MuscleRods LT Engine Swap Kit for 1964-1967 Chevy Chevelle A-Body
Planning an LT engine swap in your 1964-1967 Chevelle A-Body chassis demands exact fit and a sturdy foundation to handle modern power. The 1964-1967 A-Body LT Conversion Kit includes precision mounts matched to block and frame tolerances, a reinforced crossmember and a dedicated transmission support that accepts 4L60E and 4L80E units without altering the floor tunnel. By positioning the engine at its ideal height and securing it firmly, the kit cuts vibration, reduces wear and preserves chassis strength under load. Manufactured in the USA, MuscleRods backs every component with expert support so installer confidence remains high from start to finish.
Precision Engine Mount Geometry for LT Series Alignment
The engine mounts in this kit are engineered to match the exact block and frame tolerances of the 1964 to 1967 Chevelle A Body chassis. By holding the LT series engine at its ideal height and angle, these mounts eliminate guesswork and ensure optimum drivetrain geometry. This precise positioning reduces vibration transfer into the cabin and cuts wear on transmission linkages over time. Installers benefit from consistent fitment that aligns crankshaft output smoothly with the driveline.
Reinforced Crossmember Strength for A Body Chassis
A heavy-gauge crossmember and rugged frame brackets bolster the original A Body rails to handle modern engine torque. Reinforcing these critical attachment points prevents frame flex under load and maintains chassis rigidity during hard acceleration or cornering. The added structure delivers sharper road feedback and preserves alignment of suspension components mile after mile. Together, they form a durable foundation that supports both street driving and spirited track use.
Tailored Transmission Support for GM 4L60E and 4L80E
This transmission mount is designed for direct compatibility with GM's 4L60E and 4L80E units without modifying the floor tunnel. Its precisely located isolator absorbs driveline torque and secures the gearbox at the optimal distance from the engine. The result is smoother shifting, minimal drivetrain lash, and a more connected feel under throttle. Builders using other transmission models can still adapt the mount with minor modifications to gain the same stability benefits.
American Crafted Components for Consistent Quality
Every bracket, mount, and crossmember is manufactured in the USA to stringent quality standards. Domestic production allows close control over weld integrity and material selection, delivering parts that meet repeatable tolerances. When questions arise during install, knowledgeable support teams are available to guide builders through each step. This combination of local craftsmanship and expert assistance gives installers confidence that their swap will perform reliably for years to come.
Count on MuscleRods for a precise fit and lasting performance. 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 LT Swap Kits - LT Kit Builder.