350 Chevy small block in a Jaguar

Posted by Carl King - 21/03/08 at 06:03 am

You gotta love this kind of ingenuity. Here is an email thread from a gentleman in New Zealand with a Chevy small block 350 in his Jaguar. He just needs a bit of help getting the ignition wiring connected.
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Murray J said:
> I have a 1983 Jaguar Sovereign with a late 70s 350. i would like to know
> how to wire up the engine electrics from scratch. I have forgotten how
> everything was put together from when i removed the engine from the donor
> car. Any help would be appreciated. My car is rhd. Many thanks. Murray J.

Hi Murray,

Depending on the emissions sensors for your engine, you could have a
unique wiring requirement, at least as far as ignition is concerned. There
wasn’t much for emissions in the late 70’s however, they accomplished the
bulk of the emissions issues back then by lowering compression and leaning
out the fuel system.

Chevy engine electric isn’t complicated. Does your engine have the GM HEI
distributor, or breaker points?

You should get the schematic for the donor car. You’ll need to figure out
where the corresponding wires are on the Jag. That may be a bigger issue
than the Chevy engine electrical.

Carl

> Murray J said:
>> HI Carl thanks for your reply. The engine was out of a light truck as
>> far
>> as i can tell. The distributor has breaker points. The donor car was
>> another Jag, and when I removed the engine I didn’t make any diagrams
>> regarding the ignition wiring. I do remember there was a large white
>> resistor mounted on the firewall. If you could point me in the direction
>> of a website that might have basic wiring diagrams i would be very
>> grateful,as I am working very much on my own so any help would be
>> appreciated.

> Hi Murray,
>
> Sorry to take so long. Been sick all week.
>
> You mention a resistor on the firewall. All Chevy BP ignitions use a
> resistor wire to ensure the shortest wiring path to the coil from the
> battery (via the starter) is used during the starting phase. Other wise
> the resistor wire provides positive to the coil. The resistor lead goes to
> positive on the coil if this is the correct resistor. The small inside
> terminal on the starter goes to positive on the coil positive as well.
>
> Negative on the coil goes to the distributor.
>
> The small outside terminal on the starter is where the hot wire for start
> position on the ignition switch goes.
>
> Other than that, Battery positive and ground are all you need to make it
> run.
>
> Your charging system components are likely Jaguar(?). I don’t know
> anything about those.
>
> Carl

Murray J said:
> Carl, thanks for reply. I know this is very basic for someone of your
> experience, but i do appreciate the time you took to answer my queries.
> The information will certainly get me on the right path. Thanks again..
>
> Murray.

No Problem Murray.

Enjoy the Jag.

Carl

This entry was posted on Friday, March 21st, 2008 at 6:48 am and is filed under Engines. The entry is tagged under chevy 350 Jaguar. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.