FAQ: Series I to Series II / Series III Engine Swap

is push rod length the only problem because if thats the case i could just find out the specs on them an get new ones that'll fit. I would just go ahead and do something simple like a pulley swap but i dare to be difficult. It makes life more intresting.

I've seen side by side head comparisons, and seems to me there are significant differences, not just push rod length.

Actually length of the pushrod isn't as big of a problem as the angles.

S1 has that one backwards cylinder and S2 does not. Otherwise IIRC (I've seen pics side by side) they are reasonably similar...but not quite enough to ever make it work.

A swap would be realtively easy IMO. (But then..pulling a motor seems easy most days)

Ok well that scrapes that wet dream. Oh well. Is it possible to make a Gen 3 M90 fit a series I.

nope it will be nearly impossible to get the belts to line up. The casing of the m90 is 33% bigger so good luck bolting it to your lim as well.

yeah thanks anyway. Well what sort of low to no cost things can I do to her to get a little more out. When I had my Caprice and was more active on the Impala SS forum I found out about tons of things I coud do to my engine to get more out that would cost little or nothing.I only had a 305 in my Caprice but a 350 didn't stand a chance. I also got quite a few wows out of the LT1 guys who either rode in her and came against her late night on the E-way in one of our little just for the hell of it runs. Are there any of those litte secrets to you guys knowledge that I may use to get more out of my Supercharged 95 Riv. I want to be able to catch up with some of the guys from my old Caprice club (S.O.SS.T.) one night and blow the doors off of one of the closer to stock B-bodies. Just to let them know the money's still around.

superchargedmoney wrote:

are there any of those litte secrets to you guys knowledge that I may use to get more out of my Supercharged 95 Riv. I want to be able to catch up with some of the guys from my old Caprice club (S.O.SS.T.) one night and blow the doors off of one of the closer to stock B-bodies. Just to let them know the money's still around.

amen to that, or better ricers

sorry not sure where to put this question but i was wondering how hard it is to swap from a s1 to s2 . is it just a simple take one engine out put the new one in, or is there more? i dont need real specifics, just the general difficulty of the swap. thanks

im doing this swap right now, lets see you need a a S2 engine, S2 heads, S2 LIM, S2 M90, S2 TB, S2 wiring harness,you might need a 4t65e if your going to mod it. its alot of work and time but well worth it. lucky for me i have one of the best 3800 engine builders to help me

Overall it could be pretty easy if you pick up a drop out motor/trans. Get an engine wiring harness and map the wiring at the firewall to ensure the harness you have will mate the proper wires to the right places inside. Change the pcm and all should be good.

If you prep for it correctly, it can be a simple swap from the technical side. That leaves the labor side..and that side is only as hard as you let it be.

Hey all,
My Riviera is dead as a maul sledge hammer. I was headed home from work Saturday, and I stopped at the last stop sign before i got home. At that point I heard an awful squeal and before I could turn off the key, it locked up solid. After a nice tow bill to the nearest shop, the first thing my mechanic noticed was that my oil pressure sensor was unplugged. I am a victim of the classic used car scam. The only thing that i am mad about is that I had no idea that I was riding around for 6 months destroying my bearings thanks to the damn unplugged sensor. I probably have the lowest mileage 95 Riviera with a blown engine on the road 74,214- and its all because of a $35 oil pump. I have priced a long block for a series 1, and its around 2,500. I am no genius, but I am pretty sure that someone knows where a series II is for that kind of money. Can any of my friends here help me out? I'm wiling to pay that much or more if its a Series II upgrade.

morad parts co always has a few...

Bit of work you've got for yourself if you're going to swap in a Series II. Just ask Corey, he started doing that process ot his Riv.

Step it up dude... get a series III http://paceperformance.com/index.asp?PageAction=VIEWPROD&ProdID=8645

car-parts.com

http://www.mautofied.com/3800-supercharged-engine_Complete-Engines/listing/100114037/ 300 bucks for series II off a GTP with 86k

I HAVE A 95 RIV ENGINE IS BLOWN I GOT A 98 SUPERCHARGED RIV FOR A DONOR. I NEED TO KNOW IF IT IS POSSIBLE TO DO AN ENGINE SWAP AND IF SO WHAT MODS NEED TO BE DONE TO MAKE IT WORK. ETC SENSORS, POWER TRAIN CONTROLS, FUEL PUMP CONTROLS, ETC..

why don't you just fix the 98?

Albertj

The series II swap into Series 1 engine bay is not an easy task. The transmission is different too, easiest route is to get the entire drivetrain from the '98 including trans, and use the complete PCM and wiring harness from your donor car. You should buy a factory service manual so you have access to all the wiring diagrams, you'll need to do quite a lot of electrical to make it all work.

Yes it is possible, but it is not easy.

Wouldn't it be easier to use a '96 Series II since it uses basically the same trans as the '95's? I suppose the PCM would still have to be transferred though since the '95 isn't tunable.

THANKS.. I HAVE A BUDDY THAT HAS THE 98 ITS PRETTY BANGED UP. HE WRECKED IT ABOUT A YEAR AGO AND IS WILLING TO LET ME PULL ANYTHING I NEED. I GOT A FEELING THIS IS GOIN TO BE MORE THAN I WANT TO GET INTO.

CAPS LOCK AHHHHHH!

WHAT? I CANT HEAR YOU MAN! CAN YOU SPEAK ANY LOUDER??

Are the motor mounts and wiring harness all the same? Im back around again..... Just bought a 95 riviera and a 97 riviera engine.... waswondering waht all i will need to mod to drop it into this car.

I've not done one before but from what I've read the 95 is a creature all to itself.
The wiring harness you will need from the 97 as well as the 97 PCM and will have to do some additional wiring to the PCM.
Best bet is to have the wiring diagrams and manuals from both the 95 and 97 to help you.
The 95 doesn't have a MAP sensor yet the 97 requires one. I'm sure there are other things that are different as well.
I'm not 100% sure about the mounts but I think you'll need the ones from the 97 (not sure)
Someone else will need to chime in on the rest.