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1970-1981 F-Body LS Conversion Kit


1970-1981 F-Body LS Conversion Kit
Purchase 1970-1981 F-Body LS Conversion Kit
  • 1970-1981 F-Body LS Conversion Kit

  • $529.00

    SKU: LSX2

  • Select Transmission:  

MuscleRods LS Swap Base for 1970-1981 Camaro and Firebird F-Body

Achieve flawless engine alignment and smooth power delivery in your 1970 to 1981 F Body with precision machined mounts that preserve original frame geometry and eliminate drivetrain vibration. Installation stays streamlined with this MuscleRods kit, including all necessary hardware and direct integration with the factory F Body oil pan for leak resistant fit, eliminating transmission tunnel cuts, cutting build time and preserving chassis strength with American craftsmanship.

MuscleRods LS Engine Swap Kit for 1970-1981 Camaro/Firebird F-Body

When dropping an LS motor into a 1970 through 1981 F Body chassis this 1970 through 1981 F Body LS Conversion Kit keeps crank and driveshaft centerlines exactly in line to stop unwanted vibrations. Engine mounts and a TIG welded crossmember work together to preserve factory tilt and allow the use of the stock oil pan without sump alterations. It supports popular transmissions from T56 to 4L80E without modifying the tunnel while ensuring a leak-resistant joint. Designed by MuscleRods in the USA this complete engine swap kit includes all brackets and hardware for a clean installation.

Precision alignment for LS engine driveline

The custom bracket geometry paired with a TIG welded crossmember holds the LS crankshaft and driveshaft in perfect factory tilt, preventing misalignment that can introduce driveline vibrations. By preserving the original chassis angle, the system reduces torsional stress on universal joints and transmission input shafts, which in turn safeguards couplings from premature wear. Support for popular transmissions such as T56, 4L60E and 4L80E is built in, so there is no need for tunnel modifications or trial fitting. This exacting alignment approach maintains throttle response and ensures that each installation delivers consistent results across all 1970–1981 F-Body models. Installers benefit from a fitment that works right out of the box, eliminating guesswork during assembly.

Seamless fit with factory oil pan assembly

A precision adapter plate matches the F-Body oil pan bolt pattern and sealing surface, allowing you to reuse the stock pan without any sump alterations. Maintaining the original oil pickup geometry ensures reliable lubrication of Gen III and Gen IV LS engines, from LS1 to LS3 and everything in between. With no aftermarket sump to alter, there is less risk of seal failure or leaks over time, and routine service remains straightforward. Underhood clearance stays intact, leaving popular intake manifold and hood configurations unaffected. This approach yields a clean, leak resistant installation that blends classic styling with modern engine performance.

Durable polyurethane transmission mount design

The included transmission mount uses polyurethane to resist heat, oil and road chemicals that can degrade rubber isolators. Unlike traditional mounts, polyurethane retains its stiffness under varying loads to control engine movement and isolate torsional pulses, delivering a more refined driving experience with reduced cabin noise. Custom spacers are provided for each compatible transmission to ensure correct mount height and angle, so you maintain proper powertrain geometry through every service interval. This material choice prevents bracket fatigue and helps preserve structural integrity over time. The result is a noticeable reduction in vibration without sacrificing comfort or durability.

Count on MuscleRods for precise alignment and lasting performance. For a more robust solution that lets you customize parts to suit your needs see our Complete LS Swap Kits - LS Kit Builder.

Fitment

  • 1970-1981 Chevy Camaro
  • 1970-1981 Pontiac Firebird

Specifications

  • SKU: LSX2
  • Swap Engine: LS
  • Body Type: F-Body
  • Brand: Muscle Rods
  • Compatible Engine Models: Most Gen III/IV LS Engines (e.g., LS1, LS2, LS3, 5.3L, 6.0L). Recommended to pair with an F-Body Style Oil Pan for optimal outcomes and appropriate intake for F-Body hood clearance.
  • Compatible Transmissions: T-56, 4L60E, 4L80E, TH400, Powerglide. (4L60E/4L80E are straightforward; others may need slight adjustments).
  • What's Included:
    • (2) Engine Mounts
    • (2) Frame Mounts
    • (1) Transmission Crossmember
    • (2) Transmission Crossmember Brackets
    • (1) Polyurethane Transmission Mount
    • Transmission Mount Spacer(s) - quantity determined by transmission
    • (1) Installation Hardware Pack

Key Features

  • Precision fit for 1970-1981 GM F-Body vehicles
  • Maintains correct drivetrain angle to eliminate vibrations
  • No transmission tunnel modifications required for T56 4L60E and 4L80E
  • Seamless integration with F-Body oil pan
  • All-in-one installation package with necessary hardware
  • Proudly Made in the USA

Benefits

  • Ensures perfect chassis alignment for effortless, precise engine fitment
  • Prevents engine vibrations for smoother driving and improved durability
  • Simplifies installation, avoiding tunnel modifications and preserving factory structure
  • Uses existing F-Body oil pan for straightforward, leak-resistant integration
  • Provides all mounts and hardware for hassle-free installation
  • Guarantees high-quality craftsmanship and supports domestic manufacturing

This Item Assigned to Category and Also Fits:

Description

MuscleRods LS Engine Swap Kit for 1970-1981 Camaro/Firebird F-Body

When dropping an LS motor into a 1970 through 1981 F Body chassis this 1970 through 1981 F Body LS Conversion Kit keeps crank and driveshaft centerlines exactly in line to stop unwanted vibrations. Engine mounts and a TIG welded crossmember work together to preserve factory tilt and allow the use of the stock oil pan without sump alterations. It supports popular transmissions from T56 to 4L80E without modifying the tunnel while ensuring a leak-resistant joint. Designed by MuscleRods in the USA this complete engine swap kit includes all brackets and hardware for a clean installation.

Precision alignment for LS engine driveline

The custom bracket geometry paired with a TIG welded crossmember holds the LS crankshaft and driveshaft in perfect factory tilt, preventing misalignment that can introduce driveline vibrations. By preserving the original chassis angle, the system reduces torsional stress on universal joints and transmission input shafts, which in turn safeguards couplings from premature wear. Support for popular transmissions such as T56, 4L60E and 4L80E is built in, so there is no need for tunnel modifications or trial fitting. This exacting alignment approach maintains throttle response and ensures that each installation delivers consistent results across all 1970–1981 F-Body models. Installers benefit from a fitment that works right out of the box, eliminating guesswork during assembly.

Seamless fit with factory oil pan assembly

A precision adapter plate matches the F-Body oil pan bolt pattern and sealing surface, allowing you to reuse the stock pan without any sump alterations. Maintaining the original oil pickup geometry ensures reliable lubrication of Gen III and Gen IV LS engines, from LS1 to LS3 and everything in between. With no aftermarket sump to alter, there is less risk of seal failure or leaks over time, and routine service remains straightforward. Underhood clearance stays intact, leaving popular intake manifold and hood configurations unaffected. This approach yields a clean, leak resistant installation that blends classic styling with modern engine performance.

Durable polyurethane transmission mount design

The included transmission mount uses polyurethane to resist heat, oil and road chemicals that can degrade rubber isolators. Unlike traditional mounts, polyurethane retains its stiffness under varying loads to control engine movement and isolate torsional pulses, delivering a more refined driving experience with reduced cabin noise. Custom spacers are provided for each compatible transmission to ensure correct mount height and angle, so you maintain proper powertrain geometry through every service interval. This material choice prevents bracket fatigue and helps preserve structural integrity over time. The result is a noticeable reduction in vibration without sacrificing comfort or durability.

Count on MuscleRods for precise alignment and lasting performance. For a more robust solution that lets you customize parts to suit your needs see our Complete LS Swap Kits - LS Kit Builder.

Fitment

Fitment

  • 1970-1981 Chevy Camaro
  • 1970-1981 Pontiac Firebird
  • Compatible Engine Models: Most Gen III/IV LS Engines (e.g., LS1, LS2, LS3, 5.3L, 6.0L). Recommended to pair with an F-Body Style Oil Pan for optimal outcomes and appropriate intake for F-Body hood clearance.
  • Compatible Transmissions: T-56, 4L60E, 4L80E, TH400, Powerglide. (4L60E/4L80E are straightforward; others may need slight adjustments).
Features
  • Precision fit for 1970-1981 GM F-Body vehicles
  • Maintains correct drivetrain angle to eliminate vibrations
  • No transmission tunnel modifications required for T56 4L60E and 4L80E
  • Seamless integration with F-Body oil pan
  • All-in-one installation package with necessary hardware
  • Proudly Made in the USA
Benefits
  • Ensures perfect chassis alignment for effortless, precise engine fitment
  • Prevents engine vibrations for smoother driving and improved durability
  • Simplifies installation, avoiding tunnel modifications and preserving factory structure
  • Uses existing F-Body oil pan for straightforward, leak-resistant integration
  • Provides all mounts and hardware for hassle-free installation
  • Guarantees high-quality craftsmanship and supports domestic manufacturing
What's Included
  • (2) Engine Mounts
  • (2) Frame Mounts
  • (1) Transmission Crossmember
  • (2) Transmission Crossmember Brackets
  • (1) Polyurethane Transmission Mount
  • Transmission Mount Spacer(s) - quantity determined by transmission
  • (1) Installation Hardware Pack
Specifications
  • SKU: LSX2
  • Brand: Muscle Rods
  • Swap Engine: LS
  • Body Type: F-Body