Is this worth rebuilding?
Posted by Hot_Height2581@reddit | askcarguys | View on Reddit | 7 comments
I bought a 2006 300c 5.7l hemi with 200,000 miles for $200, the motor has a rod knock. I didn't open up the motor yet so I dont know what exactly broke. It kinda sounds like a connecting rod. Im 17 and haven't built a motor yet, should I try to rebuild it or find a motor off facebook marketplace and swap it in.
jckipps@reddit
Depends how much space you have to work. If you have an empty clean garage to yourself, then tear it down and take a look. It won't cost anything to do so. Whether you fix the engine or swap it, you'll still have parts and tools spread out for weeks, so you need to know you can do that without repercussions.
But if you only have a crowded steep driveway to work with, then you'd better skip opening the engine and focus on just quickly swapping one in instead.
SpaceCat72@reddit
Yep, pull the pan and check things over. Maybe a shot at nickle and diming it back together, for now. Find the rod at issue if it is the issue. Check crank surface maybe clean them up. Install a bearing. Good to go for now.
rufos_adventure@reddit
drop the oil pan. change out the bearings. won't be perfect, but will get you around. just don't hot rod it.
nueroticalyme@reddit
It is almost always more cost effective to buy a used engine. You also get a warranty which you dont get if you rebuild it yourself. Car-part.com for used engines near you with warranty. You can usually pay extra for an extrnded warranty.
Hot_Height2581@reddit (OP)
I would get one from somewhere reliable like that but I can't find any under 1k
nueroticalyme@reddit
Well with the coat of maching, parts, and gaskets, you arent going to be able to rebuild it for less than that.
Tinyberzerker@reddit
Check out Car-part.com . You can usually find a used engine with a warranty. I don't care for Mopar, but you can't beat $200