Complete MuscleRods LT Engine Swap Kit for 1964-1967 Chevy Chevelle A-Body
When transplanting a modern LT powerplant into a classic Chevelle A Body it pays to lock in perfect engine placement to preserve driveline geometry and chassis strength. The 1964-1967 A Body LT Conversion Kit delivers custom steel brackets and mounts that align the block at GM recommended angle and height while accepting GM 4L60E or 4L80E transmissions without modifying the floor tunnel. It also features predrilled holes that match factory block bosses to remove guesswork and keep torque loads distributed across reinforced frame rails. By controlling vibration transfer and securing power delivery this kit supports confident installation and dependable road performance.
Precision Fit to Maintain Driveline Alignment
The kit's custom brackets secure the LT engine block at GM's recommended angle and height to maintain precise alignment between crankshaft and driveshaft. Mirroring factory specifications preserves driveline geometry and reduces stress on universal joints under load. This exact positioning prevents uneven wear on couplings while ensuring consistent power delivery. By achieving alignment up front, builders avoid later drivetrain adjustments and tuning. Maintaining accessory alignment also protects pumps and alternators from premature failure.
American Steel Brackets for Enhanced Chassis Rigidity
Frame brackets and the crossmember are made from thick domestic steel plates that spread engine loads across a broad section of the frame rail. Strategic weld patterns at each joint ensure uniform strength under high torque conditions. The crossmember is contoured to clear factory exhaust headers, avoiding any need to alter the exhaust path. Reinforcing the engine to frame interface blocks chassis flex that leads to uneven tire wear and handling issues. This focus on structural integrity extends the lifespan of suspension and chassis components.
Engine and Transmission Mounts Designed for Vibration Control
Engine mounts use reinforced gussets and fully welded joints to withstand sudden torque spikes during acceleration. An integrated isolator in the transmission mount absorbs driveline shock to soften gear shifts and reduce cabin vibration. Proper spacing between the block and gearbox maintains seal pressure, preventing leaks common in retrofit jobs. Together these mounts limit harsh noise and vibration for a refined driving experience. Stable mount design also preserves alignment of accessories like water pumps and alternators.
Predrilled Brackets Streamline Installation for 4L60E and 4L80E
Predrilled holes match factory block bosses on the Chevelle A Body, eliminating on site measuring and custom shim work. This precision match allows installers to bolt the engine in place at the correct angle the first time. The kit includes hardware to position GM 4L60E and 4L80E transmissions at original tunnel height without modifying the floor. Clear guidance and complete hardware cut installation time and reduce error risk. Technicians of all levels can focus on final tuning instead of basic fitment challenges.
Count on MuscleRods for a well-engineered foundation for your LT swap. For a more robust kit where you can build this same kit with customizable parts to suit your needs see our Complete LT Swap Kits - LT Kit Builder.