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Race Series 18 330 383cc

Race Series 18° 330/383cc

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Product Description

Maximum competition. High torque, high compression – low dome. 8,000+ RPM, 500+ cubic inches.

Race Series big block 18° oval port heads bridge the gap between conventional heads and Dart’s Big Chief heads.

Utilizing Pro Stock style oval intake ports with 330cc or 383cc runners in a conventional asymmetrical port design, and featuring an 18° rolled valve angle with redesigned shallow combustion chambers, this design is ideal for drag racing, marine applications and dirt modified classes permitting big blocks.

Heads are sold individually.

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Material: RMR Cast Aluminum Alloy

Valve Angle: 18°

Intake Port Volume: 330/383cc

Intake Valve: 2.250”/2.350”

Exhaust Valve: 1.840”

Chamber Volume: 102cc

Intake Port Shape: Oval

Exhaust Port Location: .300” raised

Race Series 18° 330cc – Aluminum

16876040 – Bare Head Full Port 330cc 2.250/1.840 4.500

16876146 – Assembly Full Port 330cc 2.250/1.840 1.625D 4.500

16877040 – Bare Head Full Port 330cc 2.250/1.840 4.600

16877146 – Assembly Full Port 330cc 2.250/1.840 1.625D 4.600


Race Series 18° 383cc – Aluminum

16874050 – Bare Head Full Port 383cc 2.350/1.840 4.500

16874156 – Assembly Full Port 383cc 2.350/1.840 1.625D 4.500

16875050 – Bare Head Full Port 383cc 2.350/1.840 4.600

16875156 – Assembly Full Port 383cc 2.350/1.840 1.625D 4.600

RACE SERIES 18º 330 Tech Sheet – H50

RACE SERIES 18º 383 Tech Sheet – H51

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