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QUALITY STRENGTH PERFORMANCE SINCE 1981<br />
QUICK INFO >>><br />
For street performance and mild bracket racing. Under<br />
7,000 RPM, under 500 cubic inches. Excellent midrange<br />
torque and power, good for heavier vehicles.<br />
Inspired by <strong>Dart</strong>'s championship winning Pro<br />
Stock designs, the PRO1’s race proven features<br />
include rolled valve angles, improved<br />
spark plug location, extra long intake valves,<br />
raised exhaust ports, and fast burn chambers<br />
- yet the PRO1 310cc can be used with off the<br />
shelf pistons, valve train components, and intake<br />
manifolds.<br />
Long wearing Bronze valve guides, screw-in<br />
studs, multi-angle intake seats with hardened,<br />
radiused exhaust seats are standard. Best of<br />
all, our precision cast ports produce outstanding<br />
airflow without time consuming porting.<br />
Assemblies include Stainless Steel valves,<br />
premium springs, locks, retainers, guide plates<br />
and seals.<br />
Heads are sold individually.<br />
24°<br />
310cc<br />
PRO1 24° 310cc - ALUMINUM (w/ 2.250” Intake Valve)<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
19100010 Bare Head<br />
19100111 1.550” Single Springs for Hydraulic Flat Tappet Cam .660”<br />
19100112 1.550” Dual Springs for Solid Roller .700”<br />
19100116 1.625” Dual Springs for Solid Roller Cam .850”<br />
PRO1 24° 310cc - Aluminum (w/ 2.300” Intake Valve)<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
19100030 Bare Head<br />
19100132 1.550” Dual Springs for Solid Roller .700”<br />
19100136 1.625” Dual Springs for Solid Roller Cam .850”<br />
PRO1 24° 310cc - Aluminum (Marine Heads w/ 2.190” Intake Valve)<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
19100070M Bare Head<br />
PRO1 24° 310cc - Aluminum (Marine Heads w/ 2.250” Intake Valve)<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
19100010M Bare Head<br />
19100112M 1.550” Dual Springs for Hydraulic Roller Cam .660”<br />
PRO1 24° 310cc - Aluminum (Marine Heads w/ 2.300” Intake Valve)<br />
PART NO. CONFIGURATION FOR USE MAX. LIFT<br />
19100030M Bare Head<br />
19100132M 1.550” Dual Springs for Hydraulic Roller Cam .660”<br />
BIG BLOCK CHEVY<br />
CAST ALUMINUM CYLINDER HEADS<br />
DART MARINE PRO1 CYLINDER HEADS<br />
Features an exclusive Teflon© surface finish to<br />
inhibit corrosion and extend the life of the head.<br />
Fitted with Inconel exhaust valves to withstand<br />
the extended running time and temperatures<br />
typical of marine usage.<br />
Head part kits - see pages 118.<br />
Uses +.250” long intake valves.<br />
RECOMMENDED MANIFOLDS<br />
FOR 9.800” DECK BLOCKS<br />
41114000 Single Plane 4150<br />
41124000 Single Plane 4500<br />
FOR 10.200” DECK BLOCKS<br />
41115000 Single Plane 4150<br />
41125000 Single Plane 4500<br />
PRO1 24° 310cc SPECS<br />
Material:<br />
RMR Cast<br />
Aluminum Alloy<br />
Valve Angle: 24°<br />
Intake Port Volume: 310cc<br />
Intake Valve: 2.250”/2.300”<br />
Exhaust Valve: 1.880”<br />
Chamber Volume: 121cc<br />
Intake Port Shape: Rectangle<br />
Exhaust Port Location: .300” raised<br />
FLOW DATA @ 28” WATER<br />
LIFT INTAKE EXHAUST<br />
.200” 167 127<br />
.300” 250 170<br />
.400” 302 211<br />
.500” 333 244<br />
.600” 352 267<br />
.700” 360 282<br />
.800” 363 294<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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