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CHAMPIONSHIP ENGINE COMPONENTS<br />
MADE IN THE USA<br />
SHORT BLOCKS TOP KITS BLOCKS HEADS MANIFOLDS CRANKSHAFT ACCESS SBC LS BBC SBF HON COATINGS BILLET<br />
QUICK INFO >>><br />
PRO1 LS 15° 225cc intake runner covers applications<br />
from street cars and trucks to racing. As cast ports<br />
flow more than many ported designs at a much more<br />
affordable price.<br />
<strong>Dart</strong>’s 15° 225cc Aluminum cathedral port cylinder<br />
head for GM LS series small block V8 engines<br />
offers higher performance and more versatility<br />
than factory designs.<br />
The <strong>Dart</strong> LS high performance cylinder head<br />
has better airflow, more efficient combustion<br />
chambers, and more user friendly features<br />
than production LS castings.<br />
The <strong>Dart</strong> LS style cylinder head retains stock<br />
valve angles, stock valve locations and stock<br />
accessory mounting holes to make installation<br />
easy. Virtually everything else has been<br />
improved.<br />
Heads are sold individually.<br />
15°<br />
225cc<br />
LS<br />
PRO1 LS 15° 225cc - ALUMINUM - LS1 COMPATIBLE (CATHEDRAL PORT)<br />
PART NO. CONFIGURATION FOR USE VALVES MAX. LIFT<br />
11020020 Bare Head 2.050"/1.600" VJ<br />
11021122 1.290” Beehive Springs for Hydraulic Roller 2.050"/1.600" .625”<br />
11021123 1.295" Dual Spring for Hydraulic Roller 2.050"/1.600" VJ .650"<br />
GEN III - CATHEDRAL PORT<br />
CAST ALUMINUM CYLINDER HEADS<br />
Head parts kit - see page 118.<br />
PRO1 LS 15° 225cc SPECS<br />
Material:<br />
RMR Cast<br />
Aluminum Alloy<br />
Valve Angle: 15° (stock)<br />
Intake Port Volume: 225cc<br />
Intake Valve: 2.050”<br />
Exhaust Valve: 1.600”<br />
Chamber Volume: 62cc<br />
FLOW DATA @ 28” WATER<br />
LIFT INTAKE EXHAUST<br />
.200” 144 109<br />
.300” 202 154<br />
.400” 254 187<br />
.500” 290 205<br />
.600” 313 214<br />
Not intended for sale or use with pollution controlled vehicles.<br />
58<br />
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