Join Date: Jun 2007
Location: Exeter, RI
Thanked 24 Times in 22 Posts
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I read up a lot on the "53" blocks... (thought my truck had one but it turned out to be a "55".) I could not get any hard numbers on the 53 but I think the percentage of failures is still low. Even if the failure rate was (hypothetically) twice that of "other" series blocks... the numbers would still be small... that's from a manufacturer's perspective... if we own one that fails, it's 100%!
But a crack is not necessarily the end of the block since they are repairable.
Within the 53 blocks, there are some with a casting mark which identifies a more crack prone casting. I'd certainly scope it out before dumping an otherwise good truck.
I agree that many of these trucks with the 53 blocks live out their lives without problems. Do a search...
2001.5 Dodge Quadcab, 2500, 5.9, AD150, big line, 47RE auto, 4X4, 4.10, 265/75R16, 8800 GVW, TCW3 4"TBE, 36" FTE swirl resonator, straight through "muffler", IAT (mpg) fooler, XZT+. NRA LIFE MEMBER