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Adam H
GenII
3/06/2009
13:24:03
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 Subject: Valve spring
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Message:
Im in the process of putting a new cam on in a 318, I will probably go with the KRC 206X cam I was just wondering with the stock 1.6:1 rockers would I have to change the valve springs or could I squeak by with stock... till I put the r/t heads on?
If you cant Dodge it Ram it
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gen1dak
Dodge Dakota
JOIN HERE
3/07/2009
00:01:17
| RE: Valve spring
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Message:
Skimp on the springs and it'll cost you bigtime.
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Adam H
GenII
3/07/2009
21:00:11
| RE: Valve spring
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Message:
What springs would you recommend? ones that dont cost an arm and a leg preferably! I found DC ones but dont know what one to go with or if they will work? P4876062 lift range 0.400"/0.525" single/ damper or P5249464 lift range 0.480"/0.600" single/ damper what ones would you recommend to go with with that cam?
If you cant Dodge it Ram it
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gen1dak
Dodge Dakota
JOIN HERE
3/08/2009
01:01:38
| RE: Valve spring
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Message:
The P4876062 is the higher lift spring. You want the 9464's, which are the .400/.525's. Somehow you got the numbers reversed. The thing is, the upgrades don't stop there. You are dramatically increasing the stresses, so you need thicker pushrods (as lift increases, the thin-walled stockers will flex under the load). With the stronger springs, you should use stronger valve spring retainers P4452032, as well as HD locks P4529218. The stock items, if used with the heavier springs and the higher forces that'll result when you wind it up higher than ever, will fatigue and fail. Then you drop a valve. So, when you see spring/retainer combo packages for an arm and a leg (like the one on KRC's page), you see that it's actually a decent price when you add it up. Doesn't make it any cheaper at the checkout, but ya gotta do it.
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