And we have a winner!Are you sure it’s a 4-53?, looks like a 4-71 to me, but my 70yr old eyes could be wrong, worked on lots of Detroit’s 4-53, it’s the front of engine that,s different
And the air box covers.
Bob
And we have a winner!Are you sure it’s a 4-53?, looks like a 4-71 to me, but my 70yr old eyes could be wrong, worked on lots of Detroit’s 4-53, it’s the front of engine that,s different
Oh never thought of that! I was told it was a 453, how can I tell for sureAnd we have a winner!
And the air box covers.
Bob
Air box covers are 71 for sure.Oh never thought of that! I was told it was a 453, how can I tell for sure
It's been years since I've been inside a Detroit, but IIRC correctly, the 53 series had dry liner bores in the block, but the 71 series had wet liners bores at the bottom of the bore, requires an o-ring seal to keep coolant in the water jacket of the block, o-ring failure will allow coolant into the oil pan, fairly common failure of an aged 71 series.I have it out, Tomorrow will have a look inside. Drained out engine oil and there was 4 gallon of antifreeze in there, not good