Dropping an LS1 engine into your hot rod? Then you'll need one of these complete Summit wiring harnesses! Insulated against extreme heat and fully tested, these harnesses have all the circuits and OE-style connectors you need to hook up your engine, computer and all the sensors. The harnesses have factory-coded wires and detailed instructions so you can make a professional installation look easy. - Fits LS1 engines from 1994 to 1997. - Requires ECM from a 1999-2002 Camaro. - Can also be used on LS6 engines (through 2004) if the OEM throttle body is replaced with an LS1 cable actuated throttle body. This is the exact same harness as Summit Racing part number 890122. This harness is similar to Painless Wiring 60507.
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