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Our custom 5 axis
CNC machined
new GM castings
make these heads a must have for any performance oriented GM LS series
engine. These heads provide up to a 80 cfm improvement over stock OEM
versions. The 64cc chambers are a great choice for 4.00" or larger
cylinder bores. These heads are very good for naturally aspirated engines
and supercharged applications. These CNC heads feature 2.08”/1.60”
stainless steel valves, Gold Duel .650” Lift springs, titanium
retainers, Super 7 machined locks, custom honed bronze guides, machined
spring bases, and Viton rubber seals. Comes with 5 Angle valve job for
better flow around valve.
These CNC Heads
are used in
all of our C6 RXx packages. Best of all you get a stock look with racing
performance.
Technical
Specs:
Combustion
Chamber:
64cc
Intake
Runner:
227cc
Exhaust
Runner:
70cc
Intake
Valve:
2.08"
Exhaust
Valve:
1.60"
Max. Valve
Spring Lift:
0.650"
Spring
Pressure Closed:
135 lbs. @ 1.800"
Spring
Pressure Open:
375 lbs. @ 1.090"
Retainer
Material:
Titanium
Valve Seal
Material:
Viton
Valve Guide
Material:
Manganese Bronze
Valve Job:
5-angle
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Click on the picture to see how CNC Cylinder Heads are machined for
performance upgrades. |
 |
Video Courtesy of
Lingenfelter Performance
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Click on Picture
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