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1955-1957 Chevy LT Conversion Kit


1955-1957 Chevy LT Conversion Kit
Purchase 1955-1957 Chevy LT Conversion Kit
  • 1955-1957 Chevy LT Conversion Kit

  • $589.00

    SKU: LTX2

  • Select Transmission:  

MuscleRods LT Conversion Essentials for 1955-1957 Tri-Five Chevy

For a precise LT engine installation in your 1955–57 Tri-Five Chevy, MuscleRods delivers custom-engineered components that guarantee flawless alignment and streamlined assembly. Reinforced crossmember and precision mounts support increased horsepower and torque while domestic craftsmanship ensures durable performance and enhanced chassis rigidity under demanding driving conditions.

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MuscleRods LT Engine Swap Kit for 1955-1957 Tri-Five Chevy

For enthusiasts tackling an LT engine swap into a Tri-Five Chevy from 1955 to 1957, the 1955 to 1957 Chevy LT Conversion Kit addresses precise fitment and frame alignment with a full set of engine mounts and crossmembers. Its precision engineered engine and transmission mounts hold modern LT powerplants like the LT1 and LT4 firmly in place while preserving original chassis geometry. By matching the factory frame dimensions and supporting transmissions such as the 4L60E, 4L80E and manual gearboxes like the T56, the kit ensures a direct install that minimizes vibration and protects underbody components. MuscleRods quality workmanship and clear instructions guide professional shops and dedicated DIY builders through each step.

Precision Mounting for 1955 to 1957 Chevy Chassis

This conversion kit is precision engineered to replicate the original frame geometry of Tri-Five Chevy models. By machining each engine mount and bracket to exact specifications, it positions modern LT engines such as the LT1, LT4, L83 or L86 in the exact location of the factory powerplant. That precise alignment eliminates unwanted vibration and stress on the chassis rails, preserving the classic handling characteristics. Maintaining correct geometry also ensures the undercarriage remains free of interference, giving a clean appearance and reliable performance.

Reinforced Crossmember Design for LT Engine Torque Handling

At the heart of the kit lies a crossmember fabricated from high strength steel plate, paired with robust mounting brackets. The strategic weld pattern and thicker material deliver exceptional rigidity, allowing the chassis to resist twisting forces generated by modern LT torque output. This reinforcement protects the transmission tunnel and supports smooth power delivery under acceleration or spirited driving. As a result, drivers notice sharper throttle response and greater confidence in demanding road conditions.

Comprehensive Engine and Transmission Compatibility

This kit supports a broad range of Gen V powerplants when used with a compatible conversion oil pan and the proper intake for hood clearance. It also fits automatic transmissions like the 4L60E and 4L80E without making any tunnel modifications. For those opting for a manual gearbox such as the T56 or TR6060, the bracket positions simplify necessary adjustments. This adaptability lets builders choose their preferred combination of horsepower, torque and shifting style without compromising fitment.

Exact Fit Components for Faster Installation

Every component in the kit, from engine mounts and frame brackets to the crossmember and transmission support, is machined to tight tolerances. Builders receive a complete hardware set along with clear step by step instructions that remove guesswork from assembly. With ready to install parts, installation time is reduced and the chance of error drops significantly. This approach benefits both professional shops and dedicated DIY installers, ensuring a smooth swap process from start to finish.

Trust in MuscleRods for precision fit and a smooth installation. For a more robust kit where you can build this same kit and select parts to suit your needs, explore our Complete LT Swap Kits - LT Kit Builder.

Fitment

  • Chevy 1955-1957

Specifications

  • SKU: LTX2
  • Swap Engine: LT
  • Body Type: Tri-Five Chevy
  • Brand: Muscle Rods
  • Compatible Engine Models: Gen V LT Engines (LT1, LT4, L83, L86) when used with a compatible LT Engine Series Conversion Oil Pan and appropriate intake for Tri-Five Chevy hood clearance. Excludes convertibles.
  • Compatible Transmissions: 4L60E, 4L80E (without tunnel modifications); T56, TR6060 may need specific adjustments.
  • What's Included:
    • Engine mounts
    • Frame brackets
    • Crossmember
    • Crossmember brackets
    • Transmission mount
    • Complete hardware set

Key Features

  • Tailored fit for 1955-1957 Chevrolet chassis
  • Enables high-performance modern LT engine swap
  • Reinforced crossmember for superior structural support
  • Precision mounts and brackets ensure seamless installation
  • Components engineered to highest quality standards
  • Proudly made in the USA by Muscle Rods

Benefits

  • Ensures perfect alignment and custom fit to your 1955-57 Chevy
  • Unlocks modern LT power for improved horsepower and torque
  • Enhances chassis rigidity to handle increased engine torque
  • Streamlines assembly with exact-fit components for faster install
  • Delivers long-lasting reliability and performance under demanding use
  • Supports US manufacturing with premium domestic craftsmanship

This Item Assigned to Category and Also Fits:

Description

MuscleRods LT Engine Swap Kit for 1955-1957 Tri-Five Chevy

For enthusiasts tackling an LT engine swap into a Tri-Five Chevy from 1955 to 1957, the 1955 to 1957 Chevy LT Conversion Kit addresses precise fitment and frame alignment with a full set of engine mounts and crossmembers. Its precision engineered engine and transmission mounts hold modern LT powerplants like the LT1 and LT4 firmly in place while preserving original chassis geometry. By matching the factory frame dimensions and supporting transmissions such as the 4L60E, 4L80E and manual gearboxes like the T56, the kit ensures a direct install that minimizes vibration and protects underbody components. MuscleRods quality workmanship and clear instructions guide professional shops and dedicated DIY builders through each step.

Precision Mounting for 1955 to 1957 Chevy Chassis

This conversion kit is precision engineered to replicate the original frame geometry of Tri-Five Chevy models. By machining each engine mount and bracket to exact specifications, it positions modern LT engines such as the LT1, LT4, L83 or L86 in the exact location of the factory powerplant. That precise alignment eliminates unwanted vibration and stress on the chassis rails, preserving the classic handling characteristics. Maintaining correct geometry also ensures the undercarriage remains free of interference, giving a clean appearance and reliable performance.

Reinforced Crossmember Design for LT Engine Torque Handling

At the heart of the kit lies a crossmember fabricated from high strength steel plate, paired with robust mounting brackets. The strategic weld pattern and thicker material deliver exceptional rigidity, allowing the chassis to resist twisting forces generated by modern LT torque output. This reinforcement protects the transmission tunnel and supports smooth power delivery under acceleration or spirited driving. As a result, drivers notice sharper throttle response and greater confidence in demanding road conditions.

Comprehensive Engine and Transmission Compatibility

This kit supports a broad range of Gen V powerplants when used with a compatible conversion oil pan and the proper intake for hood clearance. It also fits automatic transmissions like the 4L60E and 4L80E without making any tunnel modifications. For those opting for a manual gearbox such as the T56 or TR6060, the bracket positions simplify necessary adjustments. This adaptability lets builders choose their preferred combination of horsepower, torque and shifting style without compromising fitment.

Exact Fit Components for Faster Installation

Every component in the kit, from engine mounts and frame brackets to the crossmember and transmission support, is machined to tight tolerances. Builders receive a complete hardware set along with clear step by step instructions that remove guesswork from assembly. With ready to install parts, installation time is reduced and the chance of error drops significantly. This approach benefits both professional shops and dedicated DIY installers, ensuring a smooth swap process from start to finish.

Trust in MuscleRods for precision fit and a smooth installation. For a more robust kit where you can build this same kit and select parts to suit your needs, explore our Complete LT Swap Kits - LT Kit Builder.

Fitment

Fitment

  • Chevy 1955-1957
  • Compatible Engine Models: Gen V LT Engines (LT1, LT4, L83, L86) when used with a compatible LT Engine Series Conversion Oil Pan and appropriate intake for Tri-Five Chevy hood clearance. Excludes convertibles.
  • Compatible Transmissions: 4L60E, 4L80E (without tunnel modifications); T56, TR6060 may need specific adjustments.
Features
  • Tailored fit for 1955-1957 Chevrolet chassis
  • Enables high-performance modern LT engine swap
  • Reinforced crossmember for superior structural support
  • Precision mounts and brackets ensure seamless installation
  • Components engineered to highest quality standards
  • Proudly made in the USA by Muscle Rods
Benefits
  • Ensures perfect alignment and custom fit to your 1955-57 Chevy
  • Unlocks modern LT power for improved horsepower and torque
  • Enhances chassis rigidity to handle increased engine torque
  • Streamlines assembly with exact-fit components for faster install
  • Delivers long-lasting reliability and performance under demanding use
  • Supports US manufacturing with premium domestic craftsmanship
What's Included
  • Engine mounts
  • Frame brackets
  • Crossmember
  • Crossmember brackets
  • Transmission mount
  • Complete hardware set
Specifications
  • SKU: LTX2
  • Brand: Muscle Rods
  • Swap Engine: LT
  • Body Type: Tri-Five Chevy