350 Crank Scraper

Discussion in 'Small Block Tech' started by Dano, May 31, 2021.

  1. Dano

    Dano Platinum Level Contributor

    Not listed on their website (they do list 400-455 & 300-340) but they do make them for 350's. $89.95

    www.crank-scrapers.com Buick 350 1.jpg
     
    Mark Demko likes this.
  2. sean Buick 76

    sean Buick 76 Buick Nut

    Interesting. One of us should try it.
     
  3. Dano

    Dano Platinum Level Contributor

    I'm in the planning stages right now & would buy would rather have the crank I'm going to use in hand in case anything needs to be tailored to it.

    Speaking of which, and you've probably covered this, what's the weight difference between your steel crank vs. stock?
     
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  4. sean Buick 76

    sean Buick 76 Buick Nut

    I asked my builder last week to weigh the billet crank vs stock
     
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  5. Dano

    Dano Platinum Level Contributor

    Great - Lmk if you wouldn't mind.
     
  6. sean Buick 76

    sean Buick 76 Buick Nut

    Will do
     
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  7. Mark Demko

    Mark Demko Well-Known Member

    Interesting!
    I may have to give 'em a call
    Thanks Dano:D
     
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  8. Mart

    Mart Gold level member

    More h.p. than chrome valve covers...:D
     
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  9. patwhac

    patwhac Well-Known Member

    Dang I wish I had known about this when I had my pan already off a couple weeks ago, I could have been the guinea pig haha.
     
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  10. Dano

    Dano Platinum Level Contributor

    He said a guy ordered one a few months ago & it was the 1st time they'd made it.
     
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  11. Fox's Den

    Fox's Den 355Xrs

    remember, that is just one extra area where you can leak oil in your Hot Rod Buddies driveway, wonder how much HP it is worth
     
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  12. Dano

    Dano Platinum Level Contributor

    Idk, but I'd be shocked if the NHRA SE/SS guys weren't all running one plus a windage tray.
     
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  13. Mark Demko

    Mark Demko Well-Known Member

    I had thought about that too, my engine leaks enough as it is:rolleyes:
    BUT, that crank scraper is nice for oil control:D
     
  14. Fox's Den

    Fox's Den 355Xrs

    like I said you want that for your street car and how much hp does it save
     
  15. patwhac

    patwhac Well-Known Member

    I just remembered that I had asked Steve Reynolds about a crank scraper when I was getting my SRE oil pan made, this is what he said (copied from emails):


    "A couple of more questions about the oil pan that have occurred to me! When I took apart my 350 it didn't have a windage tray bolted to it! Is that something I should add or is that part of the new oil pan? Also does the new oil pan include some sort of crank scraper provision or should I look into making one? Lastly, does the pan come with it's own pickup or reuse the stock type pickup?"

    Best,
    Patrick


    [​IMG]
    "Hi Patrick,

    With the box and trap doors pickup option, I need to incorporate a totally custom oil pickup that will fit without interference to the rotating assembly and the trap doors themselves. This is included and part of the oil pan. By doing this option I will have baffles that cover as much of the rear sump as possible and still allow room for the oil pickup. This will definitely help with windage, but a small windage screen in the rear sump area would still be a decent addition. I'll see what I can come up with when I'm actually building the pan. It gets to be a tough thing to do with the internal oil pickup because you still need to get the pan on and off of the engine at some point! LOL The best way is to have the engine sitting in front of you, upside down with the oil pickup tube bolted in place. Then you can add a windage screen that bolts to the block instead of the pan..... much easier to do.

    With the deep skirted block (350) there isn't the need for a crank scraper like in the shallow block of the 400,430,455. I don't believe that a scraper would do much good in that application as it would sit so far away from the crank. The deep skirted block also helps with the windage situation so you don't need to go crazy with the windage screen like you do with the 455's. Like I said, once I build the pan and fit it to the block, I'll see what I can come up with for a simple windage screen that would be attached to the pan, but the best bet is for you or the engine builder to design and build one that fits the block and clears the pan."

    Steve Reynolds
    to me
     
  16. Dano

    Dano Platinum Level Contributor

    I agree that having a block sitting here/apart/upside-down would help (been a long time since I built a 350) but it seems to me that regardless of the deep skirted design that a scraper would be beneficial.

    I'd like to see the inside of your pan & did you wind up fabricating a windage tray/screen?
     
  17. Fox's Den

    Fox's Den 355Xrs

    I wouldn't do this with the crank scraper unless I was going to campaign the car in racing and needed every ouch of ET
     
  18. Dano

    Dano Platinum Level Contributor

    My goal on my next build is to eek out every ounce of HP w/in the (self-imposed) parameters of 100% stock appearing and remaining streetable & I see this as free HP. I'd like to build a windage screen/tray that goes below it and also attaches to the bottom of the block if poss (again, having a block in front of me will help). Between the two parts & the extra gaskets I could inconspicuously (yes, wouldn't quite be stock appearing) drop the stock pan just a little which would also help another smidgen - If I can't get all that to seal properly, I seemingly have no business building an engine:).
     
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  19. patwhac

    patwhac Well-Known Member

    I ended up using a stock windage tray from another 350 parts engine. I had to drill and tap the block for it. Here are pictures of the guts of an SRE pan (modified stock I believe) that Steve sent me back when he was making mine. Not my pan (mine is aluminum), but mine looks very similar inside:

    [​IMG]

    [​IMG]
     
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  20. Dano

    Dano Platinum Level Contributor

    Interesting and for my purposes even better being a stock pan. Thx for posting!
     
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