MuscleRods LS Engine Swap Kit for 1963-1972 C/K-10, C/K-15, Blazer K5 and Jimmy
Swapping an LS powerplant into a 1963 through 1972 C/K or K5 frame often bumps into tight clearances and misaligned driveline angles that sap refinement. This GM truck LS conversion kit rigs modern power under classic rails with CNC machined motor mounts that lock the block at the precise orientation needed for a drivetrain alignment solution that minimizes vibration and extends component life. Custom crossmember and side brackets install into factory rail holes with no cutting or grinding, preserving tunnel integrity and maintaining chassis strength from first bolt to final torque. Fitment spans popular transmissions such as the T56, 4L60E and 6L80E while accommodating raised sump and LH8 oil pans to suit varying ground clearance demands, and all steel components are American made for lasting dependability.
Precision CNC Motor Mounts Ensuring Optimal Driveline Angle
The swap kit uses CNC machined motor mounts to lock an LS engine at the exact angle under the stock tunnel. This precision alignment helps maintain correct driveline angle so universal joints operate within spec. By eliminating installer guess work these mounts reduce stress on bearings and transmission couplings. The result is less vibration and noise in the cabin and improved durability of drivetrain parts during daily driving or towing.
Tailored Crossmember Design for Seamless Frame Rail Install
A custom crossmember and side brackets locate directly into factory rail holes on 1963 through 1972 GM 10 and 15 half ton frames. This design requires no cutting or grinding of rails to preserve chassis integrity. Installers can bolt the assembly in place to achieve proper transmission position under the tunnel. The tailored fit supports transmissions such as T56, 4L60E and 6L80E without tunnel revisions for a straightforward swap.
Oil Pan Compatibility for Varied Ground Clearance Needs
The kit accepts both raised sump oil pans and LH8 style low profile pans to match different driving missions. A raised sump design lifts the reservoir for off road trail clearance while the LH8 pan keeps the engine footprint slim for street use. Both options share factory bolt patterns so no adapter or weld is required during swap. Builders benefit from flexibility to switch pan styles when terrain or parking constraints change.
Steel Brackets and Polyurethane Mount for Enhanced Vibration Control
All brackets and crossmember components are formed from heavy gauge steel for strength under load. A polyurethane transmission mount cushions shock from gear shifts and isolates drivetrain vibration before it reaches the driveshaft or cabin. Grade specific hardware locks the assembly in place and resists loosening over time. Together these parts extend service intervals and protect universal joints and gearbox seals against premature wear.
Count on MuscleRods for a dependable fit and performance in your LS swap. For a more robust and customizable kit that lets you select parts to suit your needs see our Complete LS Swap Kits - LS Kit Builder.