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I do not buy most of this artical,1 most cracked heads ar due to no or at least poor cooling system maintanance. The oil filter adaptor part,the position of the adaptor is a red hearing,with the use of modern oil filters ther is no drain back as they have a chek valve. I personly drill holes in the adaptor so oil entering the spin on gets axcess all 360 degrees,with oil comeing on 1 side of the adaptor ther is un equal pressure ,makeing gasket failur more likley. the other over heat culperate was if heads wher removed and not surfaced ,shim gaskets wher a problem. useing the compesition gaskets ,and surfaceing the heads never saw cracked heads. chevys wher the same, but more tolerent due to more head bolts.most rebuilders in western canada both y blocks and sb cheveys used compesition head gasgets. The rear main seal was a knowen problem,especialey when material change came to the rope seal.split neopren seals work well when car is taken with retainer instalation. thow in the south ther wher more isues to deal with ,as water with no anty freze created rust and erosion,especialey head gaskets of shim typ.most marine engines went to comp. head gaskets early and used anty freeze. in heat exchanger use. Raw watter cooling created a throw away isue with rusrt and erosion. just my take The heavey use of y blockes in industrial aplications with good serviceing , wher the dominate power plants,with chrysler a close second. cheveys came into ther time with the 350 ,and ford was slow to come to market with there repacement for the ys |
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Doc did complete Y-Blk buildup articles for Street Rodder in 1999 & for Classic Trucks in 2001-2. However, they're only available used, as original reprints are not.
Paul
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Found this while searching Y Block stuff on the Web, nothing I have not seen before but may help someone http://www.enginebuildermag.com/Article/2624/working_it_all_out_discovering_yblock_ford_tricks.aspx Nice to see an engine rebuilder even knows the Y exists, was written in 2002
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