maybe  others with camera skills can show what a good media blast looks like on a block and inside water jackets -- a GOOD media blast will look as good or better than foundry new--- I would never build a good motor only scrape and pressure wash ---- you will never get water jackets clean like a media clean any other way --- only total rust removal will give you  best  sonic read----rust will not measure the same as the base metal--- a good media clean WILL clean ALL water jacket passages lke new!!!        john

   get a good media blast to clean the water jacket well - even two times if necessary- only way to get a really good sonic test- watch for salt water use or chemicals in water--could be real odd chemical reaction-- media clean should not effect line hone--- good luck--possible good block ship from u.s.--military service member move-or?? good 352 us block--john

      long storage pull plugs- oil cyls- spin to lube install plugs- tape ex ports or header- seal engine good--------- when start prelube by pull plugs---spin with starter to see oil psi or under valve cover see oil flow --- i would never bother pulling dist---- seal good-prelube with starter --ready to go- no dist. worry---you have oil pump and starter to prelube        john 
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           please refer reference #25 to reference #14 comments thanks wconley-john-oldiron                                                                                                                                                                                                                                                                                                               

          yes i would like to purchase cam - could you call to arrange payment as old school- send a check when clearing ship at that time ship - i do not use i phone and little computer stuff- thank you       john -old iron @ 507-895-6408 -can leave message for me to call back -will reply or call- again-thanx

    x2 -my427- but add has seen some use how hard always ?- mag crank store the rods  -- i know they are used over many builds-- i have been running fe iron for 60 years now --orgional rods    may be ok - at min. check the web about 1-1/2 inch below pin some rods you may damn near see through-- over all the years a friend had a new factory side oiler short block --rod broke at about       first time at around 3500 rpm  almost no material in web- i had 390 do the same thing 2500/3000 on interstate same thing rod just no good also they have a life cycle-- store for a numbers guy but    do not possibly destroy a lot of good parts/work on a bad rod-- if you dont have a egg on the footfeed - use deeper front sump pan or accumlator or extra qt. at min and windage screen not flat tray   type-- good times w/fe-- john-oldiron

       most repairs mentioned should work well- best for time/expense-i had a small marina/mercruiser repair service in wis. -repaired many blocks/ex.manifolds-  make sure you find the end of the      crack or any repair may not work well!!    drill- v-notch crack clean well - used devcon product-never had a fail-marine motors get the he-- beat out as may run at full rpm for long periods                  also same process  except heat area with a small torch-used small a/c welder with good cast iron rod-short 1/4 inch weld --peen a lot with chipping hammer (a lot) to repair -- never failed      the repairs were made from freezing people missed or did not clean drain plugs while getting mud in system in shallow water         john

          while it isnt nice to point fingers---if person assembled this motor can remain unknown hard /priced lesson--- shop i would note for others to avoid this costly mistake hard to see the expence of good parts destroyed by assy. errors like occurred---  oldiron--john