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1938 vs 1939-1940 v16 heads

Started by Flathead16, December 17, 2013, 06:43:25 PM

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Flathead16

December 17, 2013, 06:43:25 PM
The 1939-1940 heads have freeze plug on the end of the heads. The 1938 doesn't. Are they interchangeable?
    Steve Loechner, Flatheadv16

Brad Ipsen CLC #737

#1
December 17, 2013, 10:30:51 PM
As far as I know they are interchangeable.  Spark plugs are different.  39 and 40 have the 10mm plugs.  38's have the 14mm plugs.
Brad Ipsen
1940 Cadillac 60S
1938 Cadillac 9039
1940 Cadillac 6267
1940 LaSalle 5227
1949 Cadillac 6237X
1940 Cadillac 60S Limo

Steve Passmore

#2
December 18, 2013, 02:59:31 AM
Brad is totally correct,  the plugs are different and the casting vary but the bolt pattern stayed the same throughout making all interchangeable.
Steve

Present
1937 60 convertible coupe
1941 62 convertible coupe
1941 62 coupe

Previous
1936 70 Sport coupe
1937 85 series V12 sedan
1938 60 coupe
1938 50 coupe
1939 60S
1940 62 coupe
1941 62 convertible coupe x2
1941 61 coupe
1941 61 sedan x2
1941 62 sedan x2
1947 62 sedan
1959 62 coupe

Flathead16

#3
December 18, 2013, 10:56:24 PM
Thank you for the help. It's hard to believe all of  the changes that where made on this engine in three years. The pistons,sparkplugs,generator,pulleys,belts and distributor fuel support bracket. Oh yes the oil filter. Did the lube system have any changes?
Thanks Brad,Steve,Boyd and Pete I'm learning from the masters, Steve Loechner
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