350 Crank Scraper

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

  1. Dano

    Dano Platinum Level Contributor

    Saw almost zero 350's @ the Nationals. We gotta change that & I know some guys besides myself that are working to do so. I have 2 350 GS's - One is an orig. 4-sp. car & the other an auto. Last one that I raced was a 4-sp. I've wondered the same with respect to the v6 vs. 350. Obviously all the v6 are turbos - Forced induction may be what the 350 needs to be really quick. I want to see what a NA streetable stock appearing one can do - It's my own thing. A lot of the little things I did on my last 350 build were tips gleaned from the v6's.

    I'll be over to park in your driveway w/it when it's done, lol.
     
    Fox's Den likes this.
  2. stk3171

    stk3171 Well-Known Member

    that looks like a good scraper. where can I get one? I had to make my own years ago.
     
    Dano likes this.
  3. Dano

    Dano Platinum Level Contributor

    I posted a link in the OP. Please report back if you get one!
     
  4. patwhac

    patwhac Well-Known Member

    I know very little about drag racing but I would guess the V6 cars are all much lighter (Regals?) than our larger A-bodies? That and boost?
     
  5. DaWildcat

    DaWildcat Platinum Level Contributor

    Curious here, too. Happy to learn anything I can.

    The kid I was in the '80's reading everything I could get my hands on said "do the crank scraper", but that was on my '67 430, where the pan rail was really close to the crank centerline.

    So, I found piece of galvanized sheet metal (don't ask me to remember the gauge, probably thicker than it needed to be) and started a trial fit on my shortblock. Not difficult to do with saws and a rotary grinder.

    The point was, get the scraper to be as close as possible to the bottom reciprocating assembly without touching anything, plus a little more for safe keeping.

    Did it Help? Hell, I don't know, but it was fun. Did the same on a windage tray. Center sump mind you, trying everything to keep the pickup covered!

    As far as sealing, no prob. One can get creative with sectioning gaskets and putting things together with minimal RTV.

    Devon
     
    Steve Reynolds, patwhac and Dano like this.
  6. Dano

    Dano Platinum Level Contributor

    Not a huge weight advantage IIRC between an '86 GN & a '70-2 Skylark but the boost (& intercooler) yes!
     
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  7. Dano

    Dano Platinum Level Contributor

    www.crank-scrapers.com
     
  8. Mark Demko

    Mark Demko Well-Known Member

    There really isnt a huge difference in weight between the A and G bodies, maybe a couple hundred pounds.
     
    patwhac likes this.
  9. Dano

    Dano Platinum Level Contributor

    Depends on the A-Boby - My stripper GS 350 is a few hundred pounds less than a loaded GS 455.
     
    Mark Demko likes this.
  10. sean Buick 76

    sean Buick 76 Buick Nut

    My plan is to weld a few tabs onto the block girdle to hold the scraper and it would be thin stainless steel with Teflon for the scraping surfaces.
     
  11. Buick#455

    Buick#455 Well-Known Member

    Waaa waaaaa waaaaaaaa! Look who's crying now......
    Run your mouth, not your car & state, I have nothing to prove......
    Sounds like crying to me.
     
  12. Fox's Den

    Fox's Den 355Xrs

    Track is open ahole#salt 455. go find something to do.
     
  13. Steve Reynolds

    Steve Reynolds SRE Inc

    I agree with Devon........ and that's what I was trying to convey in my response from years ago. The crank scraper on a 350 is so far from the center line of the crank, I really wonder how effective it will be? I'd have to lay it out in CAD to have a good look that the geometry...........
     
    Mart likes this.
  14. Steve Reynolds

    Steve Reynolds SRE Inc

    Thinking about it a little, I would think that the scraper should be on the same plane as the pan rail until it clears the casting, then it should be angled toward the crank center line. This would be a much more effective scraper.
     
    Dano likes this.
  15. Buick#455

    Buick#455 Well-Known Member

    Last time I will state this, but appears Fox's Den can't read. Track is not Open..... Maybe where you live it is, but as I have stated in the past, the track here, is closed due to covid, may open up in the fall, maybe not. Maybe I'll load up the trailer & hit the track in WA state? Oh, that's a huge NO, the Border is closed, mostly like open for Fox's Den, just no body else in North America. Mister I have nothing to prove..... Seems like you need to take your own advice & find something to do. Must have hit a nerve eh??? Look who's calling people names NOW........
     
  16. Fox's Den

    Fox's Den 355Xrs

    cry me a river you started this not me I made a comment and you didn't like it.
    and this is the reason why you said anything to me in the first place
    you just sticking up for your buddy up north I get that but he has been here since 2004 no turbo motor. since then I put in a trans and nitrous and ran the living piss out of it.

    I get on here and I give comments, support or show you how to put a part on or a process on which to fix a carb or whatever it is on here YOU on the other hand like to come on here and bash me, I don't care do what you will.

    I had already resolved the issue with Dano way back. We good. what's your problem

    frustration ha ha, I saw the post of your car and I don't get on A**book so why don't you just put it here. I still got ya beat. lol

    I would buy the crank scraper if I was you that way you might get that car into the 11's right now it is a 12's car and I can clean that up.
    The only reason you come after me is because I go after Sean about building his turbo motor and it just galls your a** don't it.
    you have been doing this at me for what 2 years now go back and check your posts buddy it is the only time you ever said anything to me

    so go take a hike!!

    and buy a crank scraper you might need it just look out your front window I am waving at ya.

    and for the record I know that Sean got married and had a child since 2004 so I know that this Always takes a front seat to the projects that you want to do in life so I do not fault him for that.

    Plus I had Pm'd him more than 2 years ago telling him I would Not bash his turbo car by not getting it ready I have been able to do a good job of that so far. When he gets it done it will be more than likely his son driving it. Because those kids come first

    that's it I am done got it?
     
    Last edited: Jun 13, 2021
  17. Buick#455

    Buick#455 Well-Known Member

    Ahhhhhh, guys poor Grumpy doesn't like getting bashed, only he can bash people..... Makes sense. Shows your true character. Bahahaha!
     
  18. DaWildcat

    DaWildcat Platinum Level Contributor

    Steve, excellent thought.

    So, attached to the SBB pan rail means a quick upturn on the scraper to get close to reciprocating stuff. In that case it'll take a sheet metal brake and a sheet metal gauge heavy enough to not be flopping around, and to survive fatigue. THAT might be a challenge. Uncharted territory.

    Devon
     
  19. Fox's Den

    Fox's Den 355Xrs

    I thought those stroker motors could use it since from what I hear they can spin over 7 grand I know one that can't get past 6500 and will probably go poof. If I had a stroker motor it would be spinning to 7500 like I have heard before but...

    no guts no glory poof!
     
    Mark Demko likes this.
  20. Mark Demko

    Mark Demko Well-Known Member

    Gee wizz, I wish you guys would make up yer mind, scraper, no scraper:rolleyes:
    A novice like me needs to know:D
    I have my sweet aluminum pan from Steve Reynolds here ready for install when I get my aluminum heads, and the summer is going fast:(
     
    Mart likes this.
  21. Jim Blackwood

    Jim Blackwood Well-Known Member

    I just started on the main cap stabilizer for my stroker 300/346, I'll get some photos later. It's a stroker so will it go poof? Doubt it but you never know do ya? Got to thinking it could incorporate a scraper. The one I made for the 340 was 1/4" thick and intended only to anchor the ends of the cap studs to the pan rails and control cap walk. Looks like it's been working fine. The 300 of course has closer stud spacing due to the smaller main journals. This time I'm making it out of 1/8" stainless and if I clearance it just enough for the crank and rod throws it may do a reasonable job as a scraper. Just a thought at this point, as I haven't set the crank in the block yet.

    Jim
     

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