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Engines with power levels in excess of our dyno's capability are tuned at reduced boost levels
240 deck and 4
1 11522-R1 3D milling on piston crowns for ready to install finish
These are the same heads as we use in our Big Block builds like this one
engine control (torque
Dart SHP LS Next 427 Short Block- Callies CCW Crank & Rods, Diamond R Series Pistons Piston Style:Flat Top (-4cc) Engines with power levels inThis short block is intended for light to moderate boost. The Dart SHP LS Next adds the convenience of directly bolting on GM covers and accessories without requiring oil spacer rails and remote oil filter adapters. SHP Features Full side skirts to accommodate OE oil pans Accepts LS style Oil filters Retains all factory bolt hole locations LS Next Features Retains all of the LS Next designs features not found in competing blocks including but not