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QUALITY STRENGTH PERFORMANCE SINCE 1981<br />
QUICK INFO >>><br />
For 5.000” bore space engines. Maximum Top<br />
Sportsman, Top Dragster, Pro Mod and Pro Street<br />
competition. Excellent with alcohol and nitrous,<br />
over 7,000 RPM<br />
The original Dart Big Chief put the<br />
spread port design on the map, winning<br />
three NHRA Pro Stock championships<br />
before being banned from the class.<br />
Our 14° Big Chief's have dominated in<br />
Sportsman classes since their introduction,<br />
and we have continued to improve<br />
the design with the latest Pro Stock<br />
technology now available in 5.000" bore<br />
centers.<br />
With our sophisticated CNC machining<br />
programs, we can tailor a pair of Big<br />
Chief heads to fit your exact engine combination.<br />
Heads are sold individually.<br />
14°<br />
505cc<br />
5.000”<br />
BORE SPACE<br />
BIG CHIEF 14° 505cc - ALUMINUM (5.000" Bore Space)<br />
PART NO. CONFIGURATION CNC PORTING PORT VOL. VALVES SPRINGS CYL. BORE<br />
18777060 Bare Head Full Port 505cc 2.575"/1.900" 4.750"<br />
18777169 Assembly Full Port 505cc 2.575"/1.900" 1.650"T 4.750"<br />
BIG BLOCK CHEVY<br />
CAST ALUMINUM CYLINDER HEADS<br />
BIG CHIEF 14° 505cc (5.000") SPECS<br />
Material:<br />
RMR Cast<br />
Aluminum Alloy<br />
Valve Angle: 14°<br />
Intake Port Volume: 505cc<br />
Intake Valve: 2.575”<br />
Exhaust Valve: 1.900”<br />
Chamber Volume: 76cc<br />
Intake Port Shape: Oval<br />
Port Location: Spread port<br />
FLOW DATA @ 28” WATER<br />
LIFT INTAKE EXHAUST<br />
.200” 163 152<br />
.300” 260 203<br />
.400” 344 251<br />
.500” 413 302<br />
.600” 468 334<br />
.700” 512 356<br />
.800” 540 366<br />
.900” 551 371<br />
1.000” 560 374<br />
DART ONE-PIECE<br />
ROCKER BAR<br />
For “No-Z” rocker arms<br />
PN 61400001<br />
Use T&D rocker arms<br />
T&D PN 16-1578<br />
SHORT BLOCKS TOP KITS BLOCKS HEADS MANIFOLDS CRANKSHAFT ACCESS SBC LS BBC SBF HON COATINGS BILLET<br />
Not intended for sale or use with pollution controlled vehicles.<br />
248.362.1188 / DARTHEADS.COM Connect with us socially, search: DART MACHINERY<br />
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