Author Topic: Boss 351 block  (Read 217 times)

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Offline dash

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Boss 351 block
« on: September 04, 2019, 04:38:24 pm »
I have a block that I am told is a Boss 351.  it is a 4 bolt main with DOAE-L  and OK2G.  is there any other identifying marks?  I am not going to build this motor but if someone needs it for their car it it would be cool to see it go to the right home.  Thanks for your help.


Offline CaBossFan

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Re: Boss 351 block
« Reply #1 on: September 04, 2019, 05:41:55 pm »
Your block has a date code that is correct for a BOSS 351:

http://www.mustangtek.com/block/D0AE-L_Boss351.html

I would check for a partial VIN number stamped on the block.

Offline dash

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Re: Boss 351 block
« Reply #2 on: September 04, 2019, 08:36:44 pm »
thanks for the response.  Where would i look for the partial vin?  Thanks

Offline CaBossFan

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Re: Boss 351 block
« Reply #3 on: September 04, 2019, 09:33:19 pm »
On a BOSS 302 block, the partial VIN number is stamped on the pad located on the rear portion of the block on the driver's side.  Good luck! - Mark

Offline svo2scj

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Re: Boss 351 block
« Reply #4 on: September 06, 2019, 07:29:25 am »
Dash

I think you will find that the G is actually a 6   (0K26) As stated look on the back driverside flat for a series of numbers 1F135???.     No numbers - it would have been machined for 4 bolt caps very common mod.

Mark
Mark Haas
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Re: Boss 351 block
« Reply #5 on: September 06, 2019, 08:42:11 am »
Dash
........................ it would have been machined for 4 bolt caps very common mod.

Mark

     This can usually be identified, as the replacement caps rarely fit correctly and the earlier machining and resultant misfitment (word?) will be visible upon inspection.      ;)

     Scott.

Offline svo2scj

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Re: Boss 351 block
« Reply #6 on: September 06, 2019, 11:09:36 am »
Shouldn't have used the term machined
Rather "drilled for extra bolts"
(Yes it is a machining process)
Mark
Mark Haas
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Re: Boss 351 block
« Reply #7 on: September 06, 2019, 05:28:18 pm »
   
Shouldn't have used the term machined
Rather "drilled for extra bolts"
(Yes it is a machining process)
Mark

      If I'm following your post correctly, what I was referring to: would be the tool marking remnants from the O.E.M's original line-bore process within the caps, it not being completely removed in the transformation process of moving the caps from one block to another and the ensuing line-boring and or line-honing processes, due to the generally inevitable misalignment in the already established radiuses relative to the registers in the caps vs. the new or second block, this being most apparent close to the parting line (three o'clock and or nine o'clock positions).

      As far as the drilling, counterboreing, and taping, for the additional bolts this can be accomplished to appear as O.E.M. if desired.          :)