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#21
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These intake valves have been in these heads since day one, bought the head 2010 . I run real high boost and have recorded EGT's as high as 2000 degrees. So I think they fared quite well actually . Definitely not complaining about them . Im actually surprised they lasted this long.. lol. Third set of exhaust valves though... Guess they get more abused by the heat.. My cam and rollers look perfect.. No problem there.. Thanks
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My Half AN Injun..... |
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#22
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So seems like a lot of the replies are for Ferrea here. Don't know much about valves , what's good or just ok , but was told that Inconel was the best to get for what im doing. Is the 6000 valve as good ? I have no clue .. Thanks
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My Half AN Injun..... |
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#23
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I will check them out...
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My Half AN Injun..... |
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#24
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Thank you Jack...
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My Half AN Injun..... |
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#25
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Thank You...
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My Half AN Injun..... |
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#26
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I don't know much about what valves I got , but my machinist said that the exhaust valves are of a odd size . He had to buy the valves and cut them down to fit the seat that where in this head.. ...
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My Half AN Injun..... |
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#27
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Speaking of Keith Wilson and Ferrea Valve Guys. Probably not going to be taking calls or shipping valves as they are right in the middle of the 150 mph Hurricane at the moment. Tom v.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#28
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I hope those guys get through the storm ok...
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My Half AN Injun..... |
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#29
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Great products and customer service. Calvin Hill Hill Performance 708-250-7420 |
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#30
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Ferrea Super Alloy Valves
The Super Alloy Engine valves represent the highest level of sophistication in valve technology. These valves are designed to handle the extreme heat requirements and punishment of today’s Nitro Fuels, Supercharged, Turbocharged, Nitrous Oxide, and Marine race motors. http://www.ferrea.com/Super-Alloy-Valves/c7516 As stated here they are good people to deal with. They have off the shelf 6000 series for Edelbrock Pontiac heads or if interested a custom using their Super Alloy mentioned above. For my current application I had them make custom Competition Plus Hollow Stem intake valves with a 2.150" dia and a longer length for a 1.900" installed height. .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) Best time 5.13 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#31
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Thanks Calvin
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My Half AN Injun..... |
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#32
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My Half AN Injun..... |
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#33
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Tom has provided you with needed info. Yes, they do sell direct. If he is available, one of the directors is Zeke Urrutia. He likes Pontiacs and knows us well. You could discuss your specific situation and ask for recommendations. Series 6000 stainless may be fine for your application, I just don't know. Super Alloy material is much more robust than their 6000 valves. But they are more expensive and very heavy. Would probably need more spring to work with them. In order to expedite your conversation he will want to know: Head diameters, stem diameters, face angle, overall length, distance from tip to keeper groove, radial or square keeper groove, hard tips or lash caps. With that info, he will be able to get you exactly what you want and fits your budget. Good luck.
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#34
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Thank you for your help..
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My Half AN Injun..... |
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#35
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Our first set of Tiger heads came with those same valves. No issues with them. Manley has good stuff too. As mentioned, have the spring situation looked at. That cracked old valve is a concern.
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#36
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I would check the guides also as a valve rocking into its seat will make for very uneven loading and a nice pathway to broken valves!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#37
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All the guilds were checked and checked out to be fine. The valves were not floating either. The motor was running very good before this failure . Not one problem . The valve just was ready to fail.. Now I will have better valves and should be fine .. Those valves had a rough life and im happy that they lasted as long as they did..
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My Half AN Injun..... |
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#38
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A study of the valve crack under a microscope can reveal the crack propagation, and if it was based on an original material defect/ impurity (sulfide), a ding, or work-hardening.
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#39
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But thank you...
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My Half AN Injun..... |
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#40
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Got my valves today! Manley makes a nice valve!
Cant wait to geter back together ....
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My Half AN Injun..... |
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