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The pistons will accommodate either LS3 or LS7 design heads
we use a different pulley combinations to run the supercharger at maximum RPM
Capable of 130 PSI while providing significant flow (full high speed)
Speed density
Dart SHP Short Block - Callies Magnum CCW Crank, 1/2" Head Studs Included Piston Type:LS3 The pistons will accommodate eitherThis is the short block set we use for most of our builds north of 1,500 hp. John McGhee from Cutaway Racing was with us at PRI 2023. Listen to him explain why he likes this build so much and the derivative long block topped with our All Pro CNC ported heads: Dart SHP Block 4. 125" bore standard, 4. 000" bore available main bolts upgraded to P1 main studs block is machined for 1 2" head studs Callies' Fully Counterweighted (CCW) Magnum Crankshaft
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