My canam SBC EFI engine is up for a refresh and was just toying with the idea of replacing with a fairly standard LS3. I must say that the engine has been (and still is) good and I built before LS and EFI became the way to go!

Use of the car is mainly touring in France and the occasional trackday or sprint.

So, my questions are:
1 Has anyone gone through the process and/or done a costings spreadsheet that they would be willing to share?
2 Recommended suppliers for LS3?
3 Is it necessary to go dry sump for the LS3?
4 CAT or non-CAT?
5 Can I retain my gearbox with right hand shift cos I prefer it.

Thx

Kind of did it for LS7 decided not to though.
Now going (I think) for World products old style small block with LS2/3/7 heads on it with full ecu system and dry sump.
Engine is not that cheap depending on spec but you can save £1500+ by not needing new adapter and clutch. £1500 by not needing new alternator aircon and serpentine pulley system and a lot of fitting hassle.
LS power and torque and hopefully better economy if ignition can be set correctly.
However I have already converted my SBC to EFI and removed distributor and fitted mappable ignition so I have already got some of the stuff.
Righthand geearchange is ok.
I would not fit cats unless I was some kind of eco warrior. Not sure if that would upset the std ecu with 4 O2 sensors?
A std LS of some sort is prob the best from a cost/resale value point of view.
I like to do something a little different, deal with the hassle and not worry too much about the resale bit.

Be careful. You will be tempted to upgrade/replace parts that don't look their best or you will see some nice-to-have trinket to add to the engine bay that will squeeze it's way onto your credit card.

You will probably find the engine is only half the cost of the upgrade. However, the LS engines are an easy to use powerhouse.

Dry sump? - yes.

Good luck.


Paul

I can confirm that :-)

I'll drop you a mail over the weekend Phil. Just returned from a trip abroad.