This was a bench build. You know stuff from under the bench. So its kind of a hodgepodge of parts.
390 block .030 Square decked and align honed.
390 crank cut .010-0.010, FM mains King rods. Had trouble getting end play.
360 rods good prep ARP bolts
Used forged TRW pistons, tops faced, then a step dish added .005 deck height to outer rim. Best measurement guess was around 10cc
Steam engine rings
Balanced by local machine shop.
D2 heads Crafy cnc ported, CJ valves valave job by Blair. Cut on all 3 sides just to clean up.
Fel pro 1020's
Used ED RPM with some port work, blocked crossover (not the best port work but an attempt was made)
Reground and previously ran cam .500 lift, 220/220 flat tappet, 113 sep installed at 107
Comp springs to match, comp retainers/locks
Used rockers OEM non adjustable, pin honed for oversized shafts, heavy wall. Shimmed .045 for better geometry.
Manton 3/8" pushrods, various lengths.
Holley 3310 780CFM (early version) 1" 4 hole wood spacer (to help with heat soak running errands)
Recurved Duraspark with MSD Digital 6
Cheap o Flowtech long tubes, 1-3/4" primary, Full 3" exhaust to Borla straight though mufflers dumped in front of axle.
Used M57A FT pump, 1/4 to 5/16 driveshaft from POP. New pickup tube
Canton screen type windage tray. Stock front sump pan.. Thinking about changing pan to something else. Suggestions?
Compression is a bit lower than the 9.4 to 9.7 goal at an educated guess/calculation of 9.3 but that's ok, just wanted some decent quench. I was trying to be conservative as to run cheap swill 87 octane.. Its a truck and will be used as such.
So whats your guesses on hp??
Barry mentioned 35gph supporting up to 450hp so I should be plenty safe.
I though about making a 3/8 line to the carb but kind of thought it would be waste of effort being the factory outlet on the pump is 1/8npt. Supply side is all 3/8 but it does have to pull from the rear of the truck... Ive kicked around the idea of a new tank anyway, Tanks inc has a solution for an in tank pump for carbs.
No hp goal on this build, just to use some parts I had and make them work together the best I could with the attitude of it will make what it will make. Something a little snotty, fun to drive and dead reliable. 74 F100, C6 convertor 1 step over stock stall 3.73 rear. It's fairly beat up but does have all new floor pans and cab mounts tho, and if never do that again Ill be happy. Just a shop truck. One day when the rust starts poking though some more we might cut it down to a short box and redo the bed sides.
Good suggestion about hooking a trailer up, I do plan on putting a good receiver hitch on it soon as I can build one.
First mock up before cutting pistons and some assembly shots