Stamped rocker shaft systems
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 11 of 11
500, 472, 425, 368 Discussion, Stamped rocker shaft systems in Cadillac Engine Technical Discussion; Recently in another thread, JWalker mentioned that the stamped rocker systems leave you losing a bit of valve lift. I, ...
  1. #1
    Angela Desmond is offline Cadillac Owners Fanatic
    Join Date
    Apr 2003
    Location
    new windsor new york
    Age
    57
    Posts
    193

    Stamped rocker shaft systems

    Recently in another thread, JWalker mentioned that the stamped rocker systems leave you losing a bit of valve lift. I, being the El Cheapo that I am, tried to use one of these systems on my 425 project. At first I thought the low valve lift that I was measuring was due to the fact that I needed a different length attachment for my dial indicator to line it up properly with the valve stem. Well, now I have said attachment and the valve lift is still pitifully low! About .100" low. That's way too much for my liking so I'm returning the rockers and going for the cast system instead. It's more money, but nobody steals my lift and gets away with it! Just thought I'd let anyone out there considering using these rockers know what's up with them. They are advertised as 1.7:1 ratio but measure in at more like 1.45:1. Now I just hope I still have the right piston to valve clearance with the increase in lift.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    lux hauler is offline Cadillac Owners Connoisseur
    Join Date
    Jan 2003
    Location
    Ohio
    Age
    44
    Posts
    1,258

    Re: Stamped rocker shaft systems

    I'm seriously concidering putting my stamped set on eBay and going with the cast set-up also. They're an improvement over the stock rockers but not very good from a performance standpoint.

  4. #3
    Angela Desmond is offline Cadillac Owners Fanatic
    Join Date
    Apr 2003
    Location
    new windsor new york
    Age
    57
    Posts
    193
    Thread Starter

    Re: Stamped rocker shaft systems

    I'm just sending mine back to Al at MTS and getting the cast version from him. Did you notice a lack of lift also? Or you're taking our words for it and that's enough for you. I wish I'd have known about this before I got involved with them.But then, I know some men I could say the same thing about.

  5. #4
    lux hauler is offline Cadillac Owners Connoisseur
    Join Date
    Jan 2003
    Location
    Ohio
    Age
    44
    Posts
    1,258

    Re: Stamped rocker shaft systems

    Quote Originally Posted by Angela Desmond
    I'm just sending mine back to Al at MTS and getting the cast version from him. Did you notice a lack of lift also? Or you're taking our words for it and that's enough for you. I wish I'd have known about this before I got involved with them.But then, I know some men I could say the same thing about.
    I didn't measure anything......just going off what I've heard and read. I was told that the cast ratio would work much better with my cam.

    BTW.....not all men are bad.

  6. #5
    Angela Desmond is offline Cadillac Owners Fanatic
    Join Date
    Apr 2003
    Location
    new windsor new york
    Age
    57
    Posts
    193
    Thread Starter

    Re: Stamped rocker shaft systems

    Really pays to do your homework, doesn't it! I know not all guys are bad. I figure men are like engines. Some are really strong, but use up lots of gas and need lots of maintainance, some are weak, but get good milage; some are new and need to be broken in; some are old but still run great and strong; some are fun to drive and some are a drag; and some just don't work right from the moment they're assembled to the moment you give it the heave-ho....

  7. #6
    lux hauler is offline Cadillac Owners Connoisseur
    Join Date
    Jan 2003
    Location
    Ohio
    Age
    44
    Posts
    1,258

    Re: Stamped rocker shaft systems

    Quote Originally Posted by Angela Desmond
    Really pays to do your homework, doesn't it! I know not all guys are bad. I figure men are like engines. Some are really strong, but use up lots of gas and need lots of maintainance, some are weak, but get good milage; some are new and need to be broken in; some are old but still run great and strong; some are fun to drive and some are a drag; and some just don't work right from the moment they're assembled to the moment you give it the heave-ho....


    I guess the same could be said about some females.

  8. #7
    Angela Desmond is offline Cadillac Owners Fanatic
    Join Date
    Apr 2003
    Location
    new windsor new york
    Age
    57
    Posts
    193
    Thread Starter

    Re: Stamped rocker shaft systems

    Maybe more so

  9. #8
    EGLuder's Avatar
    EGLuder is offline BAD EMAIL ADDRESS
    Join Date
    Dec 2003
    Location
    Chattanooga, Tennessee
    Age
    34
    Posts
    4

    Re: Stamped rocker shaft systems

    Quote Originally Posted by Angela Desmond
    . Now I just hope I still have the right piston to valve clearance with the increase in lift.
    do you have the engine yourself or is someone else assembling it for you?

  10. #9
    Angela Desmond is offline Cadillac Owners Fanatic
    Join Date
    Apr 2003
    Location
    new windsor new york
    Age
    57
    Posts
    193
    Thread Starter

    Re: Stamped rocker shaft systems

    Now, Now.. You wouldn't be wondering if I'm building the engine myself because I'm a "girl" , would you?

  11. #10
    Mark -- is offline Cadillac Owners Member
    Join Date
    Jan 2004
    Posts
    10

    Re: Stamped rocker shaft systems

    Hi,

    If my research is correct, Two "other" engine rocker can be adapted to the big Caddy;

    1) A Buick rocker (Probably the Stamped one talked about) And this is the one with less ratio then orginal better at RPM

    2) The Ford 352 - 390 (FE) engine rockers are shaft design and adaptable to the Caddy (I believe these are Cast Rockers with a higher then stock ratio.

    Then there's the Custom built $1,000 type

    I would be interested to see if anyone has modified the Ford rockers

    Thanks,

    Mark --

  12. #11
    Angela Desmond is offline Cadillac Owners Fanatic
    Join Date
    Apr 2003
    Location
    new windsor new york
    Age
    57
    Posts
    193
    Thread Starter

    Re: Stamped rocker shaft systems

    The Ford type is what I'm going to go with

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting