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Old 08-05-2020, 01:26 AM   #17
frnkeore
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Join Date: Jul 2019
Location: Southern Oregon
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Default Re: 21 stud flathead

Quote:
Originally Posted by slug View Post
I think I have a 33 as the pet cocks are at an angle so not a 32 and there is no vent on the pan. The only thing are the heads have dates of 3-25-48 on the left one with also a casting or part number of 88-6050 R. The right one is 6-11-47 and 68-6049B. I was told when I bought it that it was a 33 but want to make sure when I list it I am being honest. The car is 47000 mile 32. It must be a factory type rebuilt in the late 40's or early 50's. Comments? Thanks for all the replies. John
I think, if the 88 head has a 3 bolt flange, in the front of it and you look closer, the 88 will be a 68, like the other side.

My '37 block (block off plates) was a rebuild and had (I took them off) late casting date, 68 heads. The 68 heads are made for domed pistons. I had .040 over domes in mine so, if you can easily take the head off, make sure it has domed pistons or, the compression ratio, will be very low.
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'35 Ford Model 51
'48 Ford F3
'54 Ford Tudor Mainline
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