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239 replacement motor


hey all,well doing some more work on the 49 Pontiac.I decided to pull the head off the engine and have a look at the top end of the valves and pistons.Not too bad other than carboned up.A bit of cleanup and all looks good to go.I did a bit of clean up on the block as well and found the engine number.According to my gm history report the engine number should be w102167 but my engine is stamped w235648.I know these engines were quite often replaced under warrenty any ideas what the year of my block would be.Kind of surprising as the odometer only shows just over 51000 miles.Hopefully i'll have it back in the car and running soon.Only one glitch taking the head off,mine had what I assume is a block heater running down through one of the head bolt holes.And of course it broke pulling it out,so now have to drill it out and replace with a head boltNot a huge deal but just some more work before I can put the head back on.



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A Poncho Legend!

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http://www.secondchancegarage.com/public/614.cfm     some cool info 



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A Poncho Legend!

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Posts: 35747
Date:

 

1949

 
ENGINE NUMBER is located on the right side of the block to the rear of the distributor.  Engine numbers start at 1001.
   
 Passenger Cars 
 GAA   GAMPassenger Car w/216ci Engine
 Trucks 
 GAC   GAPSeries 1500 & 2000, 216ci Passenger Car Engine w/HD Clutch
 GBA  GBMSeries 3100, 216ci Truck Engine
 BGCA  BGCMSeries 3100, 216ci Truck Engine w/HD Clutch
 AGCA  AGCMSeries 3600 & 3800, 216ci Truck Engine
 GCF  GCSSeries 3700 & 3900, 216ci Truck Engine
 GCA  GCMSeries 4000, 216ci Truck Engine
 GCD  GCQSeries 4000, 216ci Truck Engine w/provision for Hydrovac Brake Unit
 GDA  GDM  GEA or GEM ????
   
 Prefixes ending in - AA  AC  BA  CA  CF  CD  EA  EA were manufactured in Flint, Michigan
 Prefixes ending in - AM  AP  BM  CM  CS  CQ  DM  EM were manufactured in Tonawanda, New York


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Guru

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On our 239 there is another place to look at the engine #, Under the front valve cover gasket, upper right corner if you feel to confirm your's

 

Fitz.239 pc assemblage 010.jpg



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www.FitzbackGarage.com Look for Easy Steering in your vintage Poncho, Look for the EasyDrive Power Steering System in the web site

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