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1971-1976 B-Body LS Conversion Kit


1971-1976 B-Body LS Conversion Kit
Purchase 1971-1976 B-Body LS Conversion Kit
  • 1971-1976 B-Body LS Conversion Kit

  • $529.00

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MuscleRods Foundation for Your 1971-1976 Impala B-Body LS Conversion

Achieve precise drivetrain alignment and a vibration free ride in your 1971 to 1976 Impala B-Body with the MuscleRods 1971-1976 B-Body LS Conversion Kit, engineered for seamless LS engine integration and compatibility with 4L60E and 4L80E transmissions. Backed by US craftsmanship, this Engine Swap Kit eliminates transmission tunnel modifications, accommodates both high clearance and standard oil pan setups, and ensures durable performance under demanding conditions.

MuscleRods LS Engine Swap Kit for 1971-1976 Impala B-Body

Fitting a modern LS engine into a 1971-1976 Impala B-Body requires precise mounts and proper chassis clearance, and the 1971-1976 B-Body LS Conversion Kit takes the guesswork out of the equation. MuscleRods engineered this kit to maintain the correct drivetrain angle and work seamlessly with 4L60E and 4L80E transmissions without any modifications to the tunnel. Featuring support for Moroso high clearance or LH8 oil pans, it lets you tailor ground clearance to your driving style while including all the necessary installation hardware for a complete swap.

Precision Engineered Drivetrain Alignment

This conversion kit is designed to maintain the factory drivetrain angle, ensuring the LS engine and transmission share a perfect line with the driveshaft. By holding this geometry, the kit eliminates vibrations and driveline stress that can occur when components are out of square. The precision-machined mounting points and frame brackets work in concert to deliver a stable powertrain setup, translating into smoother acceleration and reduced wear on universal joints.

Seamless Transmission Tunnel Integration

Compatibility with both 4L60E and 4L80E transmissions comes without any tunnel modifications, saving significant installation time and expense. The custom transmission crossmember and polyurethane mount bracket position the gearbox exactly where it needs to be for proper clearance and alignment. Installers simply bolt the supplied hardware to the stock tunnel, making this kit one of the most straightforward solutions for classic Impala owners seeking a modern automatic upgrade.

Flexible Ground Clearance Configuration

Supporting Moroso high-clearance and LH8 oil pans, this kit gives you control over underside clearance without reshaping your frame rails. Whether you opt for the taller Moroso profile to handle rough roads or the low-profile LH8 for street-friendly ride height, the brackets accommodate both options seamlessly. This adaptability not only preserves your oil pan choice but also ensures adequate sump clearance under the stock B-Body chassis.

Complete Hardware Package with US Craftsmanship

Every component-from dual motor mounts and frame brackets to the crossmember hardware pack-is included for a turnkey installation. The use of polyurethane in the transmission mount reduces NVH while maintaining solid support under load. With all parts manufactured in the USA and precision-checked prior to shipping, this kit guarantees reliable fitment and long-term durability for demanding road or track applications.

Count on MuscleRods for precise fit and reliable performance. To access a more robust kit where you can select your own parts to better suit your needs, consider our Complete LS Swap Kits - LS Kit Builder.

Fitment

  • Impala 1971-1976

Specifications

  • SKU: LSX30
  • 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. Suitable for various GM B-Body models (Chevy, Pontiac, Olds, Buick).
  • Compatible Transmissions: 4L60E, 4L80E (no tunnel modifications required).
  • What's Included:
    • (2) Motor Mounts
    • (2) Frame Brackets
    • (1) Transmission Crossmember
    • (2) Crossmember Brackets
    • (1) Extra Frame Bracket
    • (1) Polyurethane Transmission Mount
    • (1) Installation Hardware Pack

Key Features

  • Maintains correct drivetrain angle for smooth, vibration-free ride
  • No transmission tunnel modifications required
  • Compatible with 4L60E and 4L80E transmissions
  • Designed for High Clearance and LH8 oil pans
  • Precision-engineered with premium materials for durability
  • Manufactured in the USA for guaranteed quality

Benefits

  • Delivers a smooth, stable ride without annoying vibrations
  • Saves installation time and cost by avoiding transmission tunnel modifications
  • Works seamlessly with 4L60E and 4L80E transmissions for versatile upgrades
  • Grants flexibility for optimal ground clearance or standard oil pan setup
  • Ensures long-lasting performance under tough driving conditions
  • Provides reliable, high-quality construction backed by US craftsmanship

This Item Assigned to Category and Also Fits:

Description

MuscleRods LS Engine Swap Kit for 1971-1976 Impala B-Body

Fitting a modern LS engine into a 1971-1976 Impala B-Body requires precise mounts and proper chassis clearance, and the 1971-1976 B-Body LS Conversion Kit takes the guesswork out of the equation. MuscleRods engineered this kit to maintain the correct drivetrain angle and work seamlessly with 4L60E and 4L80E transmissions without any modifications to the tunnel. Featuring support for Moroso high clearance or LH8 oil pans, it lets you tailor ground clearance to your driving style while including all the necessary installation hardware for a complete swap.

Precision Engineered Drivetrain Alignment

This conversion kit is designed to maintain the factory drivetrain angle, ensuring the LS engine and transmission share a perfect line with the driveshaft. By holding this geometry, the kit eliminates vibrations and driveline stress that can occur when components are out of square. The precision-machined mounting points and frame brackets work in concert to deliver a stable powertrain setup, translating into smoother acceleration and reduced wear on universal joints.

Seamless Transmission Tunnel Integration

Compatibility with both 4L60E and 4L80E transmissions comes without any tunnel modifications, saving significant installation time and expense. The custom transmission crossmember and polyurethane mount bracket position the gearbox exactly where it needs to be for proper clearance and alignment. Installers simply bolt the supplied hardware to the stock tunnel, making this kit one of the most straightforward solutions for classic Impala owners seeking a modern automatic upgrade.

Flexible Ground Clearance Configuration

Supporting Moroso high-clearance and LH8 oil pans, this kit gives you control over underside clearance without reshaping your frame rails. Whether you opt for the taller Moroso profile to handle rough roads or the low-profile LH8 for street-friendly ride height, the brackets accommodate both options seamlessly. This adaptability not only preserves your oil pan choice but also ensures adequate sump clearance under the stock B-Body chassis.

Complete Hardware Package with US Craftsmanship

Every component-from dual motor mounts and frame brackets to the crossmember hardware pack-is included for a turnkey installation. The use of polyurethane in the transmission mount reduces NVH while maintaining solid support under load. With all parts manufactured in the USA and precision-checked prior to shipping, this kit guarantees reliable fitment and long-term durability for demanding road or track applications.

Count on MuscleRods for precise fit and reliable performance. To access a more robust kit where you can select your own parts to better suit your needs, consider our Complete LS Swap Kits - LS Kit Builder.

Fitment

Fitment

  • Impala 1971-1976
  • 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. Suitable for various GM B-Body models (Chevy, Pontiac, Olds, Buick).
  • Compatible Transmissions: 4L60E, 4L80E (no tunnel modifications required).
Features
  • Maintains correct drivetrain angle for smooth, vibration-free ride
  • No transmission tunnel modifications required
  • Compatible with 4L60E and 4L80E transmissions
  • Designed for High Clearance and LH8 oil pans
  • Precision-engineered with premium materials for durability
  • Manufactured in the USA for guaranteed quality
Benefits
  • Delivers a smooth, stable ride without annoying vibrations
  • Saves installation time and cost by avoiding transmission tunnel modifications
  • Works seamlessly with 4L60E and 4L80E transmissions for versatile upgrades
  • Grants flexibility for optimal ground clearance or standard oil pan setup
  • Ensures long-lasting performance under tough driving conditions
  • Provides reliable, high-quality construction backed by US craftsmanship
What's Included
  • (2) Motor Mounts
  • (2) Frame Brackets
  • (1) Transmission Crossmember
  • (2) Crossmember Brackets
  • (1) Extra Frame Bracket
  • (1) Polyurethane Transmission Mount
  • (1) Installation Hardware Pack
Specifications
  • SKU: LSX30
  • Brand: Muscle Rods
  • Swap Engine: LS
  • Body Type: B-Body