Topic: Can't figure out what engine I have


hemi    -- 01-23-2015 @ 11:22 AM
  I've just got a 41 Ford Super Deluxe coupe that was built for and ran in several of the Great Races. I was told that it had a 100HP block but there are no casting numbers on the bell housing to identify it. The water inlets are on the center of the heads. The heads have a casting mark "A". The distributer is a crab style with 2 bundles of plug wire , one coming out each side.
Anybody have an idea of what I am working with

This message was edited by hemi on 1-23-15 @ 11:34 AM


ford38v8    -- 01-23-2015 @ 3:02 PM
  As your block has no ID on the bell that would have indicated a 59 series block, then it may be a '41 Merc block, which I'm told could have been ordered in the 41 Ford. The two bundle plug wires in a V pattern cap would be a simple conversion from the correct crab style of your year Ford.

Alan


hemi    -- 01-23-2015 @ 3:35 PM
  so the 59 engine did not have a number on the bell housing? How about the heads being marked with only an "A" - any idea what they are for?


ford38v8    -- 01-23-2015 @ 4:54 PM
  The 59 series engines had a very large number 59 on the bell. There were always some casting numbers that mean nothing today. The A heads, you will find also have a number 81A 6049 or 6050 cast into the top edge. It does sound like a correct engine, as I said, special order Merc 100 hp, available for the Ford. For more info, and certainly better than mine, check out the link below. If it differs from mine, go with Mac's!
http://www.vanpeltsales.com/FH_web/flathead_specifications.htm


Alan


TomO    -- 01-24-2015 @ 8:42 AM
  There is no external difference between the 85, 95 and 100 HP engine in the pre-WWII era. The easiest way to determine the HP is to remove the heads and measure the bore. The 95 and 100 HP engine had a 3 3/16" bore and the 85 HP engine had a 3 1/16" bore.

The 39-40 95 HP engines had a 99T stamped on the machined surface where the intake manifold mounts. The 41 Mercury engine did not have this as the casting was changed and there is a raised area for the intake manifold. These engines were originally painted blue to identify them as different from the green painted 85 HP engines.

Tom


hemi    -- 01-25-2015 @ 11:43 AM
  I found the part number on the heads - it is 81A-6049A. The top of the engine appears to not have a raised area that the intake bolts to. It looks to be flat.

This message was edited by hemi on 1-25-15 @ 11:44 AM


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