Will a 1.625 valve spring work on a 440-1? - Moparts Forums

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Will a 1.625 valve spring work on a 440-1? #338327 06/04/09 09:44 PM 06/04/09 09:44 PM
Joined: Aug 2005 Posts: 761 KY J juicedcuda OP super stock
juicedcuda OP super stock J Joined: Aug 2005 Posts: 761 KY	Like it says above, will a 1.625 valve spring work on a -1 head without modification? 1970 Plymouth 'Cuda 1970 Plum Crazy "Gold Duster" 1973 Gold Duster

Re: Will a 1.625 valve spring work on a 440-1? [Re: juicedcuda] #338328 06/04/09 09:49 PM 06/04/09 09:49 PM
Joined: Mar 2009 Posts: 1,169 Virginia Beach, VA O Old School super stock
Old School super stock O Joined: Mar 2009 Posts: 1,169 Virginia Beach, VA	Quote: Like it says above, will a 1.625 valve spring work on a -1 head without modification? i put 1.625 k 1000h springs on my 572-13 heads (same basic head).all i had to do was change the spring cup. 68 cuda formula S 588" bb 5sp 70 CUDA CONVERT 500" 5SP (SUBLIME) 70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!

Re: Will a 1.625 valve spring work on a 440-1? [Re: Old School] #338329 06/04/09 09:53 PM 06/04/09 09:53 PM
Joined: Aug 2005 Posts: 761 KY J juicedcuda OP super stock
juicedcuda OP super stock J Joined: Aug 2005 Posts: 761 KY	Quote: Quote: Like it says above, will a 1.625 valve spring work on a -1 head without modification? i put 1.625 k 1000h springs on my 572-13 heads (same basic head).all i had to do was change the spring cup. That is the same spring I was going to use on mine and the machine shop told me they wouldn't fit in the pocket. 1970 Plymouth 'Cuda 1970 Plum Crazy "Gold Duster" 1973 Gold Duster

Re: Will a 1.625 valve spring work on a 440-1? [Re: juicedcuda] #338330 06/04/09 10:59 PM 06/04/09 10:59 PM
Joined: Aug 2003 Posts: 4,690 On the parachute mount N n20mstr master
n20mstr master N Joined: Aug 2003 Posts: 4,690 On the parachute mount	the pocket will need to be opened, and watch that the edges can get thin and will "peel" later. Make sure they blend any thin areas so they cant break off later on, My heads were opened up to get a 1.625 spring on there ....BAD A$$ STREET CAR.....

Re: Will a 1.625 valve spring work on a 440-1? [Re: n20mstr] #338331 06/04/09 11:06 PM 06/04/09 11:06 PM
Joined: Aug 2005 Posts: 761 KY J juicedcuda OP super stock
juicedcuda OP super stock J Joined: Aug 2005 Posts: 761 KY	Quote: the pocket will need to be opened, and watch that the edges can get thin and will "peel" later. Make sure they blend any thin areas so they cant break off later on, My heads were opened up to get a 1.625 spring on there I think now I am going to order new springs and retainers in 1.550. I already have some titanium retainers that are 1.625 and wanted to find a spring that would work in the pocket unmodified and fit the retainers I had but comp discontinued the spring that I found. I really don't want to modify the pocket for the reasons you mentioned. Last edited by juicedcuda; 06/04/09 11:07 PM. 1970 Plymouth 'Cuda 1970 Plum Crazy "Gold Duster" 1973 Gold Duster

Re: Will a 1.625 valve spring work on a 440-1? [Re: juicedcuda] #338332 06/04/09 11:10 PM 06/04/09 11:10 PM
Joined: Jan 2003 Posts: 4,448 Phoenix, AZ M MoparBilly master
MoparBilly master M Joined: Jan 2003 Posts: 4,448 Phoenix, AZ	Juiced, I'm sure there are guys who've made it work, or gotten away with it. I wanted to use the direct bolt-on T&D rockers, and they told me to avoid being forced to use thiers, or Jesels, individual pedestal style, which require machining of the head, I should NOT use the 1.625 size. I went with 1.550. "Livin' in a powder keg and givin' off sparks" 4 Street cars, 5 Race engines

Re: Will a 1.625 valve spring work on a 440-1? [Re: MoparBilly] #338333 06/04/09 11:17 PM 06/04/09 11:17 PM
Joined: Nov 2003 Posts: 6,293 Rock Springs Bob_Coomer master
Bob_Coomer master Joined: Nov 2003 Posts: 6,293 Rock Springs	The spring cups needs to be opened up, actually the as cast spring cup machined in the heads needs to be omitted. Then you can use any steel spring cup. Im 100% the 1.625 spring will require clearance work with T&D rockers. I used the Jesel 1.7 setup, and worked great. [color:"red"]65 Hemi Belvedere coming soon [/color] [color:"#00FF00"]557" Indy engine 1.07 60ft 144mph in the 8th 2100 lbs package [/color]

Re: Will a 1.625 valve spring work on a 440-1? [Re: MoparBilly] #338334 06/04/09 11:18 PM 06/04/09 11:18 PM
Joined: Aug 2005 Posts: 761 KY J juicedcuda OP super stock
juicedcuda OP super stock J Joined: Aug 2005 Posts: 761 KY	Quote: Juiced, I'm sure there are guys who've made it work, or gotten away with it. I wanted to use the direct bolt-on T&D rockers, and they told me to avoid being forced to use thiers, or Jesels, individual pedestal style, which require machining of the head, I should NOT use the 1.625 size. I went with 1.550. I have the T&D 1.7 rockers (direct bolt on), so your saying that they will only work with a 1.550 spring? 1970 Plymouth 'Cuda 1970 Plum Crazy "Gold Duster" 1973 Gold Duster

Re: Will a 1.625 valve spring work on a 440-1? [Re: MoparBilly] #338335 06/04/09 11:18 PM 06/04/09 11:18 PM
Joined: Aug 2003 Posts: 4,690 On the parachute mount N n20mstr master
n20mstr master N Joined: Aug 2003 Posts: 4,690 On the parachute mount	i use the bolt on T & D with my 1.625 springs, All it takes is a little massaging on the bottoms of the rockers where they come close to the springs/retainer its not that much really, that and you may need to use a lash cap. Thats all i did ....BAD A$$ STREET CAR.....

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