I am rebuilding a 1954 Chevy 235 engine and I did get some help from Jerry and modified my block to except 1956- 1962 main bearings. That worked out well and looks good. Thanks Jerry.
But I have run into another problem as the third bearing (thruster bearing) cap does not have a hole for the dowel on the new bearing. The number on the cap is GM 39 701347 R and has a tapped hole on the top of the bearing cap.
Does anyone know if this bearing cap is an original 1954 235 engine bearing cap? The new bearing and the old bearing are the same size and it appears the new bearing would work if the cap is drilled for the dowel or if the dowel is removed from the bearing, which may be easier.
What are your thoughts on this?
This engine history is unknown to me but it appears to be rebuilt at least a couple of times as the cylinders have been bored .04 over and are perfect with no taper at all while the crankshaft journeys are at .01 under size, are in specification while the bearings are showing a few small areas worn to the copper alloy and needed to be replaced.
