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1984-1991 Corvette LS Conversion Kit


1984-1991 Corvette LS Conversion Kit
Purchase 1984-1991 Corvette LS Conversion Kit
  • 1984-1991 Corvette LS Conversion Kit

  • $519.00

    SKU: LSX31

  • Select Transmission:  

MuscleRods Precision LS Swap Kit for 84-91 C4 Corvette

Achieve vibration-free performance in your 1984-1991 C4 Generation Corvette thanks to precision-engineered mounts that maintain optimal drivetrain angle without any transmission tunnel modifications. Backed by American craftsmanship and designed for exact F Body oil pan fit, the MuscleRods kit ensures a hassle free LS conversion with lasting strength and a perfect fit in your C4 chassis.

MuscleRods LS Engine Swap Kit for 1984-1991 Chevy Corvette C4

The 1984 to 1991 Corvette LS Conversion Kit tackles the nagging fit and vibration issues that can accompany dropping a modern LS engine into the C4 Uniframe chassis. This MuscleRods kit uses purpose shaped engine and transmission mounts to preserve precise driveline angles while fitting ZF, T56 and 4L60E gearboxes without any tunnel cutting. An exact body style oil pan adapter matches the uniframe bolt pattern to ensure reliable sealing and spare clearance under the hood. By combining precision components made in the USA and tested for vibration control, the kit streamlines installation and delivers consistent support during spirited driving.

Precision Mounting for Optimal LS Drivetrain Alignment

The engine and transmission mounts are machined to exact tolerances, positioning the LS powerplant and gearbox at the correct angle within the C4 uniframe. This precise alignment minimizes vibration and reduces stress on universal joints and differential bearings. As a result, drivers experience smoother throttle response and more consistent tire contact during aggressive cornering. By preserving factory geometry, the mounts also help prevent premature wear on transmission seals and engine accessories.

Tunnel Friendly Transmission Installation for ZF T56 and 4L60E

This system's bracket layout accommodates both manual and automatic gearboxes without any need to modify the transmission tunnel. Whether you're fitting the original ZF six-speed, a modern T56, or a 4L60E, the kit maintains factory clearance and structural integrity. Avoiding cutting or reshaping preserves body strength and prevents alignment issues during final assembly. Installers save significant time and can achieve a clean, professional install that retains the Corvette's original appearance.

F-Body Oil Pan Adapter Ensuring Leak-Free Operation

The custom adapter plate matches F-Body oil pan bolt patterns to the Corvette uniframe mounting points, delivering a perfect seal every time. By eliminating misalignment concerns common with off-the-shelf pans, the kit prevents oil seepage and pressure drops under high G-forces. The design also ensures adequate clearance under the hood, eliminating interference with intake manifolds and enabling straightforward access for filters and sensors. This precision fit reduces post-install troubleshooting and extends oil pump longevity.

American Made Components Built for Vibration Control

All brackets and mounts are fabricated from heavy-gauge steel in the USA and feature a robust corrosion-resistant finish. Each piece undergoes rigorous proof testing to ensure it can withstand the torque spikes produced by modern LS engines. The robust construction dampens harsh engine pulses, reducing noise, vibration, and harshness for a more refined driving experience. Built-in mounting points simplify assembly, helping even first-time swappers achieve reliable, repeatable results.

Trust MuscleRods for precise fit and lasting support. For a more robust customizable kit that lets you select each component to suit your needs see our Complete LS Swap Kits - LS Kit Builder.

Fitment

  • 1984-1991 Chevy Corvette

Specifications

  • SKU: LSX31
  • Swap Engine: LS
  • Body Type: C4 Generation (Uniframe)
  • Brand: Muscle Rods
  • Compatible Engine Models: Most Gen III/IV LS Engines (e.g., LS1, LS2, LS3, 5.3L, 6.0L) when used with an F-Body Style Oil pan and appropriate low-profile intake for C4 Corvette hood clearance.
  • Compatible Transmissions: ZF 6-speed (original C4 manual), T56, 4L60E (T56/4L60E without tunnel modifications); Other transmissions may require minor adjustments.
  • What's Included:
    • (2) Motor Mounts
    • (1) C-Beam Bracket
    • (1) Engine Mount Bolt Kit
    • (1) C-Beam Bolt Kit

Key Features

  • Maintains optimal drivetrain angle to prevent unwanted vibrations
  • No transmission tunnel modifications needed for ZF, T56, or 4L60E
  • Custom-engineered for seamless fit in 1984-1991 Chevrolet Corvette
  • Compatible with F-Body oil pan for exact fit
  • No-compromise design ensures durability and performance
  • Proudly made in the USA

Benefits

  • Experience smoother driving with minimized vibrations
  • Save installation time with no tunnel cutting or reshaping
  • Guarantees precise fit in 1984-1991 Corvettes for hassle-free upgrades
  • Ensures exact F-Body oil pan fit to prevent leaks
  • Delivers lasting strength and peak performance under demanding use
  • Supports American manufacturing with trusted quality and craftsmanship

This Item Assigned to Category and Also Fits:

Description

MuscleRods LS Engine Swap Kit for 1984-1991 Chevy Corvette C4

The 1984 to 1991 Corvette LS Conversion Kit tackles the nagging fit and vibration issues that can accompany dropping a modern LS engine into the C4 Uniframe chassis. This MuscleRods kit uses purpose shaped engine and transmission mounts to preserve precise driveline angles while fitting ZF, T56 and 4L60E gearboxes without any tunnel cutting. An exact body style oil pan adapter matches the uniframe bolt pattern to ensure reliable sealing and spare clearance under the hood. By combining precision components made in the USA and tested for vibration control, the kit streamlines installation and delivers consistent support during spirited driving.

Precision Mounting for Optimal LS Drivetrain Alignment

The engine and transmission mounts are machined to exact tolerances, positioning the LS powerplant and gearbox at the correct angle within the C4 uniframe. This precise alignment minimizes vibration and reduces stress on universal joints and differential bearings. As a result, drivers experience smoother throttle response and more consistent tire contact during aggressive cornering. By preserving factory geometry, the mounts also help prevent premature wear on transmission seals and engine accessories.

Tunnel Friendly Transmission Installation for ZF T56 and 4L60E

This system's bracket layout accommodates both manual and automatic gearboxes without any need to modify the transmission tunnel. Whether you're fitting the original ZF six-speed, a modern T56, or a 4L60E, the kit maintains factory clearance and structural integrity. Avoiding cutting or reshaping preserves body strength and prevents alignment issues during final assembly. Installers save significant time and can achieve a clean, professional install that retains the Corvette's original appearance.

F-Body Oil Pan Adapter Ensuring Leak-Free Operation

The custom adapter plate matches F-Body oil pan bolt patterns to the Corvette uniframe mounting points, delivering a perfect seal every time. By eliminating misalignment concerns common with off-the-shelf pans, the kit prevents oil seepage and pressure drops under high G-forces. The design also ensures adequate clearance under the hood, eliminating interference with intake manifolds and enabling straightforward access for filters and sensors. This precision fit reduces post-install troubleshooting and extends oil pump longevity.

American Made Components Built for Vibration Control

All brackets and mounts are fabricated from heavy-gauge steel in the USA and feature a robust corrosion-resistant finish. Each piece undergoes rigorous proof testing to ensure it can withstand the torque spikes produced by modern LS engines. The robust construction dampens harsh engine pulses, reducing noise, vibration, and harshness for a more refined driving experience. Built-in mounting points simplify assembly, helping even first-time swappers achieve reliable, repeatable results.

Trust MuscleRods for precise fit and lasting support. For a more robust customizable kit that lets you select each component to suit your needs see our Complete LS Swap Kits - LS Kit Builder.

Fitment

Fitment

  • 1984-1991 Chevy Corvette
  • Compatible Engine Models: Most Gen III/IV LS Engines (e.g., LS1, LS2, LS3, 5.3L, 6.0L) when used with an F-Body Style Oil pan and appropriate low-profile intake for C4 Corvette hood clearance.
  • Compatible Transmissions: ZF 6-speed (original C4 manual), T56, 4L60E (T56/4L60E without tunnel modifications); Other transmissions may require minor adjustments.
Features
  • Maintains optimal drivetrain angle to prevent unwanted vibrations
  • No transmission tunnel modifications needed for ZF, T56, or 4L60E
  • Custom-engineered for seamless fit in 1984-1991 Chevrolet Corvette
  • Compatible with F-Body oil pan for exact fit
  • No-compromise design ensures durability and performance
  • Proudly made in the USA
Benefits
  • Experience smoother driving with minimized vibrations
  • Save installation time with no tunnel cutting or reshaping
  • Guarantees precise fit in 1984-1991 Corvettes for hassle-free upgrades
  • Ensures exact F-Body oil pan fit to prevent leaks
  • Delivers lasting strength and peak performance under demanding use
  • Supports American manufacturing with trusted quality and craftsmanship
What's Included
  • (2) Motor Mounts
  • (1) C-Beam Bracket
  • (1) Engine Mount Bolt Kit
  • (1) C-Beam Bolt Kit
Specifications
  • SKU: LSX31
  • Brand: Muscle Rods
  • Swap Engine: LS
  • Body Type: C4 Generation (Uniframe)