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#1
09-01-2023, 09:24 PM
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I don't recall seeing any Yenko blocks with screw-in style freeze plugs. Mine has regular plugs. I could be wrong. That block is also missing the extra headbolts. If they were machined off, I wonder why.
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WOT Last edited by Igosplut; 09-01-2023 at 09:28 PM. 
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#2
09-02-2023, 01:31 PM
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06017 is probably not Casting Date.
Ive seen it on other Blocks. There was one for sale on the Corvette Forum Casting date 030169 Tall deck That may explain why the Block here does not have a cutouts for Sleeve flanges. It has been decked down to short deck? Ford Blue? Have they try to run it with Ford Heads These cheating Ford owners
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#3
09-02-2023, 01:41 PM
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Tall deck Can Am 4.440 Bore Corvette Forum
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| The Following 5 Users Say Thank You to Carleen For This Useful Post: | ||
Big Block Bill (09-02-2023), big gear head (09-03-2023), dykstra (09-04-2023), olredalert (09-02-2023), YenkoYS-199Stinger (09-05-2023) | ||
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#4
09-02-2023, 07:29 PM
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I was told these were Yenko markings on a block I have here. Does it have stampings like these?
Jason
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| The Following User Says Thank You to SuperNovaSS For This Useful Post: | ||
dykstra (09-04-2023) | ||
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#5
09-04-2023, 04:15 PM
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Siamese block that have SY Stampings and no Sleeves.
Last edited by Carleen; 09-04-2023 at 04:56 PM.
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| The Following 2 Users Say Thank You to Carleen For This Useful Post: | ||
big gear head (09-05-2023), dykstra (09-05-2023) | ||
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#6
09-04-2023, 04:24 PM
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Press in frost plug
Last edited by Carleen; 09-04-2023 at 04:34 PM.
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| The Following 6 Users Say Thank You to Carleen For This Useful Post: | ||
big gear head (09-05-2023), dykstra (09-05-2023), Igosplut (09-06-2023), John Brown (09-04-2023), L78_Nova (09-05-2023), YenkoYS-199Stinger (09-05-2023) | ||
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#8
09-08-2023, 04:42 AM
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I just checked the old ad I had here for my engine, and the person you want to look up is named Mark Gillepsie for decoding of those letters (he has a book for that). I think he is in Indiana. He was the jedi master of info on Yenko ZL-1 blocks. The letters decode to an engine number. All letters like yours.
I could be wrong, but 90% sure I am right. Good luck. -bob Last edited by black69; 09-08-2023 at 02:10 PM.
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#9
09-08-2023, 11:45 AM
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So no one knows what
06017 means on these blocks? Also it's strange for the Yenko blocks, they stamp SY and not YS then 2 other letters that could be someone's initials?
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'58 Apache pick up restomodding with twin turbo 522 '78 Z28 4sp being restored '78 Z28 32,000 survivor, Og Yellow paint, AC. '70 W30 convert TRIBUTE '70 CANADIAN Nova SS396 L78 Pro Street '69 CANADIAN Nova SS 396/350 hp '67 CANADIAN Nova SS 427 10 sec. driver '66 CANADIAN Nova SS Race Car '69 FIREBIRD Tubbed Racecar '61 CANADIAN Pontiac Bubble top 409+/4sp (SOLD) '31 ALL STEEL Chevy P.U. GONE (EX-WIFES NOW)
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#10
09-08-2023, 02:14 PM
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Quote:
Last edited by black69; 09-08-2023 at 02:24 PM.
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