351 Windsor

if you are just looking for a place to start(just the block, crank rods,ect) the local junkyard, or classified's on here, or ebay, or a local engine shop, or the rest of the internet, or maybe just go look outside maybe the 351w fariy left you something special under the single wide
 
www.coasthigh.com but they only make 393W and up.

I called local run of the mill engine rebuilder. mine is for lite street duty.
so ordered:

Stock 351W roller block, .03 over bore, ARP rod and main bolts,
Forged 13cc dish pistons, Oil pump, flywheel, balancer, TFS stage 1 cam, timing chain
$2,300

Only taking 1 week for them to build, should be ready end of next week.
If you dont need a race engine, dont build one.

With those parts it's ready for heads, oil pan and intake.