340 T/A block

Old 07-28-2018, 08:37 AM
  #1  
scott11224
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Default 340 T/A block

Does anyone know if it is possible to repair a block that has been blown? I have the original block for my AAR that threw a rod years ago, the rod did not go through the side of the block but it did beat the cam causing the cam to come out in pieces and crack the bridging along the bottom of the lifter valley. Are there shops now that specialize in repairing rare blocks?
Thanks
Scott
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Old 11-07-2018, 03:35 AM
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mikesproformance
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YES,They can repair most anything.Ifyou have it welded,be sure to have an old cam and crank in the block"installed.IF the Mig weld it with 80 or 90 sd2 wire,very high nickle content! then have it stress relieved twice,in a shop that specializes in the expensive but proper way of taking it up to the correct temp in steps then back down in steps.IF you can not turn the crank or cam it is warped. NOT for sure a big problem now.If they are a good repair shop they will weld a little here then some place different,constantly moving keepin the block warm.Home tis helps.An X block is considered an acceptable replacement. OF course,me I cheated ,Ibought an after market taller block,ground all the out side numbers off it,machined the ones out of my T/A block,welded them on.Good luck!,Mike
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