MuscleRods LS Engine Swap Kit for 1977-1990 Caprice and 1977-1985 Impala B-Body
If you are planning an LS engine swap into a classic B Body Caprice or Impala from 1977 to 1990 and 1977 to 1985 the 1977-1990 B Body Caprice LS Conversion Kit organizes motor and transmission mounting with precision brackets that require no tunnel trimming. This Engine Swap Kit from MuscleRods preserves the original angle and offers a drivetrain alignment solution that cuts vibration by matching the engine tilt used by the factory. By offering compatibility with 4L60E and 4L80E transmissions along with options for a tall oil pan or LH8 design builders can fine tune underbody clearance to suit street or track use. Installers receive precision laser cut US steel brackets and crossmember components complete with all necessary hardware for a true bolt in installation that avoids guesswork.
Exact Engine Angle Matching for Smooth Power Delivery
Maintaining the original tilt of the LS engine on 1977 to 1990 Caprice and 1977 to 1985 Impala frames ensures universal joints operate within their ideal range, which is critical for driveline health. This precise alignment minimizes vibration and torque steer by preventing binding under load, contributing to a stable and refined driving feel. By preserving the factory engine and transmission axis, the system reduces stress on the rear differential and suspension mounts. Installers benefit from a setup that requires no guesswork, as each bracket is engineered to match the specific frame geometry. The result is a more predictable handling profile and lower long term maintenance costs.
Durable Polyurethane Mount for Enhanced Vibration Isolation
The kit's polyurethane transmission mount and spacer assembly outperforms conventional rubber components in durability and noise control. Resistant to oil, coolant and road debris, polyurethane remains stable across a wide temperature range and retains its shape over thousands of miles. Under rapid acceleration or deceleration, the mount absorbs transient harshness, preventing it from transferring into the passenger compartment. Its resistance to sagging ensures the drivetrain remains securely positioned throughout both street use and spirited driving sessions. This material choice translates to a quieter ride and consistent vibration isolation over the life of the swap.
Oil Pan Adaptability for Custom Ground Clearance
With support for either a tall clearance oil pan or the LH8 design, the crossmember and frame brackets allow builders to tailor underbody clearance without tunnel modifications. This adaptability ensures ample oil capacity while maintaining suspension and steering travel on lowered vehicles or those equipped for track use. Eliminating the need for cutting or welding streamlines the installation and preserves frame integrity. The flexibility to choose between sump profiles gives enthusiasts control over sump depth and vehicle stance. As a result, each build achieves an optimal balance of performance and practicality for diverse driving styles.
Laser Cut US Steel Brackets for Effortless Assembly
Fabricated in the USA from precision laser cut steel plate, every motor mount, frame bracket and crossmember component is produced to tight tolerances for a true bolt in fit on B Body Caprice and Impala frames. The system supports both 4L60E and 4L80E transmissions, so installers can reuse popular factory units without modifying the transmission tunnel. All required hardware is included, ensuring a one stop solution that saves time and prevents last minute trips for missing parts. Strict quality control and domestic manufacturing practices guarantee consistent performance across each kit. This combination of accuracy and comprehensive fitment detail allows for a streamlined swap process from start to finish.
Built for precision and lasting reliability this kit delivers confidence from start to finish. For a more robust kit that lets you build this solution with parts you choose to suit your needs see our Complete LS Swap Kits - LS Kit Builder.