The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
It is currently Thu Mar 28, 2024 6:00 pm

All times are UTC




Post new topic  Reply to topic  [ 5 posts ] 
Author Message
 Post subject: Re: 1850 cylinder head
PostPosted: Sun Apr 18, 2021 5:01 pm 
Offline
TDC Member
User avatar

Joined: Fri Apr 15, 2016 11:08 am
Posts: 691
Location: Ayrshire, Scotland
As far as I know the 1850 engine had exactly the same specification throughout its production. Where are you getting the information about early and late heads being different? The 1850 head IS different to the 2 litre TR7 head.

_________________
Mike
(1969 MGB GTV8, 1977 Dolomite 1850HL, 1971 MGB roadster now all three on the road)


Top
   
 Post subject: Re: 1850 cylinder head
PostPosted: Sun Apr 18, 2021 6:36 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!
User avatar

Joined: Thu Oct 06, 2011 1:13 am
Posts: 3173
Location: The continent
The Stromberg 1850 heads had smaller diameter valves. TR7 heads are totally different, all of them.

Jeroen

_________________
Classic Kabelboom Company. For all your wiring needs. http://www.classickabelboomcompany.com


Top
   
 Post subject: Re: 1850 cylinder head
PostPosted: Sun Apr 18, 2021 7:23 pm 
Offline
Future Club member hopefully!
Future Club member hopefully!

Joined: Mon Dec 03, 2012 6:04 pm
Posts: 1549
The TR7 has the same bore size as a Sprint, it is kind of like an 8V Sprint. The 1850 block has a different size cylinder bore.


Top
   
 Post subject: Re: 1850 cylinder head
PostPosted: Wed Apr 21, 2021 9:48 am 
Offline
TDC Member

Joined: Sun Jul 19, 2009 11:41 pm
Posts: 1031
Location: Silsoe, Beds
There are at least four cylinder heads that looks similar.
Left bank Triumph Stag
Early 1850 with smaller valves (Strombergs)
Later 1850 (SUs)
TR7

I bought a head from a stag owner as he thought that's what the head was, he was then told 1850, I was later advised that it wasn't an 1850 either but was a TR7. The V number on the side is important when looking for a replacement.

Malcolm


Top
   
 Post subject: Okay........
PostPosted: Wed Apr 21, 2021 10:20 pm 
Offline
TDC Member
User avatar

Joined: Thu Aug 09, 2007 1:22 pm
Posts: 6475
Location: Caithness, Scotland
Cylinder heads for the 1850 and 1850HL are easy to distinguish visually.

1850 heads have a (water transfer) slot below the ports for cylinders 3 and 4,
said slot is not present on HL heads.

The castings themselves are other ways different, so much so that the water transfer housings not only
look different externally but are actually not interchangeable.


Ian.

_________________
TDC Forum moderator
PLEASE help us to maintain a friendly forum,
either PM or use Report Post if you see anything you are unhappy with. Thanks.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 5 posts ] 

All times are UTC


Who is online

Users browsing this forum: AhrefsBot [Bot] and 16 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited