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QUALITY STRENGTH PERFORMANCE SINCE 1981<br />
QUICK INFO >>><br />
Maximum competition, comp/modified drag racing,<br />
circle track. Over 7,000 RPM, high compression -<br />
low dome.<br />
<strong>Dart</strong> Race Series 15° 284cc small block heads<br />
deliver awesome performance. The shallow<br />
valve angle, reshaped raised intake ports and<br />
optimized combustion chambers produce a significant<br />
increase in both airflow and combustion<br />
efficiency.<br />
It is recommended that you contact a <strong>Dart</strong><br />
technical representative before placing an<br />
order for this item. Detailed information about<br />
your planned engine build will help to ensure<br />
that you choose the right configuration for your<br />
motor and that any special parts and considerations<br />
are taken into account.<br />
Heads are sold individually.<br />
15°<br />
284cc<br />
CNC<br />
DUAL EXHAUST BOLT PATTERNS TO FIT A VARIETY OF HEADERS.<br />
RACE SERIES 15° 284cc CNC - ALUMINUM<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
14300000C Bare Head - No Porting<br />
FULL PORT CNC - 2.150"/1.600" VALVES<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
14372010 Bare Head - Full Port<br />
14372111 1.550” Dual Springs for Solid Roller Cam .750”<br />
FULL PORT CNC - 2.180"/1.600" VALVES<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
14372030 Bare Head - Full Port<br />
14372131 1.550” Dual Springs for Solid Roller Cam .750”<br />
FULL PORT CNC - 2.180"/1.625" VALVES<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
14372040 Bare Head - Full Port<br />
14372141 1.550” Dual Springs for Solid Roller Cam .750”<br />
SMALL BLOCK CHEVY<br />
CAST ALUMINUM CYLINDER HEADS<br />
Head parts kit - see page 118.<br />
Requires shaft mount rockers<br />
and offset lifters.<br />
Requires special pistons.<br />
Assemblies with 1.550” valve spring<br />
use +.600” long valves.<br />
RECOMMENDED MANIFOLD<br />
42711000 Single Plane 4150<br />
RACE SERIES 15° 284cc CNC SPECS<br />
Material:<br />
RMR Cast<br />
Aluminum Alloy<br />
Valve Angle: 15°<br />
Intake Port Volume: 284cc CNC<br />
Intake Valve: 2.150”/2.180”<br />
Exhaust Valve: .600”/1.625”<br />
Chamber Volume: 48cc w/Ti<br />
Plug Type:<br />
Angle<br />
FLOW DATA @ 28” WATER<br />
LIFT INTAKE EXHAUST<br />
.200” 160 128<br />
.300” 232 175<br />
.400” 293 214<br />
.500” 333 242<br />
.600” 357 256<br />
.700” 369 265<br />
.800” 372 266<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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