I dont have the hollander bible .....
Ok I found out some info on the LA1.
LA1
The LA1 3400 was a bored-out version of the LG8. It retained the OHV layout of the previous engine, and was first utilized on the 1996 U platform minivans and appeared in a car for the first time in the 1999 Pontiac Grand Am and Oldsmobile Alero. A 92 mm bore brought the displacement to 3.4 L (3350 cc). Like the LG8, the LA1 featured numerous common parts with the similar GM High Value engine family. Power was up to 170 hp-185 hp (127 kW to 138 kW) and torque was 210 ft·lbf.
It is used in the following:
* 1996 Chevrolet Lumina APV/Pontiac Trans Sport/Oldsmobile Silhouette
* 1997-2004 Chevrolet Venture/Pontiac Montana/Pontiac Trans Sport/Oldsmobile Silhouette
* 1999-2004 Oldsmobile Alero GL/GLS
* 1999-2005 Pontiac Grand Am SE/GT
* 2002-2005 Pontiac Aztek/Buick Rendezvous
* 2000-2005 Chevrolet Impala
* 2000-2005 Chevrolet Monte Carlo
So I was correct on the dates 96-04.
Good luck with the swap!