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Valve problems: Mopar Performance valve springs, retainers

Posted: February 2nd, 2011, 5:46 pm
by qualm
So my engine is at the builders and he said that there is a problem with the valves and the the Mopar performance springs, locks and retainers. I have part numbers P4452032, P4529218, and P5249464. The problem is that my valves are 3 groove and the Mopar keepers are 1 groove. Also if we try to use the stock keepers the retainers and the valve sit flush. So do I have the wrong parts? Or do I get the earlier valves from the 1998 and earlier engines? No one seems to mention this when they recomment the Mopar Performance stuff for later engines.


Thanks,
Qualm

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 2nd, 2011, 8:24 pm
by SilverXJ
The Mopar retainers are meant to be uses on the earlier single groove valves. You might want to look at retainers from a Hemi possibly as they have 3 grooves.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 2:55 am
by dwg86
Your stock locks should work.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 8:15 am
by qualm
dwg86 wrote:Your stock locks should work.

Already tried this and it does not work. The retainers and the end of the valve, that the spring and retainer go on sit flush. There is nowhere for the pushrod to sit.

SilverXJ wrote:The Mopar retainers are meant to be uses on the earlier single groove valves. You might want to look at retainers from a Hemi possibly as they have 3 grooves.

So it is now a guessing game? Has anyone else had this issue? Could I should buy the single groove valves and call it good?


Thanks

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 8:31 am
by SilverXJ
I meant to say locks, not retainers.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 9:06 am
by qualm
SilverXJ wrote:I meant to say locks, not retainers.


So where would I start with the locks from Mopar? Any suggestions?

If I bought the old style valves would that work?


Thanks

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 10:29 am
by dwg86
Yes, you can buy valves with one lock groove, or you can use the stock 3 groove locks. It would be cheaper to use your stock locks.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 10:45 am
by qualm
dwg86 wrote:Yes, you can buy valves with one lock groove, or you can use the stock 3 groove locks. It would be cheaper to use your stock locks.
The stock locks will not work.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 12:05 pm
by SilverXJ
The old style valves will work fine. However, I would ask your machinist if he has a lock solution that would work with your valves and the mopar retainers. Perhaps one of the new hemi locks might work.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: February 3rd, 2011, 1:46 pm
by qualm
I believe all the hemi stuff is 7mm.

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: June 7th, 2011, 3:23 am
by dragginwagon406
How did you end up solving the lock issue?

Re: Valve problems: Mopar Performance valve springs, retainers

Posted: June 7th, 2011, 10:33 am
by Cheromaniac
qualm wrote:Could I should buy the single groove valves and call it good?
That would be the best solution. I had used the same Mopar springs/retainers/locks when I first built my stroker, but my valves had single groove stems and everything went together perfectly.