Quote:
I think if you paint them orange they become High Performance........
*********************************************That's two kinds of funny, right there.....I don't care who you are.!
Roger
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| Valve spring ? https://www.slantsix.org/forum/viewtopic.php?t=43723 |
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| Author: | 70valiant [ Sat Feb 19, 2011 1:27 pm ] |
| Post subject: | Valve spring ? |
Does the color of valve springs mean anything? What color are stock springs? I have 2 different heads off in the "work space" and they have different color springs. |
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| Author: | sandy in BC [ Sat Feb 19, 2011 3:26 pm ] |
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I think if you paint them orange they become High Performance........ |
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| Author: | GTS225 [ Sat Feb 19, 2011 4:19 pm ] |
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Quote: I think if you paint them orange they become High Performance........
*********************************************That's two kinds of funny, right there.....I don't care who you are.! Roger |
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| Author: | sandy in BC [ Sat Feb 19, 2011 4:30 pm ] |
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Dont you know who I think I am? |
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| Author: | emsvitil [ Sat Feb 19, 2011 4:34 pm ] |
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I think it only becomes high performance if you use HEMI ORANGE.... 
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| Author: | 70valiant [ Sun Feb 20, 2011 4:44 am ] |
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Well thanks for the replies but... |
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| Author: | Charrlie_S [ Sun Feb 20, 2011 5:06 am ] |
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Color of the valve spring may or may not mean any thing. It all depends on who made them. When I ran stock eliminator I found most of the stock slant six springs I found in the junk yards were green. I had to use the best of the junk yard springs I could find, because, if you ordered slant six springs from the dealer, you would get 318 springs, which were slightly stiffer, and not legal. The best way to check tension is with a tester. http://www.summitracing.com/search/Part ... ing+tester If you just want to compare two spring to see which is stiffer, put the two springs end to end, and compress them. The one that compresses the most is the weaker spring. Do not fully compress the spring, it will weaken it. This will give you a comparison. |
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| Author: | hantayo13 [ Sun Feb 20, 2011 6:51 am ] |
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red for 340 , black 318 , blue slant ...usally hemi orange for sandy's high performance springs LOL |
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| Author: | olafla [ Sun Feb 20, 2011 7:30 am ] |
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The colors vary between the manufacturers, there is no standard for this. The color may indicate stiffness - or spring rate - by some manufacturers, others may use it as an expression of the maximum allowable deflection or compression, measured as a percentage of the free length of the spring. As Charrlie said, overloading a spring may weaken it, doing it constantly will weaken it. As an example, a green die spring has a max allowable deflection of 40%, while a very stiff yellow spring has 25%. These numbers have nothing to do with valve springs, other than indicate that a very stiff valve spring may also have a limited compression length, and can explain why valve failure can be experienced when using a too stiff spring with very high lift. That is one of the main reasons for using multiple springs with high lift cams. It's a very delicate balance act when approaching the extremes! Olaf. |
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| Author: | 70valiant [ Sun Feb 20, 2011 7:39 am ] |
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Ok, now that was helpfull. I have a head with what appear to be black springs and another with bright green. The bright green head was the one off of the engine I got for christmas several years ago, it was rebuilt with what was supposed to be a slightly hotter than stock cam. The one with black springs came out of a 80/81 cordoba/magnum hybrid I bought las fall. I have yet to pull the timing cover off of that engine and see what it has for a cam. I got the engine stand put together, now to get Dan to bring over the engine hoist. |
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| Author: | olafla [ Sun Feb 20, 2011 7:47 am ] |
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Quote: The bright green head was the one off of the engine I got for christmas several years ago... Jeez, must have been quite sight when that one came dumping down the chimney into the fireplace... Olaf. |
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| Author: | 1969ronnie [ Tue Mar 08, 2011 7:03 am ] |
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charlie, when you ran stock eliminator did you also have to use a stock cam? if you didn't,what was the max valve lift you got away with the stock valve springs? ronnie |
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| Author: | Charrlie_S [ Tue Mar 08, 2011 10:12 am ] |
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Quote: charlie, when you ran stock eliminator did you also have to use a stock cam? if you didn't,what was the max valve lift you got away with the stock valve springs? ronnie
When I ran, the requirement was "stock lift and duration", Timing events could be changed, as could the lift rate, and the lash. My cam was a Lunati, don't remember the timing events, but ran at a lash of .005 "good and hot". Also used the best "ratio" rocker arms, recovered from the junk yard. They did vary quite a bit.
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| Author: | 1969ronnie [ Wed Mar 16, 2011 7:41 pm ] |
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<a href="http://s773.photobucket.com/albums/yy15/1969ron/?action=view¤t=springsmoparmarch2011003.jpg" target="_blank"><img src="http://i773.photobucket.com/albums/yy15/1969ron/springsmoparmarch2011003.jpg" border="0" alt="Photobucket"></a> |
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| Author: | 1969ronnie [ Wed Mar 16, 2011 8:01 pm ] |
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i have the stock slant green spring 1739534, the replacement unpainted slant spring P4286813,the red 340 spring P4120249,and the big block tall red 2658204 for the long valves in a slant for testing. the 813"s coil bind first at 1.15-1.18,then the 249's 1.07-1.10 and the stock 534's last 1.05-1.09. it looks like you could almost run a cam with .480 lift and pass street stock inspection. has anyone tried that setup? |
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