Compression Ignition Addict
Join Date: Sep 2011
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Yes, 25 extra hp. I like it was like 225 and then 250 on the 97s, or maybe 210 and then 225 sometime like that.
Quote from member Alberta 7.3 from this forum. "The 94.5-early 95 used a High pressure oil pump that is different from later models. Using a later model pump will result in the High pressure pump supply reservoir draining out when parked. There are modified pumps and other modifications that will work around this issue.
The mid-95 and 96 engines were pretty much run-of-the-mill with no noticeable changes.
96 and 97 California models used a different PCM and wiring, utilized split-shot (pilot injection) injectors, and had a pulsation damper on the fuel pump.
1997 engines had a different oil pan, oil pickup, and front cover in an effort to reduce the "dry start" of a lack of lubrication oil being pumped. The 1997 block was also thickened and reinforced internally in an effort to reduce combustion noise."