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11139-1 33 mm X 104.75 mm Exhaust Manley Extreme Duty Valves Fits: ACURA K20 2.0L

11139-1 33 mm X 104.75 mm Exhaust Manley Extreme Duty Valves Fits: ACURA K20 2.0L
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: $62.01


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PART NUMBER: MAN11139-1
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Description
 
Manley Extreme Duty Valves

For high exhaust temperature applications, like Top Fuel, Funny Car, BB Chevy Marine, carburetor restricted Circle Track, and Turbocharged engines the best choice is the use of Inconel and XtremeAlloy exhaust valves. Exotic steel is required simply because of the enormous heat imposed on the exhaust valves in these applications. These valves use Manley's XH-430 Alloy which is superior in hot hardness strength over Manley's XH-428 as well as the competition's EV8 materials. These valves feature Chrome Stems, Hard Tips, Swirl Polished Heads and are fully machined.


APPLICATION(S):
SUBARU
2.0L EJ205 WRX-STI
2.5L EJ257 WRX-STI

MANUFACTURER:  Manley

PART NUMBER:  11139-1

INTAKE/EXHAUST:  Exhaust

HEAD DIAMETER:  33 mm

STEM DIAMETER:  5.96 mm / .2345"

OVERALL LENGTH:  104.75 mm

TIP LENGTH:  3.5 mm

MARGIN: .060"

SEAT WIDTH: .100"

STYLE:  25� X 11/32" angle/radius- 20� Dish Top of Head-Stock Length

TECH NOTES:

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