MuscleRods LS Engine Swap Kit for 1991-1996 B-Body Chevy Caprice and 1994-1996 Chevy Impala
Swapping an LS powerplant into a B Body Caprice or Impala from 1991 through 1996 often presents challenges in maintaining factory engine tilt and avoiding driveshaft vibration. The 1991-1996 B-Body LS Conversion Kit from MuscleRods is engineered to solve these issues by using precision machined steel mounts and a crossmember that bolts on to fit T56, 4L60E and 4L80E transmissions without any transmission tunnel changes. It also accommodates standard and LH8 oil pan profiles to deliver underbody clearance and ensures proper pickup placement for consistent oil scavenging while precise driveline alignment protects universal joints and transmission bearings from stress and vibration.
Precision Engine Pitch and Driveline Alignment
By preserving the factory engine tilt angle the kit ensures the transmission spline and driveshaft share a consistent centerline. This level of precision alignment significantly reduces vibration and stress on universal joints and transmission bearings under load and extends the service life of these components. When torque is applied the even geometry prevents side loading on the drivetrain and minimises unwanted noise in the cabin for a refined driving feel. Accurate angle control also supports reliable operation during spirited acceleration or steady highway cruising without introducing feedback to the chassis.
Bolt On Crossmember for Simplified Transmission Integration
The dedicated crossmember attaches directly to the factory frame rails of the 1991 through 1996 Caprice and Impala chassis without any need for transmission tunnel changes. Pre machined mounting faces accept T56 4L60E and 4L80E gearboxes at the correct height and angle from the first fit. This approach speeds up installation by removing complex fabrication steps and prevents shaft binding throughout suspension travel to keep torque delivery consistent over rough road surfaces. By maintaining proper spatial relation to the suspension mounts the design also helps avoid premature wear on yokes and bearing surfaces.
Oil Pan Fitment for Enhanced Undercarriage Clearance
Supporting both standard LS pan profiles and the LH8 design the kit positions the oil pan low enough to maximise ground clearance while maintaining optimal pick up placement. Each bracket and frame interface is engineered to avoid contact with road debris and irregular terrain without compromising scavenging performance during cornering or rapid throttle transitions. Builders can therefore choose the pan that best suits their stance or clearance requirements without modifying the mounts. This adaptability helps preserve engine oil levels under all driving conditions to protect the sump and maintain consistent lubrication.
American Machined Steel Mounts and Hardware Pack
Each motor mount and frame bracket is precision machined from high grade steel in the United States to exact tolerances for reliable fitment without the need for trimming or test fitting. CNC forming and welds ensure consistent assembly and uniform strength across all components. The included polyurethane transmission mount absorbs driveline shock and reduces gear rattle under load to keep connections solid and responsive. By supplying motor mounts, frame brackets, a crossmember and a full hardware pack in one box this kit removes sourcing delays and streamlines the entire assembly process.
Trust MuscleRods for unmatched fit and reliability in every swap. Explore a more robust kit where you can build this same kit but this is a customizable kit where the user can select their own parts to better suit their needs by visiting our Complete LS Swap Kits - LS Kit Builder.