Id just swap the engine instead of rebuilding it. Theres tons of 3.7 engines around with low mileage

 

Wish I was in the USA/Canada among those tons of used engines, in perfect condition&low prices. This is the purpose I’m going to undertake such a challenge - rebuild&fix it. Half of a cost of used engine. Rare&very expensive, rarely in really good condition &low(er) mileage especially when it comes to 3.7 2006-2007 version (2008 and later are rather available). Parts&grinding shop - that’s my cost (half of a cost of an used engine, even with customs&taxes and shipping to Europe), and a challenge itself (after years spent in a garage - as a hobby techniczna, but performing all possible repairs) on that particular car. Doing it once, and not touching the engine for few years (valve job, timing, etc).

 

You could just throw in a crate engine!