727 to 518 swap and parts

Engine, Transmission & Driveline

  1. 65sporty

    65sporty Senior Member

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  2. commando1

    commando1 Old Man with a Hat

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    Great tech article. Thanks.
     
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  3. mr. fix it

    mr. fix it Senior Member

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    Thanks for posting this.:thumbsup:
     
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  4. 70bigblockdodge

    70bigblockdodge Old Man with a Hat

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    Hard to fit that behemoth in a car, C body would be the easiest and you may still have to cut the floor.
     
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  5. Dana

    Dana Member

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    great read, learned something before 8 this morning
     
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  6. Darter6

    Darter6 Member

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    I have been thinking about this for my 88 D350 Ram. THANKS !
     
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  7. 1978 NYB

    1978 NYB Old Man with a Hat

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    I use the 518 hard plastic oil pan gasket on my 727's. Reusable and never leaks.
     
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  8. polara71

    polara71 Old Man with a Hat

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    pardon my ignorance, isnt this only for small blocks?
     
  9. Dana

    Dana Member

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    yes, but there is a conversion bellhousing available. you cut off the case at the pump and bolt on the big block bell from j.w.
     
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  10. polara71

    polara71 Old Man with a Hat

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    Who cuts it off? Is there a dotted line to follow?

    I dont think id be doing this
     
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  11. Dana

    Dana Member

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    Suprisingly simple actually. You can cut as far in front of the pump bolts as you feel comfortable, then grind back flush with the pump. It bolts on with longer pump bolts that are supplied IIRC.
     
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  12. 73Coupe

    73Coupe Active Member

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    Best when done with a sawzall with a bent blade, and the line gets straighter after a few beers...
     
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  13. 66Newyorker

    66Newyorker Member

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    The PATC 518 convention is for small blocks. Ultra bell is one option. PATC also sells an adapter kit for 518 small block to big block engine.
     
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  14. Slantsix

    Slantsix Active Member

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    What i have read. B/E bodies, no need to cut floor. Only modify transmission cross member. A-bodies need little bit more work, but no need to cut floor.
     
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