Complete MuscleRods LS Engine Swap Kit for 1955-1957 Tri-Five Chevy
For builders installing an LS V8 into a two door Chevy from 1955 through 1957, the 1955-1957 Chevy LS Conversion Kit solves the toughest fitment challenges by positioning the engine and transmission at the proper angle. Engineered by MuscleRods with precision frame mounts and a robust crossmember, this kit accepts T56, 4L60E and 4L80E transmissions without altering the tunnel. This arrangement preserves drivetrain angle to minimize unwanted vibrations that undermine a smooth ride. All brackets, mounts and hardware are made in the USA to deliver consistent strength and a straightforward installation.
Maintaining Drivetrain Alignment for Vibration Control
The conversion kit secures the LS engine and selected transmission at the precise angle recommended for 1955 through 1957 Chevy frames, eliminating common driveline vibrations. By aligning the output shaft of a T56, 4L60E or 4L80E transmission with the rear axle pinion, it enables smooth torque delivery under acceleration. This careful geometry reduces loads on universal joints and other driveline parts, extending their service life. The outcome is a quiet, vibration free ride that preserves classic driving comfort under modern power levels.
Plug and Play Fitment for T56 4L60E and 4L80E Transmissions
Designed for direct bolt in installation, this conversion kit accepts T56, 4L60E and 4L80E transmissions without any alteration to the transmission tunnel floor. All necessary brackets, bolts, spacers and mount hardware are included to guide assembly with factory frame rails. This arrangement saves hours of fabrication work and ensures a consistent fit across multiple engine and transmission options. Even first time installers can complete the swap quickly and reliably using the provided components.
High Clearance Oil Pan Compatibility for Hood Fit
In applications where oil capacity and clearance are critical the kit is ready to work with the GM LH8 oil pan and a matching low height intake manifold. Its frame rails and crossmember geometry clear deeper pans while preserving the stock hood line on a 1955 through 1957 Chevy. Builders can run a larger sump to support extended driving or track use without trimming sheet metal. This flexibility ensures both form and function are maintained in classic bodywork.
Robust USA Made Mounting Components for Long Term Support
All frame brackets, engine mounts and the transmission crossmember are manufactured in the United States to exacting standards using heavy gauge steel. This construction withstands the higher torque output of modern LS engines while maintaining chassis integrity. A polyurethane mount pack at the transmission crossmember isolates vibrations and resists degradation from oil and heat. Every bracket and spacer is laser cut or stamped to precise tolerances, ensuring the swap remains secure under all driving conditions.
Count on MuscleRods for a precise and straightforward foundation. For a more robust kit where you can select parts to suit your needs see our Complete LS Swap Kits - LS Kit Builder.