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Thread: Rebuilding 94 SC engine for my 92 SC

  1. #1
    Join Date
    Feb 2016
    Posts
    28

    Rebuilding 94 SC engine for my 92 SC

    Rebuilding 94 SC engine for my 92 SC
    Hey I need to know what are the differences between the 92 Sc engine and the 94 Sc engine. Im keep it stock so that way it will be easier to make it work. I ordered a 92 timing cover and oil pan, I noticed there was a sensor on the bottom of the 94 block is tName:  IMG_20190417_172753.jpg
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Size:  867.8 KBhat the oil sensor? If so can I just take it out and put a bolt in its place right? The oil sensor on my 92 is on the oil pan. And also the 92 doesnt have egr and the 94 does, is there a easy way to work around that?Name:  MmsPicture_20190416120138.jpeg
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Size:  877.0 KBName:  MmsPicture_20190416115955.jpeg
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    Last edited by Kevin92; 04-18-2019 at 02:22 AM.

  2. #2
    Join Date
    Jun 2011
    Location
    San Diego
    Posts
    428
    Looks like your knock sensor. Youíre all over the crank sensor trigger ring deal. With the 94 you gain floating piston pins with the little retainer deals in the piston instead of the heat up conn rod and press on standard pistons. Also stronger connnecting rods as well as a windage tray. Thatís all I remember off hand. Iím sure someone else will chime in. Good luck with your build!

  3. #3
    Join Date
    Dec 2010
    Location
    Zephyrhills F.L.
    Posts
    218
    Ya, that's your knock sensor.

  4. #4
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,641
    If you use your 92 exhaust manifolds and then just plug the port in the blower inlet plenum that will solve the EGR connection.

    Oh, and be sure to fully scrape and brake clean off all the paint on any gasket surfaces or they'll likely leak everywhere. Bare metal only.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  5. #5
    Join Date
    Feb 2016
    Posts
    28
    Thanks for the replies everone, it makes me feel welcomed here. What is the crank sensor trigger ring deal? The crank sensor bolts onto the timing cover. Ill make sure the engine will be cleaned up for the gaskets and seals. Heres some pics of my car, I know its not as nice as alot of peoples cars on here butName:  20190429_165331.jpg
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Size:  4.60 MB I still enjoy driving it around. Name:  20190429_165213.jpg
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Size:  4.16 MB
    Last edited by Kevin92; 04-30-2019 at 05:16 PM.

  6. #6
    Join Date
    Apr 2002
    Location
    Franklin,Mass
    Posts
    430
    Looks good to me Kevin!

    Joe
    It's not a 97 Sport, it just looks like one!

  7. #7
    Join Date
    Feb 2016
    Posts
    28
    I really need help to find the best pistons for a 94 block, with the floating piston pin. I just want to keep my SC stock on my 92 SC but use the 94 supercharger. I can only find the sealed power pistons(H675CP) but it doesn't say if it has floating pins or not. I got the block hydrofluxed, honed and heads are shaved. I just need to get the block shaved so I can use MLS felpro gaskets. Can someone help me find the pistons I need? Thank you.

  8. #8
    Join Date
    Feb 2016
    Posts
    28
    Does it look safe to reuse my old pistons? This one looks the worst. Ill get it cleaned up better and send more pics later.Name:  MmsPicture_20190709155609 (1).jpeg
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  9. #9
    Join Date
    Oct 2018
    Location
    Nova Scotia, Canada
    Posts
    98
    You already have had the machine work done to the block so now is not the time to cheap out on such an important piece. Just get new pistons, it looks like a chunk is missing out of that one anyway. You can get a set of hypereutectics from Rock Auto for less that 200 USD or get something better from a place like Super Coupes Unlimited. You will likely need to re-balance the rotating assembly with the piston replacements as well. Unless you go premium aftermarket you probably won't get stock replacement pistons with full floating pins so don't get hung up on that because they may not fit your connecting rods if you do find them. Press fit piston pins will suit you just fine.

  10. #10
    Join Date
    Feb 2016
    Posts
    28
    Does anyone know about Morana racing pistons? I could get floating pistons $400 shipped.

  11. #11
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,641
    All replacement pistons come with the option for locks. Whether or not you use them is determined by the rods, and 94 rods are bushed requiring locks. If you want stock original used pistons in good condition I have a set ready to go for $100 shipped. Rock auto is the cheapest place to find a replacement piston new as well as the correct ductile iron rings. Any non OE replacement piston is going to require either overboring the block or rebalancing the crank or both. As posted above, there is no cheap way out other than to use an OE or OE replacement.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  12. #12
    Join Date
    Feb 2016
    Posts
    28
    Im going to replace the piston with the one from XR7 dave. All my other ones are good, thank you guys for helping me out.

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