1 The project that never ends….continues!! This time we install LS Swap Throttle Cable, Spectre Intake, and create a mount for the LS Engine ECM. 5.3 LS Engine Swap into Ol’ Blue 1971 Chevy Truck ...January 23, 2015 in FABRICATION PROJECTS / OL' BLUE tagged 5.3 Chevy Engine / 5.3 Swap / BBC to LS / Custom Exhaust / Custom LS Motor Mounts / LS Fuel Filter / LS Manifold Vband / LS Quick Disconnect / LS Swap / Painless Wire Harness / Spring Bushing Motor Mount by Paul