[Guff]

Very interesting swap! Sub'd for sure!

Here's your Original Post, if you're interested:

I curious is anyone’s taken a look the GM Aluminum v6 LFX or derivative as a swap candidate?? HP is 325-335 TQ curve is nice and flat around 220 ish. Motor light (number I’ve seen is 345 but don’t know if it’s dressed at that weight), twin overhead cam with exhaust manifolds integrated into head. This last item is actually pretty slick. Normal exhaust would just be a down tube then out the back. If I’m not mistaken on the LF3 and LF4 (both 425+ HP) version they bolt the turbos directly to the head.


Low mile LFX motors (Less than 10K) look to be around $2K and a 6 speed less than $1K. These are 2012-2015 Camaro setups. It’s drive by wire so the gas pedal is necessary as well. Might be cheaper to buy a whole wrecked car though and there are lots of them around.


Oil pan might be an issue. The Camaro one is more of a rear sump but they are other that are more of a front sump,,, but might still need to be modified. I’ve spent a bit of time looking at the GTO pan straddling the cross member and rack in some of the pictures. As the V6 pan is shorter the trans would need to move forward a bit but it might fit. A custom pan is always an option but the cost would be a killer.
Some of the Miata guys are putting these into their track cars and seem to like the results. I figured if it fits in a Miata should fit in a FRS.

Line up of Motors,, the late model 3.6l LFX are in lots of GM cars
https://en.wikipedia.org/wiki/GM_High_Feature_engine