4.6 Rebuilt Engine Supplier

[ryandgreen]

I recently purchased a 2002 with the 4.6 that has a terrible knock. I found a shop out of LA that is offering basic rebuilt long blocks for $850. Has anyone ever purchased an engine from Mathews Industries or heard anything about them? Here's their website http://www.re4-6.com. I'm not sure how they are offering the engines at this price....

 

[ryandgreen]

Or if you have any recommendations of where to purchase an engine, I can't find a used one with low miles for that good of a deal right now on the used parts websites.

 

[GuardianSport]

I see RockAuto has a rebuilt long block for $2600 Canadian.