BBC PRO1 DART CNC 355/121 2.3/1.88 BARE HEADS 19574030 & AUTOTEC FORGED PISTONS Polished and Shot Peened with

Polished and Shot Peened with Fully Burnished Inside Diameter

150" Lift:

0 CALL 1000403 AT 4030 333 4

250 INTAKE       150                  215                 265                 311                 334                340                 344

BILLET MAIN CAPS INSTALLED

BBC PRO1 DART CNC 355/121 2.3/1.88 BARE HEADS 19574030 & AUTOTEC FORGED PISTONS Polished and Shot Peened withCALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. FREE AUTOTEC SHELF PART FORGED PISTONS! DART PRO1 CNC PORTED ALUMINUM BARE BIG BLOCK CHEVY CYLINDER HEADS #19574030 Port Volume: 355cc Chamber Volume: 121cc Spark Plug: Angle Standard Intake Valve: Machined for 2. 300 Exhaust Valve: Machined for 1. 880 Springs: Bare Dart applied the airflow technology developed in their championship winning Pro Stock engine program to produce these state of the art