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TOPIC: Odd Block

Odd Block 6 years 7 months ago #56920

  • 4stroke
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Seems everything I've read on these says hard valve seats in '66. Should have the "A" cast into the block. I have one (serial number shows it to be a '66)a late block design with the four mount lugs on the cam tower, no oil fill on the block as it's on the crankcase but has no "A" cast into the block. I haven't removed a valve to check for seat inserts. I'm wondering if the mount modification preceded the the seat inserts and this is a transition block?
Any thoughts?

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Dick Johnson

1989 16ft Sylvan

'57 Evinrude 18 (finally found a decent one)
'58 Johnson 5.5
'72 Johnson 6.0
'61 Homelite
'64 Johnson 18
'65 Homelite 55
'66 Homelite 55
'68 Bearcat 55 (3)
'70 Bearcat 55 (2)
'71 Bearcat 85 (Sold)

Re:Odd Block 6 years 7 months ago #56956

  • billr
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yes, new mounts preceded valve seat inserts.

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