Sdp cat

Pretty sure the block is the same from mbn on up, it’s the emissions garbage that ruined the SDP

 

@Cat sdp

 

If its rebuilt properly it can be a very good piece….. But you need someone that knows what to do …

 

If you castrated it, it will be fine like any yellow motor. I know of 2 that it did wonders once it was done.

 

If it consumes alot of oil. It probably has alot of blowby.

I once drove a 99 cat motor that started consuming at 175k. Cat is famous for undersized pistons. The top compression ring on all 6 pistons was broke.

That particular motor had the blowby vent on the side of the motor where oil was dripping out. Cats solution was to remove the hose and block it off with an oil fill cap. Swap the middle valve cover for a vented valve cover and hook the hose on to that. It fixed the oil loss problem. But still consumed oil.

Excessive blowby also dilutes the oil to the point you lose oil pressure.

 

I would rebuild it and make it not an SDP.