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0 -- -- 1000122 AT 4040 388 4
200 (8B 2100C)
we saw the need for a larger conventional-style cylinder head to extract the maximum performance from these huge motors
Extra large trunnions with more sleeve bearings to reduce wear are standard in the SD series
BBC PRO1 DART CNC PORTED 355/121 2.3/1.88 .850 HEADS & CROWER SHAFT ROCKERS 0 -- -- 1000122 ATCALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. WITH CROWER SHAFT ROCKERS IN 1. 7, 1. 75, OR 1. 8 RATIO! DART PRO1 CNC PORTED ALUMINUM COMPLETE BIG BLOCK CHEVY CYLINDER HEADS #19574136 Port Volume: 355cc Chamber Volume: 121cc Spark Plug: Angle Standard Intake Valve: 2. 300 Exhaust Valve: 1. 880 Springs: 1. 625 Diameter Double Springs For Up To . 850 Net Lift Solid Roller Cams Dart applied the airflow technology developed in their championship winning