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Valve springs #1369297 01/14/13 12:32 AM 01/14/13 12:32 AM
Joined: Jan 2003 Posts: 2,225 Silsbee,Tx - -Cuda OP top fuel
-Cuda OP top fuel - Joined: Jan 2003 Posts: 2,225 Silsbee,Tx	What was the specs on factory 906 springs? I have been looking at a Whiplash cam and it has rather high rates.

Re: Valve springs [Re: -Cuda] #1369298 01/14/13 12:54 AM 01/14/13 12:54 AM
Joined: Mar 2007 Posts: 3,300 Northern Indiana Dunnuck Racing master
Dunnuck Racing master Joined: Mar 2007 Posts: 3,300 Northern Indiana	You'll need different springs. Even if factory springs were the right spring pressure when new,they are very old and weaken with age and use. Keith www.dunnuckracing.com

Re: Valve springs [Re: -Cuda] #1369299 01/14/13 04:38 AM 01/14/13 04:38 AM
Joined: Aug 2003 Posts: 43,228 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,228 Bend,OR USA	Quote: What was the specs on factory 906 springs? I have been looking at a Whiplash cam and it has rather high rates. I'm thinking the HP specs where 95 lbs on the seats and 300 lbs. opended at .484 lift at the retainers I like and use 140 to 175 lbs on the seats and 325 to 375 opened on flat tappet cams, solid or hydraulic lifters. I use 1.6 ratio rockers whenever I can on Mopar BB motors Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

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