Description:
Dart’s PRO1 LS 12° 285cc CNC Aluminum rectangle port cylinder head for GM LS7 compatible small block V8 engines take performance to the next level. We purchase these heads as porter castings and finish them on our them on our CNCs These ported cylinder head offer much 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.
Features:
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
Dart Machinery LS7 12 Degree Cylinder Head from Borowski Race Engines, Inc. on Vimeo.
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 bare or 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!
We can offer a variety of fully assembled options. Call us at 815-725-2727 for pricing on assembled heads. Order your set today.
BUY YOUR PARTS FROM PEOPLE WHO USE THEM!
CNC Head Porting, A View from the Top from Borowski Race Engines, Inc. on Vimeo.
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