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Dart Machinery, LTD. stands behind each product we manufacture 100%. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible.
Big Chief 14 505cc 5.000BS

Big Chief 14° 505cc 5.000″ B S

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Product Description

For 5.000” bore space engines. Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 RPM

The original Dart Big Chief put the spread port design on the map, winning three NHRA Pro Stock championships before being banned from the class.

Our 14° Big Chief’s have dominated in Sportsman classes since their introduction, and we have continued to improve the design with the latest Pro Stock technology now available in 5.000″ bore centers.

With our sophisticated CNC machining programs, we can tailor a pair of Big Chief heads to fit your exact engine combination.

Heads are sold individually.

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Material: RMR Cast Aluminum Alloy

Valve Angle: 14°

Intake Port Volume: 505cc

Intake Valve: 2.575”

Exhaust Valve: 1.900”

Chamber Volume: 76cc

Intake Port Shape: Oval

Port Location: Spread port

Big Chief 14° 505cc – Aluminum (5.000″ Bore Space)

18777060 – Bare Head Full Port 505cc 2.575/1.900 4.750

18777169 – Assembly Full Port 505cc 2.575/1.900 1.650T 4.750

Big Chief 14º 5.000 B.S. TECH SHEET – H55

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