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Shaft mounted valve spring compressor tools #2714586
11/10/19 05:30 PM
11/10/19 05:30 PM
Joined: May 2011
Posts: 220
Aurora, CO
jbeintherockies Offline OP
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jbeintherockies  Offline OP
enthusiast

Joined: May 2011
Posts: 220
Aurora, CO
Hello,

I have a 340 with X heads and the shaft-mounted rocker assembly. I need to change some of the valve seals. I really do not want to remove the heads to do it.

What valve spring compressor tools do you guys use to compress the valve springs with the heads still bolted to the block for an LA engine?

Not sure what questions to ask or specifics to provide. Please ask for details if needed.

TYIA wrench

Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2714587
11/10/19 05:40 PM
11/10/19 05:40 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
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Posts: 25,618
Rio Linda, CA
The Proform 67460 work pretty well. Use compressed air or rope to hold the valves while compressing the spring.

https://www.summitracing.com/parts/pro-67460/


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Re: Shaft mounted valve spring compressor tools [Re: John_Kunkel] #2714736
11/11/19 10:29 AM
11/11/19 10:29 AM
Joined: Apr 2003
Posts: 3,496
Tulsa, Oklahoma
340Cuda Offline
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340Cuda  Offline
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Posts: 3,496
Tulsa, Oklahoma
Quite a bit more expensive but worth it in my opinion. Easier to use when working by yourself.

https://www.summitracing.com/parts/lsm-sc-800/overview/

Re: Shaft mounted valve spring compressor tools [Re: 340Cuda] #2714740
11/11/19 10:34 AM
11/11/19 10:34 AM
Joined: May 2019
Posts: 6,175
nowhere
S
Sniper Offline
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Sniper  Offline
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Originally Posted by 340Cuda
Quite a bit more expensive but worth it in my opinion. Easier to use when working by yourself.

https://www.summitracing.com/parts/lsm-sc-800/overview/


Explain how that works on a shaft mounted rocker head?

Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2714774
11/11/19 12:21 PM
11/11/19 12:21 PM
Joined: Dec 2007
Posts: 18,153
Mass
DAYCLONA Offline
I Live Here
DAYCLONA  Offline
I Live Here

Joined: Dec 2007
Posts: 18,153
Mass
Standard jaw type valve spring compressor and air the cylinder up is all you need....costs ya $25-$40 in tools

Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2714776
11/11/19 12:37 PM
11/11/19 12:37 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
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C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
The one Mopar sells for SB works very well scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Shaft mounted valve spring compressor tools [Re: 340Cuda] #2714926
11/11/19 08:09 PM
11/11/19 08:09 PM
Joined: May 2011
Posts: 220
Aurora, CO
jbeintherockies Offline OP
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jbeintherockies  Offline OP
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Joined: May 2011
Posts: 220
Aurora, CO
The SC-100 is the unit for the small block mopar. however, you need to buy the adapter plate (SC-146).

http://www.lsmproducts.com/lsm_tools/valve_spring_compressors

Between the two parts, you are at: $205.99 + $59.99 = $265.98. To use it, remove the rocker shaft assembly and bolt it to where the shaft assembly would normally bolt to. Then use the tool on one section of I/E at a time to compress the springs. The good thing about it, you can compress the spring and use both hands to install the retainer and locks.


This is cheaper, but may be more difficult to use with one hand while I use my other hand to install the retainer and locks.

https://www.manciniracing.com/en2pivaspto.html


Last edited by jbeintherockies; 11/11/19 08:11 PM.
Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2714928
11/11/19 08:20 PM
11/11/19 08:20 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
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Cab_Burge Offline
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Cab_Burge  Offline
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Joined: Aug 2003
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Bend,OR USA
The Pro Form unit looks a lot like the original Mopar brand, those units, both BB and Sb, worked very well up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2714941
11/11/19 08:41 PM
11/11/19 08:41 PM
Joined: May 2019
Posts: 6,175
nowhere
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Sniper Offline
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Sniper  Offline
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Originally Posted by jbeintherockies



This is cheaper, but may be more difficult to use with one hand while I use my other hand to install the retainer and locks.

https://www.manciniracing.com/en2pivaspto.html



For $200 less you can slide a cheater pipe over the handle and hang a weight on it to keep the spring compressed and use two hands to do what you need to do.

Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2715333
11/13/19 05:31 AM
11/13/19 05:31 AM
Joined: Jul 2005
Posts: 384
Australia
M
Mcode69 Offline
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Mcode69  Offline
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Posts: 384
Australia
Made this up from a few bits and pieces.

6796217-IMG_1116.jpg
Re: Shaft mounted valve spring compressor tools [Re: Mcode69] #2715341
11/13/19 08:08 AM
11/13/19 08:08 AM
Joined: Jan 2003
Posts: 1,756
London, England
Gavin Offline
top fuel
Gavin  Offline
top fuel

Joined: Jan 2003
Posts: 1,756
London, England
Originally Posted by Mcode69
Made this up from a few bits and pieces.

That's pretty much what I did, I even used the stock shafts. That and some rope. Cost $0.

Re: Shaft mounted valve spring compressor tools [Re: Gavin] #2715344
11/13/19 08:42 AM
11/13/19 08:42 AM
Joined: Jan 2003
Posts: 21,050
Niles , Ohio
T
therocks Offline
oh wait.but hey.lets see.oh yeah.
therocks  Offline
oh wait.but hey.lets see.oh yeah.
T

Joined: Jan 2003
Posts: 21,050
Niles , Ohio
My son bough the one Summit sells.That was like 15 years ago.Works real nice even on heavy springs.It was fairly cheap then.Rocky


Chrysler Firepower
Re: Shaft mounted valve spring compressor tools [Re: Sniper] #2715419
11/13/19 01:04 PM
11/13/19 01:04 PM
Joined: Apr 2003
Posts: 3,496
Tulsa, Oklahoma
340Cuda Offline
master
340Cuda  Offline
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Joined: Apr 2003
Posts: 3,496
Tulsa, Oklahoma
Originally Posted by Sniper
Originally Posted by 340Cuda
Quite a bit more expensive but worth it in my opinion. Easier to use when working by yourself.

https://www.summitracing.com/parts/lsm-sc-800/overview/


Explain how that works on a shaft mounted rocker head?

There is a plate that bolts on the head, the rocker shafts need to be removed. Mine was purchased for W9 heads but my son has used it on his W2 heads, he had to make a plate but LSM sells the plate now. The main advantage to me is that it holds the spring down on its own and you can use two hands to get keepers in, out and positioned correctly.

That all being said I would check with LSM to be sure they have something that will work with your heads.

All the LSM stuff that I have is top notch.

Re: Shaft mounted valve spring compressor tools [Re: 340Cuda] #2715476
11/13/19 05:12 PM
11/13/19 05:12 PM
Joined: Dec 2004
Posts: 10,550
Rittman Ohio
fourgearsavoy Offline
I Live Here
fourgearsavoy  Offline
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Joined: Dec 2004
Posts: 10,550
Rittman Ohio
I have the LSM for my engine but I don't know if they have one for small blocks but it's worth every penny.
Gus beer

Resizer_15736823097580.jpg
Last edited by fourgearsavoy; 11/13/19 06:01 PM.

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Re: Shaft mounted valve spring compressor tools [Re: jbeintherockies] #2715870
11/14/19 07:44 PM
11/14/19 07:44 PM
Joined: Oct 2007
Posts: 733
New York
R/T1968R/T Offline
super stock
R/T1968R/T  Offline
super stock

Joined: Oct 2007
Posts: 733
New York
Home made, less than $20

DSC00237.JPGDSC00239.JPG
Re: Shaft mounted valve spring compressor tools [Re: R/T1968R/T] #2716218
11/15/19 08:15 PM
11/15/19 08:15 PM
Joined: Aug 2006
Posts: 2,487
God's Country Maryland
GODSCOUNTRY340 Offline
top fuel
GODSCOUNTRY340  Offline
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Joined: Aug 2006
Posts: 2,487
God's Country Maryland
Another self made one.

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