[SOLD] X block

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CMcAllister

CMcAllister

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X block. Nice shape. 4.070 bore, 4 bolt, lifter bores bushed, o-ringed.

SOLD pending funds...much prefer to be picked up or FTF in south-central PA/17267 area.

Additional pics available.

Still available...
NOS P4529715 crankshaft, 3.79 stroke, 318/340 mains, 1053 forging, 8 bolt flange, mint in original packaging with vapor paper. Now $600 plus shipping.
 

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More block description please.
Possible block part number?
 
the standard x block height is 9.600. back in the 90's we did a x block with a 3.79" stroke with b1 ba heads that ran 42 passes in 1 night at epping, all 10 second passes- in a Dart- a world record
 
R blocks were available in many different flavors. My research, memory, old DC catalogs, etc, seems to indicate these blocks were all 9.600 deck height, 3.91 rough bore because they were run on a 318 line, and available in 2 bolt or with high strength 4 bolt caps on 2, 3, and 4.
 
71Scamper said:
The X blocks have thicker cylinder walls than the LA variety. There should be no problem at 4.070
Click to expand...

I know that, but from what I heard anything over 4.070 should be sonic checked on these blocks..3.91 is rough bore when new so it probably has been rebuilt twice already......just seeing if he has sonic check paperwork before spending 1900.00 dollars
 
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