CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

FREE CROWER SHAFT ROCKERS IN 1.7, 1.75, & 1.8 RATIO.

New PRO 2 DART CNC Ported Bare Big Block Chevy Aluminum Cylinder Heads

*These heads are bare and do not have any of the parts in picture!

INTAKE PORT: 380cc

EXHAUST PORT: 144cc

CHAMBER VOLUME: 124cc

INTAKE VALVE: Machined for 2.300

EXHAUST VALVE: Machined for 1.880

SPRINGS: Bare

Darts new PRO 2 380cc heads are the next evolution of the Big Block Chevy line up.

As engine displacements continually get bigger, we saw the need for a larger conventional-style cylinder head to extract the maximum performance from these huge motors.

The PRO2 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.

Brass head bolt tubes are inserted between adjacent intake runners to allow the ports to be widened. The high-velocity raised exhaust ports are modeled on our own Pro Stock heads using airflow concepts that dramatically improve cylinder scavenging and the engine’s ability to accelerate quickly.

Multi-angle intake valve seats direct the air-fuel mixture into the chamber like an airfoil, reducing turbulence and preventing fuel separation. Fully radiused exhaust seats provide the smoothest possible transition into the ports for hot exhaust gases.

Dart's new CNC-machined PRO 2 aluminum cylinder heads with 380cc intake ports are just what the doctor ordered for large displacement big-block Chevrolet racing engines

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WE CAN BEAT ANY PRICE ON DART OR CROWER

CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS.

CONTACT US THE PRICE IS NEGOTIABLE BEST OFFER