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11390H-1 2.055" X 4.874" Intake Manley Race Flo Valves Fits: Chevy LS1 / LS2 / LS6

11390H-1 2.055" X 4.874" Intake Manley Race Flo Valves Fits: Chevy LS1 / LS2 / LS6
NOTE: Photo is a general representation and NOT the actual product listed
  
These valves are priced EACH. Please choose the appropriate amount for your application.
GoRacingValves Price: $67.18


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PART NUMBER: MAN11390H-1
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Description
 
Manley Race Flo Valves

Manley Race Flo Series valves are manufactured of XH-426 material for the exhausts and NK-842 for the intakes. This series of valves is targeted at the bracket, drag and oval track racers operating below 8000 RPM - above which engine speed titanium is required. Any engine builder successfully using EV-8 alloy (21-4N) valves will find in this series of Manley valves a superior piece at a most attractive price. Manley's Ultimate Tensile Strength tests reveal that the Manley Race Series are equal to the best valves that the competition has to offer. Race Series valves feature Chrome Stems, Hard Tips, Swirl Polished Heads, and are fully machined. These valves are the recommended Exhaust valves for Alcohol engines. Race Flo valves also feature Manley's "Pro Flo" shape with an undercut stem area below the guide and just above the head of the valve. This shape in testing can provide up to a 40% flow increase in small port OE style cylinder heads.

Manley Hollow Stem Valves feature all the benefits of a lightweight valve without going to titanium alloys. These valves feature hollow stems and are approximately 10g lighter than a solid stem valve. The reduced weight is easier on valve springs, allows higher rpm, and extends overall valvetrain life.

APPLICATION(S):
CHEVROLET
LS Series V8







MANUFACTURER:  Manley

PART NUMBER:  11390H-1

INTAKE/EXHAUST:  Intake

HEAD DIAMETER:  2.055"

STEM DIAMETER:  8 mm

OVERALL LENGTH:  4.874"

TIP LENGTH:  .175"

MARGIN: .075"

SEAT WIDTH: .085"

STYLE:  Pro Flo Stem -12� X 3/8" angle/radius- 7� Dish Top of Head-Stock Length

TECH NOTES:  Hollow Stem Valve. Fits LS1/LS2/LS6 Heads

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