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Valve Springs...Crane or Crow 

 

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 Post subject: Valve Springs...Crane or Crow
Posted: Thu Aug 18, 2005 11:53 pm 
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Hey guys...im buying some new valve springs tomoro due to one breaking so im doing the whole lot...The Crane heavy duty ones are about twice the price of the Crow heavy duty ones...but i cant get the Crane ones by tomorow anyway due to no stock......will the Crow ones be just as good as the Crane ones???? or at least better than the stock ones on the EB XR8s???
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Posted: Fri Aug 19, 2005 12:05 am 
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Depends on the application

For a stock cam, or anything with less than 0.500" valve lift, stock valve springs will be fine. Any more pressure and youre just increasing load on the cam lobes.

Just pick a spring which is suited to the lift and ramp of the cam.

 

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Posted: Fri Aug 19, 2005 12:09 am 
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thats the thing.....its not a stock cam, but ive been told its a Crane Cam by the previous owner....but i dont know for sure.....the previous owner didnt seem to know much either so its hard getting the exact specs of it....its nothing too stupid but it is fairly lumpy for a streeter
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Posted: Fri Aug 19, 2005 12:57 am 
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I run the crow 7738 springs on mine and have not had any issues, and have run cams with 550th lift reving to well over 6k without valve float.
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Posted: Fri Aug 19, 2005 4:00 am 
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Roller cams require good springs as there lift ramps are fairly steep..I'd use the double springs...I think you MAY require different retainers....Quite possible a 2030 / 2031 cam ?
They are over .500 and WILL break std springs!!! Stuff up your valve stems too by all the valve bounce...
Just ask Kelli....

 

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Posted: Sat Aug 20, 2005 1:19 pm 
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I am using Compcam springs #978-16 with crane 2031. They are doubles with damper. 126lb @1.850" to 368lb @ 1.250".

Richie

 

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Posted: Mon Aug 22, 2005 12:10 am 
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i got some High performance Crow cam valve spring 7738 - the same as EDXR8....theyre single with retainers....the ones that are in the car are only single.....getting the fitted tomorow....you didnt need different retainers did u EDXR8??
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Posted: Mon Aug 22, 2005 12:16 am 
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Yes you need the matching crow retainers PN 11700XR8
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Posted: Mon Aug 22, 2005 12:20 am 
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FUUUUUUCKKKKK!!!.....dont tell me that...ive been waiting 2 weeks for this guy to come & now u tell me i need the retainers.....SHHHIIIITTTT!!!!!....r u positve....what will happen if i use the stock retainers??
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Posted: Mon Aug 22, 2005 12:35 am 
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I am not positive, when I got mine they said I needed the springs and matching retainers and I know most performance springs come in a package with retainers etc, so I am not sure is you could get away with the stock ones.
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Posted: Mon Aug 22, 2005 12:39 am 
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i told the guys at the shop that i was going from stock ones to the Crow ones but they didnt mention the retainers....but its not like a shop that dosnt know s**t from clay...they sell the parts & fit them so i spose they would know if i needed the retainers too.....just have to wait and see what happens.....thanks for the insight dude.....ill make a few calls in the morning......
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Posted: Mon Aug 22, 2005 12:42 am 
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yeah give crow a call in the morning just to check it out
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Posted: Wed Aug 24, 2005 11:36 am 
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yeah....i pulled the old springs out...the crow ones are a fair bit wider so it looks like im gonna have to get the chromoly reatinaers to fit....looks like the car wont be ready till saturday now....oh well.....dusnt matter...stronger parts = Longer life & harder revs....yay :D
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Posted: Tue Aug 30, 2005 12:03 am 
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veeate wrote:
yeah....i pulled the old springs out...the crow ones are a fair bit wider so it looks like im gonna have to get the chromoly reatinaers to fit....looks like the car wont be ready till saturday now....oh well.....dusnt matter...stronger parts = Longer life & harder revs....yay :D

the beast is backkk......only $290 later...not bad for crow springs, retainers...thats fitted too.... :D :D :D Time to go for a thrash
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