Complete MuscleRods LS Engine Swap Kit for 1973-1987 C/K Trucks and 1973-1991 Blazer K5/Jimmy
When adapting an LS V8 to a two wheel drive Chevy C/K or K5 Blazer platform from the seventies and eighties, precise engine placement dictates driveline smoothness and joint longevity. The 1973-1987 2WD GM Truck LS Conversion Kit employs CNC laser cut steel brackets and mounts to lock the LS crank centerline to the stock frame angle for exact alignment. By preserving driveline geometry, it prevents vibration and u joint stress, while grade eight hardware secures T56, 4L60E and 4L80E transmissions without modifying the transmission tunnel. Built for deep oil pan clearance up to four inches, the bolt in design maintains proper pickup alignment over rough terrain and simplifies installation through existing frame openings.
Precision Crank Centerline Alignment
The conversion kit's CNC laser cut steel engine mounts are engineered to lock the LS crank centerline in perfect harmony with the original GM frame angle. By achieving this precision fit without shims or guesswork, the design preserves driveline geometry and drastically reduces vibration as well as universal joint wear. Installers benefit from a bolt in mounting process that uses existing frame holes and grade eight hardware, eliminating the need for welding or custom fabrication. This exact positioning ensures that bearing life is extended and power delivery remains smooth through every shift and throttle input.
Adaptable Transmission Crossmember Design
This kit includes a direct fit crossmember and matching brackets that support T56, 4L60E and 4L80E gearboxes without altering the transmission tunnel. By preserving the stock tunnel structure, chassis rigidity is maintained and cutting or filler panels become unnecessary. The bracket geometry cradles each transmission at the proper height and angle, safeguarding driveshaft alignment and minimizing wrap under heavy torque. Technicians save hours on assembly thanks to preformed mounting points and a complete hardware pack calibrated for correct clamp load.
Enhanced Oil Pan Fitment for Consistent Lubrication
Recognizing the popularity of deep sumps, the frame brackets are spaced to clear pans up to four inches tall while maintaining proper pickup alignment. The assembly sets the engine slightly forward and raised to shield the sump from obstacles on uneven terrain, yet it keeps the factory pickup in the optimal position to prevent oil starvation. Whether tackling off-road trails or street cruising, drivers enjoy reliable oil flow under hard cornering and steep inclines. This thoughtful layout allows builders to choose from popular aftermarket pans without worrying about interference or baffle function.
Polyurethane Isolator System with Reinforced Steel Brackets
Replacing conventional rubber, the polyurethane isolators resist heat, oil and solvent exposure while controlling engine movement with minimal deflection. All brackets are formed from thick gauge steel and feature strategic gusset plates at high load points to prevent deformation under repeated torque cycles. The result is a stout support network that holds the engine rock solid, reduces noise and vibration, and protects drivetrain components over the long haul. Every mount arrives with professional grade eight bolts and washers for a secure installation that withstands years of road and trail use.
Count on MuscleRods for a precise fit and reliability. For a more robust kit where you can build this same kit but select your own parts to better suit your needs see our Complete LS Swap Kits - LS Kit Builder.