What Valve springs are you using.

67coronetman

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Hello everyone i am curious what Valve springs you used on the Mopar 312/590 cam i am running a set of 452 heads on a 440..

Here is why i am asking i had comp springs part # 929-16 and the rubbed my Rocker arms. Then i changed them out to a spring that was a little bit less in Outside Diameter of Outer Spring..
Then someone suggested i try the Crane springs 99838 but they are out of stock.
Comp has a valve spring close to that part # 994-16.
I just want to make sure that it is a spring that will meet the Requirements for safe operation and fit.
the spring will have to be a narrower ( Outside Diameter of Outer Spring.. ) to not rub than the comp 929-16 or 928-16

Somewhere in the 1.465 area.
Oh yes i am using the Mancini 1.5 Rockers arms kit.
Any help would be very Appreciated.
 

1 Wild R/T

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Look at beehive springs, the conical shape means they have lots of clearance at the rocker....
 

PRHeads

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The Crane 99838 and Comp 994 are much too short for a BB.

How hard is the contact with the rockers? Might be a little relief cut would take care of it.
The 929’s are 1.55 diameter, which is normally not an issue on a BB.....with “most” rockers.
 

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