Northstar V8 in my '98 SSEi? - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Northstar V8 in my '98 SSEi?

Reply

 
 
 
Old 11-09-2003, 11:28 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Nov 2003
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
alexf20c is on a distinguished road
Default Northstar V8 in my '98 SSEi?

Well, on my last trip to the pick-a-part, I found a salvaged (rear-ended) '02 DTS with a good engine... And I got to thinking, would that bastard fit in my SSEi, tranny and all?

I want objective, unbiased opinions here. Simple, yes or no. None of that "It'd take a lot of work" BS. My mom'* daily-driver is a twin-turbo minivan that we built ourself. What I'd like to know is if the complete Caddy drivetrain would mate with the Bonneville (electronics, sensors, etc.)
alexf20c is offline  
Reply With Quote
Old 11-09-2003, 11:36 PM
  #2  
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 11
Thanks: 0
Thanked 1 Time in 1 Post
willwren is on a distinguished road
Default

Electronics and sensors, no. Motor mounts would need to be custom, as the Northstar never saw an H body. You'd need the Engine, 4T80E, PCM, and entire engine wiring harness. The factory service manuals for your car and the donor car would really be a must to get all the instrumentation working again.
willwren is offline  
Reply With Quote
Old 11-09-2003, 11:39 PM
  #3  
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 11
Thanks: 0
Thanked 1 Time in 1 Post
willwren is on a distinguished road
Default

Left something important out......PM Speedguy here, he'* the owner of www.domesticperformance.com and has done alot of investigative work on this very subject. He'* probably your best resource.
willwren is offline  
Reply With Quote
Old 11-10-2003, 12:39 AM
  #4  
Senior Member
Expert Gearhead
 
Join Date: Dec 2002
Location: Mississauga, Ontario
Posts: 20,893
Thanks: 0
Thanked 1 Time in 1 Post
Jim W is on a distinguished road
Default

3 words...Possible but expensive
Jim W is offline  
Reply With Quote
Old 11-10-2003, 01:28 AM
  #5  
Senior Member
Certified Car Nut
 
Join Date: Jul 2003
Location: Robbinsdale, MN
Posts: 15,408
Thanks: 0
Thanked 0 Times in 0 Posts
MOS95B is on a distinguished road
Default

One more word, FUN! That thing would scream after the swap!
MOS95B is offline  
Reply With Quote
Old 11-10-2003, 01:35 AM
  #6  
Senior Member
Expert Gearhead
 
Join Date: Dec 2002
Location: Mississauga, Ontario
Posts: 20,893
Thanks: 0
Thanked 1 Time in 1 Post
Jim W is on a distinguished road
Default

Esp out of at DTS...4.6L V8 MONSTER...
Jim W is offline  
Reply With Quote
Old 11-10-2003, 01:40 AM
  #7  
Senior Member
Certified GM nut
 
Join Date: Jul 2003
Location: Ab,ca
Posts: 1,963
Thanks: 0
Thanked 0 Times in 0 Posts
1992 trofeo is on a distinguished road
Default

Id think for the mounts.. how it has 2 pivit points on top of the rad... so you might want the rad/ out of the dts too.. figure out how wide it is... you might want a DTS front clip.
1992 trofeo is offline  
Reply With Quote
Old 11-10-2003, 01:42 AM
  #8  
Senior Member
Certified Car Nut
 
Join Date: Jun 2003
Posts: 15,928
Thanks: 0
Thanked 0 Times in 0 Posts
BonneMeMN is on a distinguished road
Default

You have lots of power you can open up from your engine, a simple pulley, exhaust and intake is another 50HP/Ft lbs more!

Yeah you can do it, you could fit a 350 in there, just no tranny for it!
BonneMeMN is offline  
Reply With Quote
Old 11-10-2003, 03:24 PM
  #9  
Junior Member
Thread Starter
 
Join Date: Nov 2003
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
alexf20c is on a distinguished road
Default

Thanks for all the info guys. I'll PM Speedguy for specifics.

trofeo, I'll head out to the junkyard in the next few days to check it out. The front end looked perfect on the salvaged DTS so we'll see. If I did need to swap complete front ends, this engine swap may be a no-go; that'* a lot more work than I'd like.

BonneMeMN, hell, I'd pull the fully built 350 out of my Camaro if there was a FWD tranny for it! It'd be one more excuse to drop a big block in my old SS. :p
alexf20c is offline  
Reply With Quote
Old 10-05-2004, 02:16 PM
  #10  
Senior Member
True Car Nut
 
Join Date: Feb 2002
Posts: 3,993
Thanks: 0
Thanked 0 Times in 0 Posts
JimmyFloyd is on a distinguished road
Default

were there some Olds from the early 70'* that had FWD 350'* in them?

Info can be found here: http://archive.classicoldsmobile.com/html/62.html

Look at permutations section

Transmissions: TH-325, TH-425

TH-425
Well, it'* my understanding that the TH-425 was basically a TH-400 severed aft of the torque converter. A chain drive was mounted to the truncated transmission and the remainder of the transmission and differential mounted below for FWD applications. There'* a good picture of one at http://www.hughes.net/~gcifu/eldosaurpark/pwrtrn.html. If GM followed form on the TH-325, it should be a TH-350 simularly altered for front-wheel-drive use. TH-425, used from '66-'78.

TH-325

Durability
Seeing that the TH-325 was used in conjunction with Olds 350'* and Cadillac 368'* (the RWD models used the TH-400), it probably has a capacity similar to a TH-350. It'* really a downsized version of the TH-425, used from '66-'78; does anyone know how much physically larger (if at all) this earlier version is?

Permutations
The TH-325-4L, a 4 speed version of the TH-325.
JimmyFloyd is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: Northstar V8 in my '98 SSEi?


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.