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Technical The Case of the Hundred Dollar SBC

Discussion in 'The Hokey Ass Message Board' started by blowby, Sep 22, 2019.

  1. blowby
    Joined: Dec 27, 2012
    Posts: 7,193

    blowby
    Member
    from Nicasio Ca

    Yesterday while picking up lumber across the bay I also grabbed this as a potential replacement for my tired mill. Supposedly rebuilt, obviously in race trim as evidenced by the yellow oil pan and valve cover wing nuts, although the two barrel is a little misleading. Victim of an LS swap, seller said it came in the car and he never even ran it.

    The flex plate, starter, fuel and water pumps, valve and timing covers are new so that probably covers my hundred right there. Who knows, cam went flat on break in, cracked something or other, rattle can rebuild? Place your bets, gonna blow it apart today. Appears to be a lo po

    0922191031a_HDR.jpg 0922191033_HDR.jpg
    hhhh.JPG
     
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  2. Heck, a guy can easily blow $100 on a bad date... I think the risk:reward on this is agreeable. On this Sunday, here's hoping the gods of internal combustion are smiling down on you!

    Party On
     
  3. A Boner
    Joined: Dec 25, 2004
    Posts: 5,816

    A Boner
    Member

    I hope your good luck continues.....I'm thinking it will.
     
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  4. Someone took the time to either scrape off or mask the exhaust ports. Good sign?


    Sent from my iPhone using The H.A.M.B. mobile app
     
    283john, loudbang and Humboldt Cat like this.

  5. Run a compression check. crank it over without spark plugs enuf to see if it build oil pressue. and if everything is ok. Fire it up.
     
  6. Fordors
    Joined: Sep 22, 2016
    Posts: 3,236

    Fordors
    Member

    If it was original to an ‘82 Blazer it would be a 305. Not the best for a performance build, but nevertheless you got a lot of stuff for $100.
    The heads look correct for that era, can you give the casting number for the block? Or even better the suffix letters at the front or the block.
     
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  7. oldiron 440
    Joined: Dec 12, 2018
    Posts: 1,697

    oldiron 440
    Member

    Could be a pot of gold or wooden nickels........
     
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  8. blowby
    Joined: Dec 27, 2012
    Posts: 7,193

    blowby
    Member
    from Nicasio Ca

    Thought about running it on the stand..carbon on the valves and piston tops, not fresh. Probably cheap insurance to pull it down, might be just a rattle can rebuild, though the freeze plugs are fresh brass.

    Could be a 305..

    0922191104_HDR.jpg 0922191211a_HDR.jpg 0922191214_HDR.jpg
     
  9. MeanGene427
    Joined: Dec 15, 2010
    Posts: 1,533

    MeanGene427
    Member
    from Napa

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  10. Humboldt Cat
    Joined: Feb 20, 2003
    Posts: 2,231

    Humboldt Cat
    Member
    from Eureka, CA

    What's the 6 or 7-digit stamp on the back upper deck o the block? Just curious

    Sent from my SM-G930R4 using The H.A.M.B. mobile app
     
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  11. flamedabone
    Joined: Aug 3, 2001
    Posts: 4,871

    flamedabone
    ALLIANCE MEMBER

    Yellow oil pan and valve cover wing nuts = full race. Might also be Vette motor.

    Unless there is a rod sticking out of the block, it is definitely worth 100 bucks.

    Nice score, -Abone.
     
  12. Doublepumper
    Joined: Jun 26, 2016
    Posts: 771

    Doublepumper
    Member

    Isn't the V for Flint factory? Last four, 9800 Target Master....?
     
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  13. blowby
    Joined: Dec 27, 2012
    Posts: 7,193

    blowby
    Member
    from Nicasio Ca

    Casting number hard to read. Looks like 14016379

    0922191257_Burst01_resized.jpg
     
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  14. BJR
    Joined: Mar 11, 2005
    Posts: 6,705

    BJR
    Member

    Or a $100 date could blow you!:D
     
  15. Doublepumper
    Joined: Jun 26, 2016
    Posts: 771

    Doublepumper
    Member

    That casting number would be a '78-'85 350.
     
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  16. blowby
    Joined: Dec 27, 2012
    Posts: 7,193

    blowby
    Member
    from Nicasio Ca

    Thanks, glad it's a 350. Yep, 4.000 bore. Definitely not fresh. No ridge though, and some faint hone marks. Guides tight on the two valves I checked. Some lifter wear. Are those 4 relief pistons stock stuff? Thin steel shim head gaskets. Looks like pretty low compression.

    Probably pull the timing cover, pan and go from there.

    0922191523_Burst01.jpg 0922191523_HDR.jpg
     
  17. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 5,346

    Ebbsspeed
    ALLIANCE MEMBER

    Looks like one of those cylinders had some moisture in it. Is it light surface rust?
     
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  18. chevy57dude
    Joined: Dec 10, 2007
    Posts: 5,991

    chevy57dude
    Member

    Yep. Corvette engine.
    Seriously, good score.
     
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  19. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 25,735

    Jalopy Joker
    Member

    a good number of years ago had a '65 Chevy Nova SS with a tired 350 - spotted an ad in a throw away advertising news paper : 327 Chevy Rebuilt $300 - was first to call #, and is was not too far away - called a couple of guys to meet me at the address and help load in my family station wagon - struck gold! - was a fresh rebuild by a local big name engine machine shop, with receipts - built to factory specs for 365 HP, with new cam, valves, pistons, etc !! right place at the right time - Nova flew like a bat out of Hell with it - had 350 trans beefed up to go behind it - really needed positraction, because would pull sideways from a dead stop
     
  20. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 1,118

    427 sleeper
    ALLIANCE MEMBER

    If that's ALL you go home with, you WIN!!!! HAHAHA!!!!
     
  21. ... yep. Targetmaster 350. "Doublepumper" for the win. Good job.

    Congrats' ... Blowby, prolly' a 4 bolt main coming.
     
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  22. blowby
    Joined: Dec 27, 2012
    Posts: 7,193

    blowby
    Member
    from Nicasio Ca

    Yeah one pot on the other side too. Looks like rainwater, nothing serious.

    Targetmaster then eh? Thanks DP. Well, good enough for my needs. It will get the Weiand huffer that's on my tired 305 now. The one thing I'd like to do is fit a decent cam.

    Thanks for the replies.

    0319180901_resized.jpg
     
  23. choptop40
    Joined: Dec 23, 2009
    Posts: 3,728

    choptop40
    Member

    Good score on that one...Squirrel on here is a whiz at engines...He gets motors running that are left for dead only replacing what's necessary...
     
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  24. big duece
    Joined: Jul 28, 2008
    Posts: 6,104

    big duece
    Member
    from kansas

    Good night of drinking would have exceeded that amount back in the day, thanks to some lush friends. Nothing to show for it now, but faint blurry memories. Is it a 4 bolt main block?
     
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  25. Speed Gems
    Joined: Jul 17, 2012
    Posts: 2,940

    Speed Gems
    Member

    Chrome valve covers and a 2 BBL manifold say "circle Track" engine to me. Probably a Targetmaster crate motor for one of the lower classes like pure stock especialy with the exaust manifolds.
    EDIT: What casting # are the heads?
     
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  26. tubman
    Joined: May 16, 2007
    Posts: 5,371

    tubman
    ALLIANCE MEMBER

    Aren't they all?:rolleyes:
     
  27. Ah... Another SBC goes the way of the flathead. o_O
     
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  28. Mr48chev
    Joined: Dec 28, 2007
    Posts: 28,121

    Mr48chev
    ALLIANCE MEMBER

    A bit of clean up, a rering kit with rings, bearings and gasket plus a cam and lifters an a timing set and you are in business. Cam, lifters and timing set will probably be the spendy part of the deal.
    I've got to laugh at some of the guys wild ass assumptions though.
     
  29. Baumi
    Joined: Jan 28, 2003
    Posts: 2,668

    Baumi
    ALLIANCE MEMBER

    image.jpeg I'd say you got a pretty decent engine for your 100 bucks.
    I picked up an old 283 yesterday. It was cheap too , but it used to be inhabited at one point.... I have never seen a push rod rusted out, hahahaha
     
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  30. nunattax
    Joined: Jan 10, 2011
    Posts: 2,386

    nunattax
    Member

    rat or mouse motor?
     
    alanp561, Baumi, Deuces and 5 others like this.

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