Posted: Sun Nov 18, 2012 1:20 pm Post subject: 3800 ser 2/3 hybrid motors?
The ishs are because some of the motors between 03 and 05 are series II/III hybrids
For GPs, everything up to 03 are 100% Series II. 04+ is 100% Series III. It's other cars like Impala/Montes that still offered the "Series II" during 04 and 05 that you get the hybrids. Based off Series III engines (since Series III was being made at the time), but with some Series II components added on to keep them as a drop in component to Series II uses.
I was reading on the GP forums a discussion about changing the top end to a S/C engine. There was a discussion about 04/05 3800 series 2/3 engines where parts might have been mixed between the 2 engines [ser 2/3] to use up surplus parts GM had in stock. Particularly pistons, & con rods. Does anyone know if this happened on 04/05 Impalas/Monte Carlos? GARY
Also note that Series III engines are the base for any 3800 produced for the 2004 year and up. This means the same block, heads, & connecting rods apply to any remaining Series II engines made after 2004 also.
Just found this on Wikepedia. This is why I asked. GARY
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