Welcome to Club Hot Rod!  The premier site for everything to do with Hot Rod, Customs, Low Riders, Rat Rods, and more. 

  •  » Members from all over the US and the world!
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and hundreds of thousands of posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

 

Thread: making piston lighter
          
   
   

Reply To Thread
Results 1 to 4 of 4
  1. #1
    bugy is offline CHR Member Visit my Photo Gallery
    Join Date
    Mar 2011
    Location
    guadalajara
    Posts
    5

    Question making piston lighter

     



    i got this 194339 piston and need to make it lighter 14 g where should i drill out?

  2. #2
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
    Join Date
    Feb 2006
    Location
    Bartlett
    Posts
    6,776

    a little more info would help--what type motor , what company piston---

    It will take removal of a lot of aluminum for 14 gr--if you could lighten the small end of the rod (iron) it won't take so much mass. maybe can be done with a lighter wrist pin also

  3. #3
    bugy is offline CHR Member Visit my Photo Gallery
    Join Date
    Mar 2011
    Location
    guadalajara
    Posts
    5

    Quote Originally Posted by jerry clayton View Post
    a little more info would help--what type motor , what company piston---

    It will take removal of a lot of aluminum for 14 gr--if you could lighten the small end of the rod (iron) it won't take so much mass. maybe can be done with a lighter wrist pin also
    this is a chevy sb 434 piston is a JE part number 194339

  4. #4
    pat mccarthy's Avatar
    pat mccarthy is offline CHR Member/Contributor Visit my Photo Gallery
    Join Date
    Apr 2005
    Location
    bay city
    Posts
    10,546

    Quote Originally Posted by bugy View Post
    i got this 194339 piston and need to make it lighter 14 g where should i drill out?
    i do not drill.. mill or lathe like jerry said piston pins . pin end on the rods if a h beam or I fully machined rod. your going to cut alot to get 14 grams where most times there not much more then 5 grams to play with .on the piston s you can do a window in the skirt and out side by the pin go in the pistons bottoms. buying pistons that are lighter would be cheaper in the long run .i use a BHJ piston vise to hold the pistons on the mill.i have re work pistons but there better ways to spend a days time . if your trying to get to part #271063 that s 383 grams yours is 407 grams the pro series forging is not the same. you will play hell getting yours that lite+$$ and still have some thing that will hold up if you try re working the piston look at some pins you can take some off the pin end of the rod .lite pin . alot of screwing around when 271063 will do it as a drop in
    Last edited by pat mccarthy; 03-18-2011 at 05:56 PM.
    Irish Diplomacy ..the ability to tell someone to go to Hell ,,So that they will look forward to to the trip

Reply To Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink