Iím in the planning stage of my 460 build and looking for advice before I commit or buy any parts.
Application: 1972 F250 4x4, C6, NP205, D60/10.25. 38-40Ē rubber
Usage: Weekly street driven, desert off-roading, sand. General goofing around
Core: 76 460, d3 heads
Power goal: 400hp + capability for a little nitrous, on pump gas (91)
Budget: mild, $TBD
Initial research leads me to believe that I can achieve ~400hp something like this
-Stock crank/rods, good bolts, forged pistons
-9.0-9.5 C/R, w/ decent quench distance
-Cam in the 262 range
-D3 heads with exh porting, gasket match, stock valve size
-Edel Perf RPM (or equivalent)
-FITECH 600hp power adder fuel injection (or equivalent)
-Headers, 2.5" pipes
-Duraspark distributor, MSD box (perhaps FITECH ignition advance control)
Specifically, Iím looking for advice on the following items;
1) A decent machine shop in the Phoenix AZ area
2) Exactly what machine work needs to be done to
b. Heads (I'll do porting myself)
3) Piston selection
4) Is there value in larger cam (~268) and would screw in studs be a wise choice to support?
This truck will have to pass emissions. Given 1972 limits and F250 equipment (PCV only) this should be doable with fuel injection and a mild cam.
The C6 will likely have a stock torque converter. Gears are 4.10 for now but will be 4.88s or so in the future for the big rubber. I'm looking for a wide torque band for this heavy truck.
Step 1 is finding a competent machine shop and putting together a plan and a budget. Thanks