97 LT1 into 94Z ???????
#1
07-08-2010, 03:26 PM
97 LT1 into 94Z ???????
Ok so I blew the motor in my 94Z. I can get my hands on a LT1 out of a 97 SS. What would I have to change out if anything to put it into my 94Z??? Since the '97 is OBDII and the '94 is OBDI. Any help is greatly appreciated. Also I read that the '97 SS motor has 20 more stock HP than the 94 did is that true????? Thank you!!!!
#2
07-09-2010, 03:59 PM
Join Date: Mar 2009
Location: Tokeland, Washington
Posts: 21,751
should be a straight switch. you may have to use a couple of your sensors so check them out to see if the parts are the same. yes the 97 has improvements that bring the hp up about 30 or 35 but alot of it is from better exhaust.
#3
07-13-2010, 03:09 PM
Join Date: May 2009
Location: Farmington Hills, MI
Posts: 1,671
won't the OBD switch cause problems??? And since when to '97 LT1s make 30-35 hp more than '93-'96 LT1s?
#4
07-13-2010, 03:21 PM
Join Date: Mar 2009
Location: Tokeland, Washington
Posts: 21,751
so you can use the vented opti but will need to change the opti harness.
and yes the 96 97 has some improvements in the fuel/air delvery and exhaust that give a tad better hp.
aha changed it. lol.
and yes the 96 97 has some improvements in the fuel/air delvery and exhaust that give a tad better hp.
aha changed it. lol.
Last edited by craby; 07-13-2010 at 08:34 PM.
#5
07-13-2010, 04:59 PM
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 18,306
ah your^^^ right the 97 has a crank sensor on the front cover. sooo the op will need to change the front cover and take the reluctor wheel off the crank, will also need to change or get new crank timing sprocket. they are a little shorter to allow for the reluctor wheel. you may want to concider switching to a 95 96 front cover so you can use the vented opti.
and yes the 96 97 has some improvements in the fuel/air delvery and exhaust that give a tad better hp.
and yes the 96 97 has some improvements in the fuel/air delvery and exhaust that give a tad better hp.
Last edited by Camaro 69; 07-13-2010 at 05:01 PM.
#7
07-13-2010, 06:59 PM
Just continue using the 94 PCM and wiring harness and ignore the crank sensor, its only purpose is for misfire detection. The 94 PCM is not looking for it. No need to change front cover either. There may be some minor issues with connectors, but you should be able to sort them out.
#8
07-13-2010, 09:43 PM
Join Date: Oct 2007
Location: The 'Burbs of Chicago
Posts: 18,306
If there are any issues with the opti connectors, just take a close look at both plug ends. Each wire has a corresponding number marked on the Metripack plugs. If you need to swap plugs (in case of a mis-match), all you need to do is match up 1-1, 2-2, 3-3, 4-4. Or if one of your plugs has letters instead of numbers, as was the case with my 92 Vette when I did an upgrade, then it's 1-A, 2-B, 3-C, 4-D.
