Does anyone know what years are interchangable on the 3.4?

[1320-camaro-383]

I have a 99 se with the 3.4.it has a bottom end rap and needs to be replaced.I also have a 98 venture with the 3.4 is it the same?Some places I look sais that 96-03 are the same and some say 99-03 are the same.Does anyone have access to hollander interchange?Thanks

[xeroinfinity]

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!

[1320-camaro-383]

You are the man!!!!I asked a junk yard today and they confirmed what you said.It will fit as a long block but they say I will have to swap oil pan,intake & exhaust manifolds,timing chain cover etc.Thank you so much for taking the time to research that for me.Oh yeh one thing.I have a 96 monte carlo z34 with the 3.4. and I know the 3.4 was used in the 93 and up f bodys.Is that a diff long block?Dont wast your time looking it up,just wondering if you knew off the top of your head.Thanks again.