I have been wanting to build a 351W based 427. The Dart blocks can go easily to 4.125 on the bore (advertise 4.165 max). This allows for a 4.00" stroke and a more comfortable rod angle. Also, the Dart block comes with the slightly smaller 351C main bearing (higher rpm with the different bearing speed vs 351W main).

Finally, I want to keep my ultimate track coupe light, so I would like the aluminum block...

So... I saw this eBay item today... Sold by RoushYates. Am I missing something? Roush selling on eBay...and it is ... $1,800 cheaper than what they are selling on their own web site?!?!

Same number - "Dart 31345235 Aluminum Race Series Engine Block SBF 4.125" Bore, 9.5 Deck"

http://www.ebay.com/itm/Dart-3134523...eabac1&vxp=mtr

http://www.roushyatesparts.com/dart-...t-31345235.htm

It still isn't cheap, so I don't want to make a mistake and get the wrong block! Am I missing something?