91 regal 3800 v6(wana swap engine
5th Gear Member
Joined: Mar 2004
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i addressed this in PM's but figured i would share.
the seriesI is OBDI in 91. the seriesII is OBDII so the entire wireing harness and ecu would need swapped. most likely custom axles. best bet is find a supercharged series I car and take the engine,trans, and ECU MAF from it and swap it in. everything except a few pigtails will work. those old 440t4 transmissions are not known for strength i smoked 3 on my old reatta and lesabre T-type. the supercharged cars had alittle stronger trans internals but still not great.
older 3800 series I's had the M62 blower and i believe 92+ had the m90 205hp and 225hp respectively if my memory serves me right but torque is near 300ftlbs like the supercoupe engine. if the parts can be found cheap which they should be it should be an OK swap
the series II swap would be more work than it's worth
the seriesI is OBDI in 91. the seriesII is OBDII so the entire wireing harness and ecu would need swapped. most likely custom axles. best bet is find a supercharged series I car and take the engine,trans, and ECU MAF from it and swap it in. everything except a few pigtails will work. those old 440t4 transmissions are not known for strength i smoked 3 on my old reatta and lesabre T-type. the supercharged cars had alittle stronger trans internals but still not great.
older 3800 series I's had the M62 blower and i believe 92+ had the m90 205hp and 225hp respectively if my memory serves me right but torque is near 300ftlbs like the supercoupe engine. if the parts can be found cheap which they should be it should be an OK swap
the series II swap would be more work than it's worth
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