Complete MuscleRods LS Engine Swap Kit for 1965-1970 Chevy Impala B-Body
Tackling the tight tunnel clearance on a 1965-1970 Impala B-Body, the 1965-1970 B-Body LS Conversion Kit delivers precision-fit engine and transmission mounts to keep your LS swap on track. It holds an LS block and 4L60E or 4L80E gearbox at the factory driveline angle, acting as a drivetrain alignment solution that cuts chassis vibration and extends universal joint life. Manufactured by MuscleRods in the USA from laser-cut steel, each crossmember and bracket matches the stock floor contour and resists corrosion under spirited use. This comprehensive kit includes all necessary hardware so installers can avoid extra shimming or custom modifications while preserving correct driveshaft alignment for a reliable, smooth ride.
Exact Engine and Gearbox Alignment
The 1965–1970 B-Body LS Conversion Kit secures the LS block and 4L60E or 4L80E gearbox at the original driveline angle, ensuring every component sits precisely as intended by the chassis designers. This controlled orientation reduces unwanted vibration throughout the tunnel and limits stress on universal joints, prolonging service life under spirited driving conditions. Installers avoid time spent chasing the correct angle with shims or spacers because the motor and frame brackets guide the engine and transmission into position. The result is a smoother ride, quieter operation at highway speeds, and even wear across driveline components for lasting reliability.
Precision Laser Cut Steel Fabrication
Each bracket and crossmember begins as a single sheet of thick steel plate, laser cut to mirror the factory tunnel contours with millimeter accuracy. Precision welding then fuses these parts with minimal heat distortion, preserving the designed shape and alignment points under heavy load. A corrosion resistant finish defends against moisture, road salt, and debris to keep the steel strong over many seasons. Quality checks at each production stage confirm that welds meet tensile strength requirements and alignment features remain true to spec for a consistent fit across all B-Body chassis.
Sculpted Crossmember for Oil Pan Clearance
The formed crossmember features a raised geometry that clears the majority of Gen III and Gen IV LS oil pans without requiring any cutting of the stock tunnel. It accommodates popular Moroso designs or cast aluminum retro pans, giving builders freedom to choose performance or aesthetic styles without compromise. Keeping the driveshaft at its factory height prevents binding and uneven wear in the rear differential assembly. By maintaining proper driveline alignment, this sculpted profile supports smooth power delivery and helps protect interior floor integrity during installation and future service.
Comprehensive Kit Architecture for Simplified Fitment
All necessary elements arrive in one package, including motor mounts, frame brackets, crossmember, outer support arms, a polyurethane transmission mount with spacers, and a full hardware pack. Components are clearly numbered to match step by step instructions, eliminating guesswork and reducing installation time. Direct support for both 4L60E and 4L80E transmissions removes the need for additional adapter plates, while the included fasteners ensure reliable torque values on first assembly. This all in one solution streamlines engine swap projects and boosts shop productivity with a proven fit and finish every time.
Count on MuscleRods for a precise foundation that streamlines your LS installation. For 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, consider our Complete LS Swap Kits - LS Kit Builder.