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Old 05-30-2012, 08:19 PM   #1
onekoolkat1950
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Default flathead 99 block
just took the heads of my flathead and found out it's a 99t.what is the big deal?tardel book says they are highly sought for race motors why?
Last edited by onekoolkat1950; 05-30-2012 at 10:30 PM.
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Old 05-30-2012, 08:53 PM   #2
bobscogin
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Default Re: flathead 99 block
Believed to have the thickest cylinder walls of all the flathead blocks. Is yours factory relieved?

Bob
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Old 05-31-2012, 07:52 PM   #3
onekoolkat1950
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Default Re: flathead 99 block
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Originally Posted by bobscogin View Post
Believed to have the thickest cylinder walls of all the flathead blocks. Is yours factory relieved?

Bob
i don't think so.
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Old 06-01-2012, 06:37 PM   #4
onekoolkat1950
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Default Re: flathead 99 block
more info?
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Old 06-01-2012, 06:46 PM   #5
Stevie G
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Default Re: flathead 99 block
What tells you it's a 99T?
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Old 06-01-2012, 06:59 PM   #6
bobscogin
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Default Re: flathead 99 block
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Originally Posted by onekoolkat1950 View Post
more info?
What do you need to know? 99A was introduced in the '39 Mercury and was a 239 when the Ford was a 221. The 99T was the truck version. I have a 29A '42 Mercury version in my '29 rpu. The pre-war Mercs seemed to be the desirable engines for racers because, as I stated earlier, it was believed they had the thickest cylinder walls.

Bob
Last edited by bobscogin; 06-01-2012 at 09:32 PM.
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Old 06-01-2012, 09:29 PM   #7
onekoolkat1950
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Default Re: flathead 99 block
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What tells you it's a 99T?
keystone shaped water passages.tardel book makes a big deal about these blocks.just wondering if i had something more valuble than other blocks and why.thanks for the info bob.
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