2018_DartCatalog_Final_compressed

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CHAMPIONSHIP ENGINE COMPONENTS MADE IN THE USA SHORT BLOCKS TOP KITS BLOCKS HEADS MANIFOLDS CRANKSHAFT ACCESS SBC LS BBC SBF HON COATINGS BILLET QUICK INFO >>> 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. RACE SERIES 18° 330cc - ALUMINUM RACE SERIES 18° 383cc - ALUMINUM 18° 330/383cc PART NO. CONFIGURATION CNC PORTING PORT VOL. VALVES SPRINGS CYL. BORE. 16876040 Bare Head Full Port 330cc 2.250"/1.840" 4.500" 16876146 Assembly Full Port 330cc 2.250"/1.840" 1.625"D 4.500" 16877040 Bare Head Full Port 330cc 2.250"/1.840" 4.600" 16877146 Assembly Full Port 330cc 2.250"/1.840" 1.625"D 4.600" PART NO. CONFIGURATION CNC PORTING PORT VOL. VALVES SPRINGS CYL BORE. 16874050 Bare Head Full Port 383cc 2.350"/1.840" 4.500" 16874156 Assembly Full Port 383cc 2.350"/1.840" 1.625"D 4.500" 16875050 Bare Head Full Port 383cc 2.350"/1.840" 4.600" 16875156 Assembly Full Port 383cc 2.350"/1.840" 1.625"D 4.600" BIG BLOCK CHEVY CAST ALUMINUM CYLINDER HEADS Head part kits - see pages 118. Uses +.350” long intake valves. Must use shaft mount rockers. Requires special pistons. Dart Aluminum valve covers feature machined gasket surfaces to prevent messy oil leaks. Our new inverted flange valve covers provide extra room for long ratio rockers and oversized springs. See page 96. RECOMMENDED MANIFOLDS FOR 9.800” DECK BLOCKS 41214100 Single Plane 4150 41214100 Single Plane 4500 FOR 10.200” DECK BLOCKS* 41215100 Single Plane 4150 41215100 Single Plane 4500 *Requires spacer plate kit. 62210007 330cc Intake Ports 62210009 383cc Intake Ports RACE SERIES 18° 330/383cc SPECS 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: .400” raised 330cc FLOW DATA @ 28” WATER LIFT INTAKE EXHAUST .200” 190 120 .300” 254 164 .400” 318 191 .500” 377 222 .600” 404 257 .700” 412 276 .800” 413 301 383cc FLOW DATA @ 28” WATER LIFT INTAKE EXHAUST .200” 162 136 .300” 236 177 .400” 314 216 .500” 376 254 .600” 420 289 .700” 444 316 .800” 450 330 Not intended for sale or use with pollution controlled vehicles. 88 248.362.1188 / DARTHEADS.COM Connect with us socially, search: DART MACHINERY
QUALITY STRENGTH PERFORMANCE SINCE 1981 QUICK INFO >>> Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 RPM, over 500 cubic inches. 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. We have applied the PRO1 design concept to the Big Chief in order to help make spread port technology more affordable for Sportsman racers. High flowing as cast ports combined with CNC machined chambers and bowls deliver awesome power. Big Chief PRO1 18° and 14° head assemblies include hardened seats and stainless valves. Copper seats and Titanium valves are optional. Heads are sold individually. BIG CHIEF PRO1 18° 424cc - ALUMINUM BIG CHIEF PRO1 14° 424cc - ALUMINUM 18° & 14° 424cc PART NO. CONFIGURATION CNC PORTING PORT VOL. VALVES SPRINGS CYL. BORE 18474030 Bare Head Chambers Only 424cc 2.400"/1.900" 4.500" 18474136 Assembly Chambers Only 424cc 2.400"/1.900" 1.625"D 4.500" 18475030 Bare Head Chambers Only 424cc 2.400"/1.900" 4.600" 18475136 Assembly Chambers Only 424cc 2.400"/1.900" 1.625"D 4.600" PART NO. CONFIGURATION CNC PORTING PORT VOL. VALVES SPRINGS CYL. BORE 18464030 Bare Head Chambers Only 424cc 2.400"/1.900" 4.500" 18464136 Assembly Chambers Only 424cc 2.400"/1.900" 1.625"D 4.500" 18465030 Bare Head Chambers Only 424cc 2.400"/1.900" 4.600" 18465136 Assembly Chambers Only 424cc 2.400"/1.900" 1.625"D 4.600" BIG BLOCK CHEVY CAST ALUMINUM CYLINDER HEADS BIG CHIEF PRO1 18° & 14° SPECS Material: RMR Cast Aluminum Alloy Valve Angle: 18° & 14° Intake Port Volume: 424cc Intake Valve: 2.400” Exhaust Valve: 1.900” CNC Chamber Volume: 95cc w/Ti 100cc w/SS Intake Port Shape: Rectangle Port Location: Spread port FLOW DATA @ 28” WATER LIFT INTAKE EXHAUST .200” 158 138 .300” 222 185 .400” 284 229 .500” 345 267 .600” 390 293 .700” 420 302 .800” 431 305 .900” 437 309 SHORT BLOCKS TOP KITS BLOCKS HEADS MANIFOLDS CRANKSHAFT ACCESS SBC LS BBC SBF HON COATINGS BILLET Not intended for sale or use with pollution controlled vehicles. 248.362.1188 / DARTHEADS.COM Connect with us socially, search: DART MACHINERY 89
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CHAMPIONSHIP ENGINE COMPONENTS RACE
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Dart’s wet flow bench uses a test
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