Harness part #HVL535846T allows transplant of an EcoTec3 5.3L V8 engine into a unlimited number of applications from Street Rod, Pro-Touring, Off-Road, Sandrails, Street machines etc. Harnesses are made to your specifications and have fuse block, check engine light, diagnostic connector, electric fan control, a complete stand-alone design to control engine functions. ADD $100 to…