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SE MT | I was thinking the 04 was a bridge engine but couldn't remember for sure.
The bridge engines weren't bad in terms of reliability, they just had poor milage and poor power. Think of them as a de-nutted 6NZ motor.
I think in that year they only offered a 425 or 450 hp rating, with option to re-rate to 475. Never saw one that dynod very well.
If it was me, I'd think about finding a 6NZ ECM and injectors and swapping them out. Pistons/turbo might be a little different, but wouldn't worry about it too much.
Or, you could just take it in, have it re-rated to highest hp rating, and give her a shot to see how it does?
The bridge engine was Cat's half hearted try to meet emissions by offering a de-tuned engine to satisfy the EPA regs in 04 until the Acert engine could be released.
For the record, there was NO EGR in the bridge engine, or The acert BXS or MXS serial numbers. CAT was one of the last ones to put EGR on their engines because they knew how disastrous it was for them. | |
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04 C15 Cat?
