Results 1 to 7 of 7

Thread: Engine builders: How do I determine stroke in my 383?

  1. #1

    Engine builders: How do I determine stroke in my 383?

    I've got a 383. 4.030 bore. 350 block.
    The engine builder said he had to notch the block quite a bit so he said to get a stroker pan.
    The compression is 12.1 or 12.2 after everything
    I have SRP 140348 pistons, Eagle H-Beam 6” Rods, Eagle 4340 3.75 forged crank, Motor was bored .30.
    My question is: what is my stroke? I'm asking because I don't know what oil pan to get. I'm trying to get one that will fit with my 64 chevelle and all of the stroker pans (safe side) won't fit, so I am seeing if a stock pan will fit.

  2. #2
    Junior Member APPRENTICE
    Join Date
    Feb 2005
    your stroke is 3.75

  3. #3
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2005
    Tell City, IN
    a stock pan will work fine for a 383 as far as clearance. If you want a bigger pan for oil capacity just buy one for your chassis you don't need a stroker pan for a 383. Hope this helps.

  4. #4


    The last pan I put on there, the gasket had to be trimmed because the block had to be clearanced so I don't think a stock pan will work.

  5. #5
    Junior Member APPRENTICE
    Join Date
    Jan 2006
    Stock pan would be fine. That's the same stroke as a 400 sbc, and a stock pan works fine on that.

  6. #6
    Dont buy a cheap oil pan from e-bay. Use a factory gm oil pan, they will fit. Thats all I ever use on mine and never had a problem. I have purchased the cheap pans from e-bay and they say it will fit the 3.750 stroke crank but it wont. Keep your GM all GM.

  7. #7
    Senior Member MASTER BUILDER
    Join Date
    Jan 2008
    i would get something better than stock- extra capacity - as oil is the life blood of your motor- you can run 2 filters as well- get a extra quart that way as well

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Copyright © 2005-2016 All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy