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03-08-2008, 09:49 PM
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#1 |
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Registered User
 
Join Date: Jul 2007
Location: Ottawa Ontario Canada
Posts: 1,156
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Which is better
Ferrea or Manley valves -which is better? This is for a turbo motor so the exhaust valve has to be very good quality.
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03-09-2008, 04:41 AM
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#2 |
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Senior Member
Join Date: Dec 2001
Location: Redding,CA...USA
Posts: 4,736
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Re: Which is better
They both have different levels of quality. The best in either line are comparable. theres always titanium$$$$
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03-09-2008, 07:24 AM
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#3 |
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Registered User
Join Date: Jan 2004
Location: Duluth, Mn
Posts: 162
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Re: Which is better
I run the Manley Severe Duty's on my turbo'd 383 now. It's really just an insurance policy for me though. I've had the regular old street flo valves that my heads came with on this thing for like 4 years. Two years with a blower and two with the turbos (up to 14 psi) and there was nothing wrong with them when I changed them. Only get the Inconel exhaust valves if you are wanting to run under continuous heavy loads as a boat would be or really going to go crazy with the boost.
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85 GMC 1/2 ton LWB 4150lbs. 383 SBC with Twin MPT70 Turbos 850 CSU carb TH375 3.70 gears Ultimate 10" Converter 10.11@136.6 with 1.64 60ft. on 10.5-31-15W 
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