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or Nitrous Applications Making Upwards of 1000 HP
Callies rates them to a minimum of 2
weight and complexity
less sensitive to RF interference
The net result is a stronger
Dart SHP Iron Block (Small Block Chevy) Automatic or Nitrous Applications Making UpwardsDesigned for high performance and heavy duty applications, the SHP block is the ideal starting point for hot rodders, drag racers, circle track competitors, off roaders and high performance marine enthusiasts. Features: Brand new precision machined cast iron block. Siamese bores 4. 000" or 4. 125" (unfinished). Standard or one piece rear main seals Extra thick decks ensure reliable head gasket seal. Blind head bolt holes don't go through to water