CHEVY 350cu in WITH BLOCK CASTING#14010207 NEED SOME FAQS - Hot Rod Forum : Hotrodders Bulletin Board
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Old 08-28-2011, 01:13 PM
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CHEVY 350cu in WITH BLOCK CASTING#14010207 NEED SOME FAQS

HI GUYS I RECENTLY BOUGHT A CHEVY 350 cu in WITH BLOCK CASTING#14010207 I DID SOME RESEARCH AND CAME UP WITH THE FOLLOWING:
ITS A 4BOLT MAIN
L82 SERIES 350 cu in
USED FROM 1970-1972
THE HEADS HAVE CASTING #3998993 AND SOME "Hecho en Mexico" EMBEDED ON THEM
CAN I STROKE THE ENGINE WITH A 408 STROKER KIT AND USE THE SAME HEADS WITH A LITTLE TWEAKING TO THEM??
ADVISE ME THANX

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Old 08-28-2011, 03:17 PM
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Hecho en Mexico = GM Performance or Goodwrench engine.
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Old 08-29-2011, 03:33 AM
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Hi Thanx So Is It A Good Motor ?
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Old 08-29-2011, 04:18 AM
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Casting #--- CID--- Years---- HP--------- Comments------------------
14010207---350----80-85-- 155-255---- car & Truck 2 & 4-Bolt Passenger stick

http://www.chevytech.info/2c42o16.html

Casting #--- CID----- Years---- Valves----------------- Comments----
3998993-- 307/350--- 68-79 1.71/1.50 1.94/1.50---------- 76cc--------

http://www.chevytech.info/3c3998993.html

408 Stroker for a SBC350 Block??
Would take a 4.030" Bore X 4.00" Stroke.
A 4.030" Bore with 3.75" Stroke crank would be much easier = 383
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Old 08-29-2011, 05:24 AM
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Thanx Alot And I Believe That It Is A Performance Block Manufactured By Gm Performance Goodwrench?
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Old 08-29-2011, 05:39 AM
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Quote:
Originally Posted by KARISH
Thanx Alot And I Believe That It Is A Performance Block Manufactured By Gm Performance Goodwrench?
No. It's a run-of-the-mill production block w/nothing "performance" about it any more than any other similar production block.

If you want/need a truly performance block, look into the Bow Tie and Dart blocks for starters.
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Old 08-29-2011, 06:08 AM
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Ok Thanx But I Can I Still Put The 408 Stroker Kit On It
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Old 08-29-2011, 07:16 AM
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That much stroke in a stock block will require a LOT of internal grinding and then the issue of camshaft clearance comes up. Honda journals and H-beam lightweight rods maybe.
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Old 08-29-2011, 07:42 AM
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Quote:
Originally Posted by KARISH
Ok Thanx But I Can I Still Put The 408 Stroker Kit On It
Plan on using a partial fill of Hard Blok.

http://www.carcraft.com/techarticles...d/viewall.html

You'd want to stud the bottom end, better yet would be to start w/a 2-bolt block and use splayed caps- w/that much stroke, any real RPM is gonna have the main bulkheads and caps squirming around real good.

Last edited by cobalt327; 08-29-2011 at 07:54 AM.
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Old 08-29-2011, 12:15 PM
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Some of those Hecho en Mexico Goodwrench engines are made really crude. They were cheap replacement engines that came with a warranty. I had a crank ground once and someone switched the crank and tried to give me one of those Hecho en Mexico cranks. It was made really crude compared to the US made crank.
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