Dart Pro Stock Technology at Unbeatable Prices
Inspired by Dart's championship-winning Pro Stock designs and available with 310, 325, 345, or 355cc rectangular port intake runners, big block Pro 1 aluminum cylinder heads deliver out-of-the-box airflow that smokes the competition! Specifically engineered for street performance, bracket racing, and Super Eliminator engines yet can be used with off-the-shelf pistons, valvetrain components, and intake manifolds.
Race-Proven Pro 1 Features
Advanced manufacturing techniques provide precision castingsExtra-long intake valves & rolled valve anglesMagnesium bronze valve guides reduce stem wear & extend cylinder head lifeMulti-angle intake seats & radiused exhaust seats dramatically increase airflowHardened exhaust seats compatible with unleaded gasolineExhaust ports raised .300" (Requires 1" longer head bolts next to exh ports. Use #070-135-3605.)Spark plug holes machined for gasketed 3/4" reach plugsSold individually
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