Dart Pro1 CNC Aluminum Big Block Chevy Cylinder Heads 19474139

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Specifications:

BrandDart
Part Number19474139
GTIN00807051011951
Cnc PortedYes
Combustion Chamber Volume121.00 cc
Cylinder Head MaterialRmr Cast Aluminum Alloy
Cylinder Head SeriesPro1
EngineBig Block
Engine TypeIce
Exhaust Valve Diameter1.880 in
Intake Runner Volume335.00 cc
Intake Valve Diameter2.300 in
MakeChevrolet
MaterialRmr Cast Aluminum Alloy
Port Volume335.00 cc
Product TypeEngine Cylinder Head
Valve Angle24 dd
Valve Spring Diameter1.650 in
Valve Spring Maximum Lift0.900 in
Valve Spring TypeTriple

Specifications:

Description:

Maximum performance, bracket racing, heads up and super classes. Over 7,500 RPM, 500+ cubic inches, a great head for maximum effort comp or bracket cars. Dart's PRO2 24 Deg 380cc CNC heads have been revised with larger 2.350 in. intake valves and a revised port design for improved airflow and a substantial horsepower increase! These cylinder heads were designed to make competitive engine building easier and less expensive by incorporating the rugged features of our famous Race Series casting into a ready to use, professional quality competition cylinder head. Every intake port, every exhaust runner, every valve bowl, and every combustion chamber is 100% digitally CNC machined for the ultimate in consistency. Assemblies include Stainless Steel valves, premium springs, locks, retainers, guide plates and seals.

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