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1965-1970 B-Body LS Conversion Kit


1965-1970 B-Body LS Conversion Kit
Purchase 1965-1970 B-Body LS Conversion Kit
  • 1965-1970 B-Body LS Conversion Kit

  • $529.00

    SKU: LSX25

  • Select Transmission:  

MuscleRods LS Swap Foundations for 1965-1970 Chevy Impala B-Body

Precision engineered mounts deliver unwavering alignment and suppress drivetrain vibration during your 1965 to 1970 Chevy Impala LS swap, enabling direct hookup to 4L60E and 4L80E transmissions for a smooth transition. Built by MuscleRods from premium steel in the USA and engineered to clear deep oil pans, this kit ensures durable performance under rigorous driving conditions and years of reliable use.

Complete MuscleRods LS Engine Swap Kit for 1965-1970 Chevy Impala B-Body

Fitting an LS engine and 4L transmission into a 1965-1970 Impala B-Body often runs into clearance issues under the floorboard. The 1965-1970 B-Body LS Conversion Kit solves that by providing precision motor and frame mounts plus a crossmember shaped to match the factory tunnel. This arrangement holds the original driveline angle to cut vibration and reduce stress on U-joints. Installers appreciate how the assembly drops in for 4L60E or 4L80E boxes, clears most GM oil pans and maintains true driveshaft alignment. Crafted in the USA from thick steel plate cut by laser, with solid welds and a durable finish that resists corrosion it withstands rigors of spirited use and preserves fit under stress.

Precision Driveline Alignment with LS Engine Mounts

The motor mounts and frame brackets are machined to sit the LS engine and 4L60E or 4L80E transmission at the original driveline angle. This precise positioning suppresses vibration entering the chassis and extends the life of universal joints by avoiding unwanted stress. Installers can achieve consistent outcomes without repeated shim trials, ensuring smooth torque delivery through the driveshaft. Preserving the factory angle also supports balanced wear on components over time for improved reliability under varied driving conditions.

Laser Cut Steel Construction for Lasting Strength

Each bracket and the crossmember start as thick steel plate cut by laser for sharp tolerances and clean edges. TIG welding joins the sections with minimal distortion, so the assembly maintains its shape even under the heat and loads of spirited driving. A durable powder or enamel finish shields the steel from road debris and moisture, preventing surface corrosion over years of use. Quality control in the USA ensures each weld and joint meets strict standards for structural integrity in high stress applications.

Crossmember Design for Oil Pan Clearance

The transmission crossmember is formed to clear most Gen III and Gen IV LS oil pans without requiring tunnel modifications. By accommodating options such as the Moroso high clearance pan or a cast aluminum retro unit, the kit removes a frequent obstacle in LS installations. Maintaining correct driveshaft alignment preserves optimal lubrication in the differential and avoids binding that can arise from misalignment. This targeted geometry reduces install time and gives builders the freedom to choose popular pan styles with confidence.

Comprehensive Hardware Sets for Simplified Fitment

Rather than sourcing bolts and adapters from multiple suppliers, the kit includes motor mounts, frame brackets, the crossmember with outer supports, a polyurethane transmission mount with spacers, and a full hardware pack. Numbered parts correspond to a clear instruction guide so each element drops into place in the correct sequence. This organization eliminates guesswork during assembly, helping installers complete the swap quickly and accurately. Direct compatibility with 4L60E and 4L80E transmissions means no secondary modifications are needed for these popular gearboxes.

Trust MuscleRods quality and for a more robust kit where you can build this same kit with parts selected to suit your needs explore our Complete LS Swap Kits - LS Kit Builder.

Fitment

  • 1965-1970 Chevy Impala

Specifications

  • SKU: LSX25
  • Swap Engine: LS
  • Body Type: B-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 or Cast Aluminum Retro LS Oil Pan and appropriate intake for B-Body hood clearance.
  • Compatible Transmissions: 4L60E, 4L80E (direct compatibility); Other transmissions available with some modifications.
  • 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

  • Vehicle-specific fit for 1965-1970 B-Body Chevrolets
  • Maintains correct drivetrain angle to reduce vibrations
  • Compatible with 4L60E and 4L80E transmissions
  • Optimized for High Clearance oil pan compatibility
  • Built with high-quality materials for enhanced durability
  • Proudly made in the USA

Benefits

  • Ensures exact alignment for seamless B-Body installation
  • Reduces vibrations for a smoother, more comfortable drive
  • Enables direct use of 4L60E and 4L80E transmissions
  • Accommodates high-clearance oil pans for optimal fit
  • Delivers long-lasting reliability under demanding conditions
  • Guarantees American craftsmanship and premium build quality

This Item Assigned to Category and Also Fits:

Description

Complete MuscleRods LS Engine Swap Kit for 1965-1970 Chevy Impala B-Body

Fitting an LS engine and 4L transmission into a 1965-1970 Impala B-Body often runs into clearance issues under the floorboard. The 1965-1970 B-Body LS Conversion Kit solves that by providing precision motor and frame mounts plus a crossmember shaped to match the factory tunnel. This arrangement holds the original driveline angle to cut vibration and reduce stress on U-joints. Installers appreciate how the assembly drops in for 4L60E or 4L80E boxes, clears most GM oil pans and maintains true driveshaft alignment. Crafted in the USA from thick steel plate cut by laser, with solid welds and a durable finish that resists corrosion it withstands rigors of spirited use and preserves fit under stress.

Precision Driveline Alignment with LS Engine Mounts

The motor mounts and frame brackets are machined to sit the LS engine and 4L60E or 4L80E transmission at the original driveline angle. This precise positioning suppresses vibration entering the chassis and extends the life of universal joints by avoiding unwanted stress. Installers can achieve consistent outcomes without repeated shim trials, ensuring smooth torque delivery through the driveshaft. Preserving the factory angle also supports balanced wear on components over time for improved reliability under varied driving conditions.

Laser Cut Steel Construction for Lasting Strength

Each bracket and the crossmember start as thick steel plate cut by laser for sharp tolerances and clean edges. TIG welding joins the sections with minimal distortion, so the assembly maintains its shape even under the heat and loads of spirited driving. A durable powder or enamel finish shields the steel from road debris and moisture, preventing surface corrosion over years of use. Quality control in the USA ensures each weld and joint meets strict standards for structural integrity in high stress applications.

Crossmember Design for Oil Pan Clearance

The transmission crossmember is formed to clear most Gen III and Gen IV LS oil pans without requiring tunnel modifications. By accommodating options such as the Moroso high clearance pan or a cast aluminum retro unit, the kit removes a frequent obstacle in LS installations. Maintaining correct driveshaft alignment preserves optimal lubrication in the differential and avoids binding that can arise from misalignment. This targeted geometry reduces install time and gives builders the freedom to choose popular pan styles with confidence.

Comprehensive Hardware Sets for Simplified Fitment

Rather than sourcing bolts and adapters from multiple suppliers, the kit includes motor mounts, frame brackets, the crossmember with outer supports, a polyurethane transmission mount with spacers, and a full hardware pack. Numbered parts correspond to a clear instruction guide so each element drops into place in the correct sequence. This organization eliminates guesswork during assembly, helping installers complete the swap quickly and accurately. Direct compatibility with 4L60E and 4L80E transmissions means no secondary modifications are needed for these popular gearboxes.

Trust MuscleRods quality and for a more robust kit where you can build this same kit with parts selected to suit your needs explore our Complete LS Swap Kits - LS Kit Builder.

Fitment

Fitment

  • 1965-1970 Chevy Impala
  • Compatible Transmissions: 4L60E, 4L80E (direct compatibility); Other transmissions available with some modifications.
Features
  • Vehicle-specific fit for 1965-1970 B-Body Chevrolets
  • Maintains correct drivetrain angle to reduce vibrations
  • Compatible with 4L60E and 4L80E transmissions
  • Optimized for High Clearance oil pan compatibility
  • Built with high-quality materials for enhanced durability
  • Proudly made in the USA
Benefits
  • Ensures exact alignment for seamless B-Body installation
  • Reduces vibrations for a smoother, more comfortable drive
  • Enables direct use of 4L60E and 4L80E transmissions
  • Accommodates high-clearance oil pans for optimal fit
  • Delivers long-lasting reliability under demanding conditions
  • Guarantees American craftsmanship and premium build quality
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
Specifications
  • SKU: LSX25
  • Brand: Muscle Rods
  • Swap Engine: LS
  • Body Type: B-Body