How about a Bennet Racing 382(383)
turn to page 92 of the august Fast Fords and Muscle Mustangs. Bennet offers the Sportsman 382 for $9,995
575HP
Pump Gas
TrickFlow Twisted Wedge with a stage 3 port
Choose TF EFI or Edelbrock Carb Intake
Canton
Oil Pan
Custom Hydraulic Roller Camshaft
Intake to Pan off Dyno
http://www.bennettracing.com/
or How about a 383/408/418
turn to page 28 of the august Fast Fords and Muscle Mustangs.
D&D Motorsports offers a 383/408/418 long block for $5,695
525HP
HV
Oil Pump
Double Roller
Custom Cam
Gaskets
AFR Heads
Balancer
Flywheel
Lifters
Rockers
Main Support
ARP Fasteners
I believe that to finish it you would need
Oil Pan, Intake, Carb, Water Pump.
http://www.dndmotorsports.com/general/main.asp
I don't know anything about either company, their ads just caught my eye since I am am also building the lesser known 383w.
hope this info is useful
Here are a few others sites you might want to check out
http://www.coasthigh.com/Crate_Motors/crate_home.htm
http://www.dssracing.com/
http://www.enginefactory.com/351W.htm
http://www.ford-power.com/
http://www.golensengineservice.com/
http://www.indymustang.stangnet.com/custom.html
http://www.jcperformance.com/
http://www.indymustang.stangnet.com/custom.html
http://www.panhandleperformance.com/build.html
http://www.speedomotive.com/Assembled%20Engines.htm
Andy