http://en.wikipedia.org/wiki/GM_60-D...ne#3.4L.2F3400
The LA1 3400 ("E-code") was a bored-out version of the 3100. 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 stock supercharger is in the Oldsmobile Alero. Although the supercharger is a small one, it makes up for the hp. A 92 mm (3.6 in) bore with the same 84 mm (3.3 in) stroke brought the displacement to 3.4 L (3,350 cc/207 cu in). 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 lb·ft (285 N·m). The 3.4 L engine is known to have intake manifold gasket problems causing engine damage if the owner of the car neglects to check or change the gaskets (if necessary). Many aftermarket companies have released gaskets that correct this problem for good. 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
* 2001-2005 Pontiac Aztek/Buick Rendezvous
* 2000-2005 Chevrolet Impala
* 2000-2005 Chevrolet Monte Carlo
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