triumph stag engine swap - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans Advertise
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Closed Thread
 
LinkBack Thread Tools
  #1 (permalink)  
Old 06-20-2004, 07:44 AM
Registered User
 
Join Date: Jun 2004
Location: NC
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
triumph stag engine swap

I have recently bought a 1973 Stag and want to swap engines. Anyone with experience with this car please share your thoughts. Thanks, Dale

    Advertisement
Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 06-21-2004, 10:11 AM
Member
 

Last journal entry: More propane stuff
Join Date: Jun 2003
Location: -
Posts: 279
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
What engine do you plan on swapping with. I believe that the old buick v8 that triumph used in the tr8 would work. I know that that engine was modified by land rover and used in the range rovers. I remember hearing that the 3.8(tr8) would bolt up, but I am not sure. Your local triumph club should be able to help.

If it was me I would use a ford v8 ( thier narrower than a chevy and easier to find than the triumph 3.8).

Good luck

John
Quick reply to this message
  #3 (permalink)  
Old 06-21-2004, 11:38 AM
Member
 
Join Date: Jun 2003
Posts: 3,600
Wiki Edits: 0

Thanks: 514
Thanked 532 Times in 389 Posts
A friend of mine had one of those things and itīs main problem was warped heads, on the original motor.In the end he did a quick sell as the bills were piling up so fast. Then he got a phone call from Italy, thatīs how far it got, asking why the car was steaming and stationary.
Take a look here http://www.hurleyrotary.com/tristag.aspx

Last edited by malc; 06-21-2004 at 11:43 AM.
Quick reply to this message
 
  #4 (permalink)  
Old 06-27-2004, 05:04 AM
Registered User
 
Join Date: Jun 2004
Location: NC
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I am aware of the problems with the original engine and the fact that the closest replacement would be the Buick 215 v-8. These are scarce and do not give much improvement in performance. I have a Lincoln Mk VII with the 5.0 HO engine as a donor and would like to use it. I have found a site that gives the weight of the stag engine as 447 lbs. and the 5.0 ford as 460 lbs, so that seems to be a good fit. Also found one site that showed a stag with the 5.0 (95 Mustang) installed, but it did not give any contact info for the builder. So, any leads or further advice would be welcome. Thanks, Dale.
Quick reply to this message
  #5 (permalink)  
Old 06-27-2004, 10:56 AM
Tim240Z's Avatar
Member
 
Join Date: May 2004
Location: SoCal
Age: 48
Posts: 179
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
[flame suit on]
Have you considered any of the japanese engines? A rotory, or Sr20 or something along those lines give near V8 power levels in very small packages.....

Tim
Quick reply to this message
  #6 (permalink)  
Old 06-27-2004, 08:15 PM
Registered User
 
Join Date: Jun 2004
Location: NC
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Mostly familiar with British or US iron. Would consider Japanese engine, though. Any thoughts on which rotory would be the most bang for the weight, and what cars ran a sr20 engine. Thanks, Dale.
Quick reply to this message
  #7 (permalink)  
Old 11-03-2004, 12:16 PM
1an 1an is offline
 
Join Date: Nov 2004
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Interesting website

I have found a website you may be interested in http://www.stag1.co.uk dunno weather u have already seen it or not but it could be helpful...
Quick reply to this message
  #8 (permalink)  
Old 11-03-2004, 06:35 PM
Registered User
 
Join Date: Jun 2004
Location: NC
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Talking Stag engine swap site

Hello, and thanks for th eweb site! Looks great. I have just bought a stag that is complete with the chevy 350 drivetrain to drive while I try to figure out what I really want to do with my project car. I have a Ford 4.6 mod 32 valve engine and trans now from a Lincoln Mk VIII and wouod like to see that in the Satg some day! For now I'm still looking at alternatives, and have found some olks put Corvette IRS rear ends in with the engine swap to handle the extra power. Also found one fellow in Texas who did a Mustabg II front cross member, susspension to relace the stock front end and give some more clearance to the engine bay.

Thanks for the reply, Dale.
Quick reply to this message
  #9 (permalink)  
Old 11-03-2004, 07:39 PM
dmc12mk3's Avatar
Member
 

Last journal entry: Fixed some leaks
Join Date: Aug 2003
Location: Chapin
Age: 39
Posts: 237
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
http://www.britishv8.org


All kinds of goodness there. Not just v8 stuff, should help you out some.
Quick reply to this message
  #10 (permalink)  
Old 05-28-2008, 06:20 PM
 
Join Date: May 2008
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Mr Suntail

I have a Stag and its fitted with a 3.5 L rover motor, and a Toyota Supra 5 speed Gear box. this is not too uncommon, and In Australia rover v8's are not to uncommon. the Disadvantage however is the pound to AU dollar conversion if you want to get bits from the UK.
I am very happy with this conversion and to suggest that it doesnt improve performance is like saying "i can run as fast as a car, if its off a cliff"
It goes really well and i clocked a 14.6 on the quater mile at the local Drag track.
i use the original diff sitll, but look into the Datsun rear end conversion for the A shafts. the Datsun Z rear has bearings the stag does not. they fit on real easy, and its a good idea if you are giving it more power. the stag rear would Grap under power in corners and throw you off the road if you have too much grunt and manage to twist it a bit, where the datsun ones are able to twist thanks to the bearings.
If you were going a Jap motor, id use the 4.0 litre V8 out of the toyota/lexus. you can get a kit to attatch a supra manual to it, they are really cheap and and very solid. good power and a six bolt bottom end means very strong, thrashable engine.
The TR8 used the Rover v8 3.5 L which is also found in 4wd and rover sd1's.
make sure its a P6 engine not a P5. the P5 was not as good.
make sure you research the setup on the carbie, and exhaust because the power can (and is proven on many a rover website) be taken from 135hp to 192 hp just by using a holley and offenhouser (i cant spell) and sports exhaust, cause from factory they are choked up big time. hope this helps and if you want me to send photos of mine email me. by the way, its a tight fit. i had to take off the Mechanical fan to fit the radiator in and i have a full time thermo going pretty much all the time.
mr Suntail
Quick reply to this message
  #11 (permalink)  
Old 05-28-2008, 06:52 PM
Old(s) Fart
 
Last wiki edit: Wheelbase database
Join Date: Jan 2007
Location: Virginia
Posts: 5,389
Wiki Edits: 1

Thanks: 120
Thanked 630 Times in 545 Posts
Quote:
Originally Posted by deinosaur2
I am aware of the problems with the original engine and the fact that the closest replacement would be the Buick 215 v-8. These are scarce and do not give much improvement in performance. I have a Lincoln Mk VII with the 5.0 HO engine as a donor and would like to use it. I have found a site that gives the weight of the stag engine as 447 lbs. and the 5.0 ford as 460 lbs, so that seems to be a good fit. Also found one site that showed a stag with the 5.0 (95 Mustang) installed, but it did not give any contact info for the builder. So, any leads or further advice would be welcome. Thanks, Dale.
The Buick engines are quite plentiful if you look under the hoods of most 80s and 90s Range Rovers. EFI and displacements up to 4.6 liters.
Quick reply to this message
  #12 (permalink)  
Old 07-11-2016, 04:18 AM
Registered User
 
Join Date: Jul 2016
Location: Nowra NSW Australia
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Hello...just saw your post...I've recently bought a Stag with the Rover 3.5L engine and Supra 5 speed box. I'n in Nowra. Wouldn't mind a chat at some stage just to compare notes.
Quick reply to this message
  #13 (permalink)  
Old 07-11-2016, 06:50 AM
Crosley's Avatar
Global Moderator
 
Last wiki edit: T-350 rebuild tech
Last journal entry: 1962 Morris Minor 1000
Join Date: Nov 2002
Location: ... USA
Posts: 9,569
Wiki Edits: 1659

Thanks: 1,274
Thanked 359 Times in 320 Posts
swagman: 12 year old thread. Please read dates.

Some of those members have not logged in for 8 years.
__________________
Dont worry how old you are... it is the mileage on your body that adds up.
Quick reply to this message
Closed Thread

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 02:25 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.