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1929 Studebaker flat Head 8 - Or a motor


Rich-1929 Studebaker

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  • 1 year later...

Perhaps you could be a bit more specific.  What is the casting number on the head you have now - and what's wrong with it?  Posting a photo helps.

 

Looking at the 1929-40 parts catalog, the same head gasket (167033) is used on 1929-33 Dictators and Commanders, as well as 1933 President Model 82.  All had 3-1/16" bore.  So, the heads should interchange, though they will have different compression ratios ranging from about 5 to 6.5.  Water fittings might be a little different.  Spark plug holes are metric on the later heads.

 

Candidate head numbers are:

167339 standard compression on 1929-32 Dictators

168314 high compression for 1929-32 Dictators

167032 standard compression for 1929-32 Commanders

168022 5.5 compression for 1929-32 Commanders

168411 6.5 compression for 1929-32 Commanders

177920 standard compression for 1933 Commanders

179877 high compression for 1933 Commanders

177918 standard compression on 1933 Model 82 Presidents 

179878 high compression on 1933 Model 82 Presidents

 

Usually, the Studebaker part number for flat heads is the same as the casting number that appears on the head.   

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Not trying to take over this thread but Gary Ash you mentioned that the spark plug holes are changed to Metric . Why did they change to Metric ?  Also on my 1931 Reo Royale all the oil seals and bearings where a Metric size and not a Standard size . Was there a change to Metric in the industry for some reason ?

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Through 1932, the spark plugs Studebaker used were Champion #2 with 7/8-18 threads.  From 1933 on, they used 18 mm threads on Champion 8A or 7A plugs.  The advent of 18 mm metric thread plugs about 1933 may have been due to the development of aluminum silicate ceramics for spark plugs, mostly in Europe, and a better understanding of heat ranges.  I'm not sure if it means much, but Albert Champion (AC) was French, probably biased toward metric.  Fortunately, new spark plugs with either 7/8-18 or 18 mm threads are still available..

 

Lots of discussion of plugs on this older thread:  

 

 

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  • 5 months later...
On 5/13/2018 at 10:18 AM, Gary_Ash said:

Perhaps you could be a bit more specific.  What is the casting number on the head you have now - and what's wrong with it?  Posting a photo helps.

 

Looking at the 1929-40 parts catalog, the same head gasket (167033) is used on 1929-33 Dictators and Commanders, as well as 1933 President Model 82.  All had 3-1/16" bore.  So, the heads should interchange, though they will have different compression ratios ranging from about 5 to 6.5.  Water fittings might be a little different.  Spark plug holes are metric on the later heads.

 

Candidate head numbers are:

167339 standard compression on 1929-32 Dictators

168314 high compression for 1929-32 Dictators

167032 standard compression for 1929-32 Commanders

168022 5.5 compression for 1929-32 Commanders

168411 6.5 compression for 1929-32 Commanders

177920 standard compression for 1933 Commanders

179877 high compression for 1933 Commanders

177918 standard compression on 1933 Model 82 Presidents 

179878 high compression on 1933 Model 82 Presidents

 

Usually, the Studebaker part number for flat heads is the same as the casting number that appears on the head.   

 My car # is / model FCW-1 ....  1929 Studebaker INLINE 8 CYL MOTOR  / .... As per .....  / Richard Quinn  /  1931 and 1932 Dictator Eights, part number 167339.    ......  Richard Quinn  ......  I might add that I am almost positive the 1929-30 Commander FD and all 1931-32 Commanders and Dictator and the '33 President model 82 cylinder head would fit thought it may have a different compression ratio. I do know the head gasket will fit so that is a good indication.

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  • 2 months later...
  • Ronnie changed the title to 1929 Studebaker flat Head 8 - Or a motor

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