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Whats is valve float?

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Old Aug 30, 2003 | 04:11 PM
  #1  
91GTABird's Avatar
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From: Memphis, Tn
Car: 92' RS
Engine: 357
Transmission: TH350
Axle/Gears: 4.10
Whats is valve float?

What is valve float? How does it effect your engine?
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Old Aug 30, 2003 | 05:17 PM
  #2  
hydric's Avatar
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From: Ohio
Car: 1985 Iroc-z
Engine: 355 sbc
Transmission: 700r4
hey again -

From my knowledge, valve float is where the engine stops pulling at higher rpms.

the event that takes place is the valves hit the seats and bounce causing the lifters to hold the valve open for a longer time peroid to make up for the clearance seeing the lifters lose contact with the lobes on the cam.
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Old Aug 30, 2003 | 06:32 PM
  #3  
TekViper's Avatar
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From: NJ
Car: 1990 Pontiac Firebird
Engine: 3.1L v6
Transmission: Automatic
yes, all it basically is are the valves not closing all the way at higher rpms causing loss in compression and efficiency.
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