MuscleRods LT Engine Swap Kit for 1971-1976 Impala B-Body
Fitting a Gen V LT engine into a 1971-1976 Impala B Body can challenge chassis geometry and shop time, and the 1971-1976 B Body LT Conversion Kit delivers precision machined mounts and brackets that set engine height and angle exactly as designed. This MuscleRods kit includes a reinforced crossmember and transmission support bracket that secures both 4L60E and 4L80E transmissions in perfect alignment without altering factory rails. Materials selected for fatigue resistance keep chassis integrity intact while damping vibration for a quieter, more reliable operation.
Precision Machined Engine Mount Geometry
The kit's engine mounts and frame brackets are crafted using precision machining to reproduce factory engine height and angle for 1971 to 1976 Impalas. This meticulous process eliminates guesswork during installation, ensuring the LT engine aligns perfectly with the chassis rails and firewall without additional fabrication. As a result, vibration is minimized and power delivery remains smooth and consistent across the RPM range. Installers can complete engine placement with confidence, saving shop time and reducing potential alignment issues.
Reinforced Crossmember and Transmission Support
A robust crossmember forms the backbone of the swap kit, offering enhanced torsional rigidity to withstand the torque of modern LT engines. It secures either a 4L60E or 4L80E transmission at the correct angle without altering factory floor pan or frame rails. The dedicated transmission bracket keeps the tail housing in perfect alignment with the driveshaft flange, reducing drivetrain vibration and component wear over time. This integrated support system strengthens the chassis and ensures reliable performance under spirited driving.
Streamlined Integration with Gen V LT Engines
Designed specifically for Gen V powerplants such as LT1, LT4, L83, and L86, the kit accommodates the required oil pan and intake components to maintain hood clearance. Bracket and mount geometry have been optimized to preserve the original cabin structure, avoiding major firewall or rail modifications. This compatibility focus allows enthusiasts to upgrade to a modern powerplant while retaining the classic Impala silhouette and interior layout. Standard hand tools are all that's needed, making the installation accessible to both home garages and professional shops.
Engineered for straightforward installation and reliable performance. For a more robust and customizable option that lets you select parts to suit your needs see our Complete LT Swap Kits - LT Kit Builder.