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Race Series Chevrolet Small Block Head – 250.00 CC Port, 66.00 CC Chamber

Your Price: $4,469.21

SKU: 14172131

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Dart 12.5/15/16/18 Deg Aluminum Small Block Chevy Cylinder Heads

Maximum competition, comp/modified drag racing, circle track. Over 7,000 RPM, high compression low dome. Dart Race Series 12.5 Deg 296cc CNC heads offer outstanding performance in a raised runner style casting. By reducing the valve angle, reshaping the raised intake ports and optimizing the combustion chambers, we produced a significant increase in both airflow and combustion efficiency. It is recommended that you contact a Dart technical representative before placing an order for this item. Detailed information about your planned engine build will help to ensure that you choose the right configuration for your motor and that any special parts and considerations are taken into account.
Heads are sold individually

SKU: 14172131 Categories: , ,

GTIN: 00807051007350



CNC Ported


Combustion Chamber Volume

66.00 CC

Exhaust Valve Diameter

1.600 IN

Intake Valve Diameter

2.180 IN

Port Volume

250.00 CC



Valve Angle

18 DD

Valve Spring Diameter

1.550 IN

Valve Spring Maximum Lift

0.750 IN

Engine Type