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Chricso
Chris Hughes
Newark Delaware
(2 posts)

Registered:
10/06/2011 01:25PM

Main British Car:
1980 MGB Rover 4.2L FI

4.2L Rover Intake manifold Water outlet flange choices
Posted by: Chricso
Date: October 06, 2011 02:49PM

I'm new to this site and was looking at the MGBV8 photos etc.. I see MANY with a straight forward (literally) designed thermostat housing/flange... Mine outputs towards the left fender and routes the hose OVER the distributor. I'd love to route the upper hose around the distributor if possible.

Can you suggest alternatives???

Thank you



Edited 1 time(s). Last edit at 10/06/2011 02:58PM by Chricso.


Bill Young
Bill Young
Kansas City, MO
(1337 posts)

Registered:
10/23/2007 09:23AM

Main British Car:
'73 MG Midget V6 , '59 MGA I6 2.8 GM, 4.0 Jeep

authors avatar
Re: 4.2L Rover Intake manifold Water outlet flange choices
Posted by: Bill Young
Date: October 06, 2011 04:05PM

There are a few variations of thermostat housings from the Buick/Olds days through the variouis Rover engines, you should find one that fits. If you don't then you could build one to suit your application similar to what we did for the Roadmaster project. We turned the original outlet by cutting it off the housing (aluminum housing) and then welding it on with a filler and 90 degree bend so that the hose would pass in front of the distributor. We did have to turn the distributor 180 degrees to clear the vacuum advance housing.
bill4.jpg



Edited 1 time(s). Last edit at 10/06/2011 04:06PM by Bill Young.


castlesid
Kevin Jackson
Sidcup UK
(361 posts)

Registered:
11/18/2007 10:38AM

Main British Car:
1975 MGB GT Rover V8 4.35L

Re: 4.2L Rover Intake manifold Water outlet flange choices
Posted by: castlesid
Date: October 09, 2011 06:47AM

Chris,

The nearest to you requirement is the housing for the Edelbrock Performer manifold which exits straight with a slight rise to the opening and has provision for the by pass to the water pump as used on the buick 215, early rover and MGBV8 engines,

Checkout the Edelbrock site or retailers like Summit.

Kevin.
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AL WULF
Allen Wulf
Wheat Ridge, CO
(37 posts)

Registered:
01/18/2008 12:48AM

Main British Car:
'67 MGB-V8 '62 MGA MKII Deluxe Rover 3.9 EFI

Re: 4.2L Rover Intake manifold Water outlet flange choices
Posted by: AL WULF
Date: October 22, 2011 02:08PM

Chris:

When I was using a four barrel manifold, I purchased a cast iron thermostat housing for a Buick 300 engine from l Autozone for a little over $10.00. The iron housing points forward. Sometime after that I was able to snag a aluminum one on Ebay identical to the iron one. When I switched to Rover hotwire injection I used the aluminum one rather than the one that came with the Rover manifold. I am using MGB-V8 radiator and my top hose is a L1239 (1 1/2" on thermostat end and 1 1/4" on radiator end) and a L 159 for the bottom end. Both hoses needed some trimming on the 1 1/4" end to fit. I am not using a bypass hose, and plugged the fitting on the timing cover.

Al


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