Ecotec Ported Head Wire Harnesses & Adapters Rod bearings must be purchased

Rod bearings must be purchased separately

Most GTPs are losing between 1

and the silver logo really pops against the wrinkle black background

2007 Chevrolet Cobalt LTZ Sedan 4-Door 2

Ecotec Ported Head Wire Harnesses & Adapters Rod bearings must be purchasedA ported head increases airflow by reducing restriction therefore more high rpm horsepower. Increasing head flow creates more horsepower at the same boost level and works very well with aftermarket cams. LSJ: All flowed at 28", 3. 5" bore plate, exh had a 1 5 8" flow tube, and stock valves (int. 35mm, exh. 30mm). Do NOT be fooled by other venders flowing heads without a flow tube, in the real world people run headers, not open heads without headers or