Dart’s new PRO1 LS 12° 285cc CNC Aluminum rectangle port cylinder head for GM LS7 Compatible small block V8 engines take performance to the next level. This full CNC ported cylinder head offers higher performance and more versatility than factory designs.
The 12° based high performance cylinder head has better airflow, more efficient combustion chambers and more user friendly features than production LS castings. The Dart PRO1 285cc cylinder head retains stock valve angles, stock valve locations and stock valve train mounting with dowel holes to make installation easy and durable.
Material: RMR Cast Aluminum Alloy
Valve angle: 12°
Intake port volume: 285cc CNC
Intake valve: 2.200”
Exhaust valve: 1.625”
Chamber Volume: 66cc
Intake Flow: 375 cfm @ 0.700" lift
Exhaust Flow: 252 cfm @ 0.700" lift
Available Options from Dart
- Standard rockers with ductile intake seats and copper impregnated exhaust seats
- Machined for Jesel shaft rockers with copper impregnated intake seats and exhaust seats
Available Options from Borowski Race Engines, Inc.
Our 5-axis Rottler EM69P is the most advanced CNC machine for head porting in the market today. We can offer these heads either as received from Dart or fully machined from castings by use and assembled to suit your specific needs. These heads with our porting program flow an amazing 424 cfm at 0.950" lift with the optional 2.250" diameter intake valves. And yes, they make big power!
Call us at 815-725-2727 to order your set today.
BUY YOUR PARTS FROM PEOPLE WHO USE THEM!
FREE SHIPPING IN THE CONTINENTAL USA
WARNING: This product contains chemicals known to the State of California to cause cancer and reproductive harm. For more information, visit www.P65warnings.ca.gov.
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