MuscleRods LS Engine Swap Kit for 1968-1972 A-Body Chevelle El Camino GTO/Tempest Cutlass/442 Skylark
Swapping an LS engine into a 1968 through 1972 Chevelle or El Camino stalls without precise mounts and a matched crossmember, and the 1968 through 1972 A Body LS Conversion Kit resolves those fitment and alignment hurdles. It locks the motor and transmission at the factory angle to deliver drivetrain alignment that curbs vibration across the rpm range. Installers benefit from a direct fit for 4L60E and 4L80E transmissions, generous sump clearance for taller oil pans and compatibility with Pontiac GTO Tempest, Oldsmobile Cutlass 442 and Buick Skylark models. Built in the USA by MuscleRods this comprehensive engine swap kit includes brackets and hardware to complete an LS conversion on GM A Body chassis.
Tailored Engine and Transmission Mounts for 1968-1972 A-Body Chassis
The kit includes custom motor brackets shaped to match the original frame rails of 1968-1972 A-Body Chevelle, El Camino and related GM models. By replicating the factory contact points, installers can bolt in LS engines alongside 4L60E or 4L80E transmissions without time spent grinding or spacing. Precision CNC machining of each bracket and mount ensures repeatable tolerance control, allowing consistent fitment across all vehicles in the series. This approach removes the need for trial fitting and second guessing bracket placement, meaning less shop labor and faster project turnaround. Integrated frame brackets align with the chassis mounting holes, so each component registers smoothly without the use of shims or extra spacers. The result is a solid foundation that supports heavy V8 power and torque from initial startup to wide open throttle runs.
Preserved Drivetrain Angle for Reduced Vibration
Maintaining the factory drive line angle is essential to achieve smooth operation and extend the service life of vital components. These mounts position the LS engine and transmission exactly as the original design intended, keeping universal joints operating within manufacturer tolerances. As a result, vibration levels drop significantly across the entire rpm range, offering a refined and quiet driving experience. This precision alignment also reduces rotational stress on drive shafts, carrier bearings and differential gears, minimizing the risk of premature wear. Enthusiasts will notice improved throttle response and consistent torque transfer thanks to the stable mounting geometry.
Direct Transmission Crossmember with Oil Pan Clearance
The included crossmember and outer mounting brackets secure either 4L60E or 4L80E transmission models without any alterations to the tunnel walls. Each piece is laser cut and pressed to conform exactly to the A Body floor pan contours, ensuring straightforward installation. Generous space under the oil pan accommodates a wide selection of aftermarket pans that offer increased capacity and improved cooling potential. Engineers designed this clearance to prevent interference during full suspension travel, so even with a taller sump and racing intake manifold the chassis remains uncompromised. Installers benefit from the polyurethane transmission mount and spacer set, which isolates noise and dampens engine movement for a smoother cabin environment.
Steel Fabrication and Corrosion Protection
All brackets, crossmember and mounts are formed from heavy gauge steel to withstand repeated stress cycles and the rigors of street or track use. Fabricators utilize a TIG style welding method to create uniform, high strength seams that resist cracking under torque. After welding, each metal surface receives a robust powder coat finish that seals out moisture, road salt and other corrosive elements. This coating not only enhances longevity but also preserves the precise tolerances established during manufacturing. Built in the USA to strict quality standards, these parts deliver reliable performance and durability for every LS swap project.
Count on MuscleRods for a precise fit and lasting reliability; for a more robust solution that lets you customize every component consider our Complete LS Swap Kits - LS Kit Builder.