440 Source.com

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Good and bad. Mostly shoddy valve work on their inexpensive in house brand heads, but all mass producers of heads seem to have valve issues. Plan on valve job and if you don't need it you'll be ahead.
 
I,ve had no issues with my 440 RB 4.15 crank kit.Machinist had some touch ups,resizing the rods otherwise ok.
 
I have had a set of their stealth heads on my dart for over a year now and no issues whatsoever. Took them out of the box and bolted them on. The car picked up 5 tenths in the quarter vs the ported 906's that I took off. For the price, you can't beat em. No experience with their rotating assemblies tho.
 
Never bought anything from them but have heard many a horror story, do a few searches on Moparts. Most if not all of their stuff is Chinese made.
 
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