deflection compared with rubber, maintaining precise positioning under torque. Outer crossmember brackets feature reinforced gussets to withstand repeated load cycles while the hardware pack contains all fasteners needed for a complete installation. This comprehensive kit delivers consistency and reliability for both professional builders and home mechanics.

Trust MuscleRods for precise alignment and reliable support. For a more robust kit rather than an add on where you can 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

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