455 forged piston

Discussion in 'Street/strip 400/430/455' started by steve murray, Dec 7, 2020.

  1. steve murray

    steve murray Well-Known Member

    Hi. Was wondering if anyone could identify this piston for me ? Motor was built around 1990 and pistons were new at time and was told 10.25 to 1 but maybe not ? Lost all the old paperwork so I have no idea. Only see a few #s on inside but tough to read ? Wrist pin area got gauled out somehow so unusable (as far as I know) so would like to see on a long shot if someone had one from an old set or could tell me what it is. It’s .030 over slug too. Any help appreciated. !
     

    Attached Files:

  2. Stg'd 2Discover

    Stg'd 2Discover Lumpty, Lumpty, Lumpty

    Those look like Speed Pro Forged 70 455 replacements with additional deep valve notches machined in.
     
  3. steve murray

    steve murray Well-Known Member

    Cool thx for reply ! I’d love to hear some other opinions as well
     
  4. BUQUICK

    BUQUICK I'm your huckleberry.

    Looks like the same Speed Pro / Sealed Power # 2362P forged pistons I bought in 1994. The L2353F later took the place of the 2362 and is shown in the 1996 catalog I have here. Someone added the valve reliefs either way.
     
    Last edited: Dec 7, 2020
  5. steve murray

    steve murray Well-Known Member

    Was a long time ago but don’t remember my machinist having cut the reliefs , but believe that’s how they were ordered , but it was 30 yrs ago ! Thx for the help guys ! Well if anyone could turn up a single .030 over piston I’d be interested in buying. Thx
     
  6. DasRottweiler

    DasRottweiler -BuickAddict-

    Curious if you have any information about piston #L2368 in that old catalog?
    Looking for dish cc if possible. Jim
     
  7. steve murray

    steve murray Well-Known Member

    So I did get a look at the 2362p sealed power pistons and they do look like a match ! Thx for lead BUQUICK !!
     
  8. 87GN_70GS

    87GN_70GS Well-Known Member

    http://v8buick.com/index.php?threads/piston-cc-73-76-and-2362p.102066/
     
    BUQUICK likes this.
  9. Stevem

    Stevem Well-Known Member

    Why don't you just have that piston and rod resized for a oversized pin?
    A difference of 3 grams or so will not play havoc with the balance to any degree that you need to fret over!
     
  10. steve murray

    steve murray Well-Known Member

    Might just do that ! Thx
     

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