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QUALITY STRENGTH PERFORMANCE SINCE 1981<br />
NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW NEW<br />
QUICK INFO >>><br />
Recommended for engines with 4.125” bore or larger.<br />
Maximum competition, comp/modified drag racing,<br />
circle track, and heavy duty applications.<br />
Dart’s new PRO1 LS 12° 285cc CNC Aluminum<br />
rectangle port cylinder head for GM LS7 Compatible<br />
small block V8 engines take performance<br />
to the next level. This full CNC ported<br />
cylinder head offers higher performance and<br />
more versatility than factory designs.<br />
The 12° based high performance cylinder head<br />
has better airflow, more efficient combustion<br />
chambers and more user friendly features than<br />
production LS castings. The Dart PRO1 285cc<br />
cylinder head retains stock valve angles, stock<br />
valve locations and stock valve train mounting<br />
with dowel holes to make installation easy and<br />
durable.<br />
Heads are sold individually.<br />
12°<br />
285cc<br />
LS - CNC<br />
PRO1 LS 12° 285cc CNC - ALUMINUM - LS7 COMPATIBLE (RECTANGLE PORT)<br />
PART NO. CONFIGURATION FOR USE VALVES MAX. LIFT<br />
11060000 C-Core Casting N/A N/A<br />
11061080 Bare head 2.200 /1.625 N/A<br />
GEN III - RECTANGLE PORT<br />
CAST ALUMINUM CYLINDER HEADS<br />
Head parts kit - see page 118.<br />
Not intended for sale or use with pollution controlled vehicles.<br />
See page 63<br />
RECOMMENDED MANIFOLD<br />
PRO1 LS 12° 285cc CNC (LS) SPECS<br />
Material:<br />
RMR Cast<br />
Aluminum Alloy<br />
Valve angle: 12°<br />
Intake port volume: 285cc CNC<br />
Intake valve: 2.200”<br />
Exhaust valve: 1.625”<br />
Chamber Volume: 66cc<br />
FLOW DATA @ 28” WATER<br />
Flowed on Super Flow 1020<br />
LIFT INTAKE EXHAUST<br />
.200” 162 118<br />
.300” 233 164<br />
.400” 293 208<br />
.500” 334 230<br />
.600” 361 244<br />
.700” 380 252<br />
.800” 381 263<br />
248.362.1188 / DARTHEADS.COM Connect with us socially, search: DART MACHINERY<br />
45311021<br />
61<br />
SHORT BLOCKS TOP KITS BLOCKS HEADS MANIFOLDS CRANKSHAFT ACCESS SBC LS BBC SBF HON COATINGS BILLET
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