Complete MuscleRods LS Engine Swap Kit for 1973-1987 C/K Trucks and 1973-1991 K5 Blazer/Jimmy
If you plan to fit an LS V8 into a 1973 to 1987 two wheel drive Chevrolet C/K truck or a 1973 to 1991 Blazer K5/Jimmy, the 1973-1987 2WD GM Truck LS Conversion Kit takes the guesswork out of set up. It uses CNC laser cut steel brackets to lock the LS crank centerline at the original frame angle without welding or altering the transmission tunnel while accommodating T56 4L60E and 4L80E gearboxes. Precision alignment preserves driveline geometry for a vibration free ride and reduced universal joint wear. Mounting points clear deep sump oil pans up to four inches tall and grade eight hardware secures the assembly for dependable strength on uneven terrain or the open road.
Precision CNC Laser Cut Bracket Alignment
The conversion kit employs CNC laser cut steel brackets to lock the LS crank centerline exactly at the original GM frame angle without any welding or filler plates. By preserving driveline geometry, these precision mounts reduce vibration and minimize stress on universal joints, extending their service life under load. Installers simply bolt the brackets to existing frame openings using grade eight hardware, removing the need for custom fabrication. The result is a smooth power delivery feel, consistent bearing loads and a secure engine placement that supports hard acceleration and cornering.
Direct Fit Transmission Support for T56 4L60E and 4L80E
This kit includes a dedicated transmission crossmember and side brackets for T56, 4L60E and 4L80E gearboxes that fit without altering the factory tunnel. Maintaining the stock tunnel preserves chassis rigidity and body alignment while preventing unwanted flex. The bracket geometry holds each transmission at the correct height and angle to safeguard driveshaft alignment and to prevent wrap under heavy torque. Technicians save significant time thanks to preformed mounting points and a complete hardware pack calibrated for uniform clamp load.
Deep Sump Oil Pan Accommodation and Pickup Protection
Designed to clear oil pans up to four inches tall, the frame brackets position the engine slightly forward and raised for enhanced ground clearance. This layout ensures the factory pickup remains submerged even when traversing steep inclines or uneven terrain, preventing oil starvation under high cornering forces. Builders can select popular aftermarket deep sump pans without concern for interference or baffle misalignment. Whether on trail or highway, the engine maintains consistent lubrication performance and reliable pan protection.
Polyurethane Engine Isolators with Reinforced Steel Brackets
Replacing traditional rubber, polyurethane isolators resist heat, oil and solvent exposure while limiting engine movement to a controlled deflection range. Heavy gauge steel brackets feature gusset plates at high stress zones to prevent deformation under repeated torque cycles. This combination dampens noise and vibration more effectively than soft mounts, safeguarding adjacent drivetrain components. Each assembly arrives with professional grade eight bolts and lock washers to secure the engine firmly through years of road and off-road use.
Trust MuscleRods engineering for a seamless LS swap. For a more robust kit where you can select parts to suit your needs see our Complete LS Swap Kits - LS Kit Builder.