Hi folks,

I have a few questions about F4TE ( I think that's the casting # ) 351 roller cam blocks / motors... I think these blocks were made from 1994 thru the early 2000's until the mod motors came out. From what I've heard, the F250's and E250's of that timeframe all had the roller cam setup, and the F150s had the roller block - but used a hydraulic flat tappet ( non-roller ) cam setup. So all the blocks of that era are the same, but the only motors that actually had roller cams were the F250s and E250s.

What would a nice F4TE 351 roller cam block be worth, assuming it is a standard bore and in good used condition?

What would be a fair price for a complete 351 roller motor - 38k miles - complete from intake to pan - with wiring intact - from a 1999 E250 van?

Now - what kind of power can a 351 roller block safely handle? If I were to build a nice 383/393/408 stroker and add 10 lbs of boost ( supercharger ) to it, I'd hope to make 550-600 streetable horsepower or maybe even a little more. Are the roller blocks capable of handling that? I've heard they're good to 700+ horsepower, but don't have any proof of that.

Thanks in advance for the help. Now, what do you think???