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  #1  
Old 05-12-2018, 07:58 PM
ddella22 ddella22 is offline
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Join Date: Nov 2012
Location: Summerville, SC
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Default 1963 421HO shortblock

1963 421 HO fresh rebuilt shortblock
11B code stick shift block
Casting 544988, this is the same high nickel 4 bolt main block as the super duty
Date code is C273

Pistons are 40 over

$6500, can pallet to ship
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  #2  
Old 05-22-2018, 03:37 PM
ddella22 ddella22 is offline
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Willing to negotiate

  #3  
Old 05-22-2018, 11:24 PM
Rocco Testa's Avatar
Rocco Testa Rocco Testa is offline
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Wrong pistons for a 421 motor. Were they changed out with 428 pistons?. If so won't work with 64- or older heads

  #4  
Old 05-23-2018, 09:07 AM
tom s tom s is offline
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Looks like a 428 crank also by the length of the snout?Tom

  #5  
Old 05-23-2018, 09:27 AM
AC445 AC445 is offline
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Default 421 ?

Hello,it appears to be .070 over bored. Do you have a copy of the sonic test ? Also what rods were used ? Thanks

  #6  
Old 05-25-2018, 04:35 PM
ddella22 ddella22 is offline
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Yes it is 428 crank and pistons, not positive on the rods to be honest

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