Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

Go to Thread: PreviousNext
Go to: Forum ListMessage ListNew TopicLog In


woodbeare1
Edward Hammond

(1 posts)

Registered:
11/14/2020 08:26AM

Main British Car:


Retrofitting a Carb and dizzy to a efi Thor 4.6 v8
Posted by: woodbeare1
Date: November 14, 2020 09:24AM

Hi, I'm at the start of a project, and have a couple of choices I have an Ex-SD1 3.5l with edelbrock carb and manifold and an ex-discovery 4.6l with the Thor fuel injection system but no loom or ECU. I wanted to transplant the carb on to the 4.6 but the 4.6 has no dizzy, I've taken off the front cover but the 4.6 cam has no dizzy drive on the camshaft and the shaft itself is shorter than the 3.5l cam.
Will swapping camshafts work or should I look for an aftermarket cam with a dizzy drive??


tr8
Paul MacDonald
Canada
(38 posts)

Registered:
10/25/2008 04:07PM

Main British Car:
TR8 Coupe Rover 4.0

Re: Retrofitting a Carb and dizzy to a efi Thor 4.6 v8
Posted by: tr8
Date: November 14, 2020 09:45AM

folowing


mstemp
Mike Stemp
Calgary, Canada
(209 posts)

Registered:
11/25/2009 07:18AM

Main British Car:
1980 MGB Rover 4.6L

Re: Retrofitting a Carb and dizzy to a efi Thor 4.6 v8
Posted by: mstemp
Date: November 15, 2020 01:40AM

Yes new cam, timing cover and oil pan with the old carb manifold dizzy etc. Worked fine for me over 10 years.. Then switched back to EFI 14 CUX version on mine. Or back date yours to the 14CUX manifold etc. Or stay distributorless and use mega jolt for ignition, carb manifold.



Edited 1 time(s). Last edit at 11/15/2020 09:17AM by mstemp.


MGBV8
Carl Floyd
Kingsport, TN
(3993 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: Retrofitting a Carb and dizzy to a efi Thor 4.6 v8
Posted by: MGBV8
Date: November 15, 2020 09:34AM

And a pulley spacer for the long nose crank?


Sorry, only registered users may post in this forum.