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09-03-2010, 06:18 PM
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#1 |
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Junior Member
Join Date: Oct 2004
Location: Gatesville texas
Posts: 180
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Valve Springs
How often do you guys have to change your valve springs?
I have Manley springs on mine amd she runs fine but with an 800 lift roller cam there has to be some serious spring pressure there. Guess I need to break down and check them, so far two years and I haven't had to make many adjustments on the valve train. Anyway I know the springs can be an issue and was curious what kind of time you guys were getting with yours. Keith
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68 GMC 565 BBC Abruzzi super pro glide 9.85@135.00 
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09-03-2010, 07:45 PM
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#2 |
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Registered User
Join Date: Nov 2007
Location: Bay Area, Ca
Posts: 2,841
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Re: Valve Springs
I had about 15k on my Crane 832's. But it was a little .610/.612 lift hyd cam..
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------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49 |
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09-04-2010, 07:47 AM
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#3 |
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Senior Member
 
Join Date: Mar 2008
Location: tyler texas
Posts: 1,536
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Re: Valve Springs
I have over 900 lift with a 2.200 spring and Titanium valves. I change them at or before 150 runs along with rings and lifters . On your deal you can probably go alot further maybe even 300 but at that point you really need to stay on top of the pressure. I would say 200 runs to be safe . You dont need to float the valves .
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NHRA Super Street 469C It only runs 10.90 at 156 mph |
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09-04-2010, 09:53 PM
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#4 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: Valve Springs
Regan.....love your intake! Who stitched 'er up??
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09-11-2010, 12:25 PM
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#5 |
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Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
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Re: Valve Springs
Manley 650 lb. per " NexTex springs, 320# on the seat 830# on the nose. Beat up on them a little bit like Regan does,, there good for a season (about 50 miles if it's a good season
 )One of your best friends here is LSM. The actual # you read is really not the issue. CHANGES in the # is important. When springs go away they start beating things up REAL quick. With titanium valves running about $120 EACH it's not something you let go unchecked. Figure $1800 in valves and $600 for lifters,, letting spring pressure go unchecked can get REAL expensive in a big hurry. This little LSM gadget will give you a reliable # to compare to your baseline in less time than it takes to adjust the lash. 
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Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. |
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