LM7 STAND ALONE WIRING HARNESS

LM7 Wire Harness - speedscenewiring
LM7 Wire Harness The 5.3 (5300) is a highly capable engine, great for mid size engine compartments and is considerably smaller than the 6.0. The 4.8 and the 5.3 share the same block but the internals; crank, rods, are not.
LS Gen3 24x Standalone Harness – Swap Specialties
LS Gen3 24x Standalone Harness $ 495 Swap Specialties 24x Standalone wiring harness for GM Gen3 4.8, 5.3, 5.7, and 6 Engines have proven to be the best harness on the market today.