Re: 3690933 mopar valve springs
[Re: A727Tflite]
#3209565
01/31/24 04:38 PM
01/31/24 04:38 PM
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Joined: Jan 2003
Posts: 75,070 U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,070
U.S.S.A.
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Why not just use a good PAC equivalent spring? Or any other equivalent ... that would be too easy
running up my post count some more .
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Re: 3690933 mopar valve springs
[Re: MO_PA]
#3209571
01/31/24 04:49 PM
01/31/24 04:49 PM
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Joined: Mar 2011
Posts: 3,088 Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,088
Michigan
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I may have to use something else, I've have used the Mopar springs on several 440's and I like the way they work on the cam that I use. It would be interesting (and surprising) to see if they are made by the same company from back in the day. I used them on quite a few stock Eliminator cars (street hemis, max wedge, six pack) in the 70’s and they were great springs. I think back then Associated Spring made stuff for Chrysler/DC.
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Re: 3690933 mopar valve springs
[Re: lewtot184]
#3211115
02/06/24 01:55 PM
02/06/24 01:55 PM
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Joined: Jan 2003
Posts: 14,506 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,506
So. Burlington, Vt.
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the real problem with the '933 spring is they get into coil bind rather quickly and are a high rate spring. As you said, not a bad choice for a fairly limited selection of cams, and not really a good match for anything “modern”. Back in the day, the MP engine manual was pretty keen on making sure there was “plenty” of open spring load. Of course, that was when cams going flat wasn’t as common as it seems to be currently.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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