BBC PRO1 DART CNC PORTED 335/121CC HEADS #19474136 HARLAND SHARP ROCKERS FREE!! 200 INTAKE 150 223 286

200 INTAKE         150        223         286        336        368        383

5 -3 Call R 1000268 AT 4630 Tight running clearance

O-RING FREEZE PLUGS

4 -3 Call -- 1000255 AT 4310 498 4

500           0

BBC PRO1 DART CNC PORTED 335/121CC HEADS #19474136 HARLAND SHARP ROCKERS FREE!! 200 INTAKE 150 223 286CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. FREE HARLAND SHARP SHAFT ROCKERS # S92067K DART PRO1 CNC PORTED ALUMINUM COMPLETE BIG BLOCK CHEVY CYLINDER HEADS #19474136 Port Volume: 335cc Chamber Volume: 121cc Spark Plug: Angle Standard Intake Valve: 2. 300 Exhaust Valve: 1. 880 Springs: 1. 625 dual springs for solid roller cam up to . 850 lift. Dart applied the airflow technology developed in their championship winning Pro Stock engine program to