I love the York A/C unit. A 351C or 351W or 351M or 400 Ford York will work JUST fine.
They suck up a lot of power, but guess what the old 74-79 Ford 2.8 V6's ran? York or Tecumsah twin piston A/C unit. And the 2.8 136 hp Mercedes Benze 280E.
A four bearing 171 cubic inch 2793 cc "2.8 V6" Capri, Pinto, Mustang II, Fox Stang or Capri or Ranger or AeroStar engine was born as a 135 hp engine in Europe, and than came to the USA from 1974 to 1984. It made 93 to 114 hp net as a US import engine, and almost always had a York or Denso or Sanden A/C unit on it.
Specs for the US 170 are 2785 cc
Net hp was only 83, despite 105 or 100 gross claimed.
It has a 3.5 bore, 2.94" stroke verses the 3.66 by 2.7" of the German V6.
The only thing bad about a 170 is
1. its lack of a free breathing head and
2. that it never got a nice big 1.08 2-bbl Ford 4.2 or 5.0 V8 carb like the 109 to 114 hp engines ran from 1979 to 1984.
3. Its lacking a Duraspark II electronic ignition
4. Its lacking a 276 degree cam with 370 thou lift
5. If automatic, its lacking a high stall 2200 epm converter like all the 1974 to 1984 C3/c4 or C5 transmissioned German V6's ran. Bronco II's ran a non lock-up C5 transmission in a C4 truck case. All the blue colored 3.3 engines C4 gearbox will fit your 170.
So do the 1 to 5 mods.
So get a later big log head, plane it 90 thou, and track down an old used 22 to 26 thou 200 Ford D8 head gasket
Add a 2150 Motorcraft 1.08" venturi carb with
Crosley's or
Wsa111's brasied up direct mount 2-bbl conversion, and place the carb the right way around using
cr_bobcat's Lockar cable Linkage
memberlist.php?mode=viewprofile&u=192238
Get someone to machine down the Duraspark II haft to fit the early 170 drive.
Add a modern wide lobe center 264 Clay Smith or similar Schnider or Howards cam with a lot more lift.
Add a proper Vintage Inlines header or later model 1980-1983 B or X code exhast header.
For transmission, you've got any number of options, but I've loved my little C3 junkayard transmissions, and you can have the C4 torque converter re profiled to suit if you use the Pinto 2 liter optional high stall units.
Whammo! you'll be making 135 horsepower, 155 lb-ft of torque on a 8.7:1 compression ratio and you'll be able to run a Sanden A/C unit like
RickWrench's
All the Emissions era 2.8 liter engines, even over head valve, were easliy able to make an A/C unit work. The old Pinto 2.8 had a high restriction exhasut, and a 5200 Holley Weber carb which lost 16 hp over the same years Z code Mustang or Capri.
Even with 109 hp, those Mustang 2.8 Automatics were able to run away and hide from any 85 to 94.5 hp 3.3 1979-1982 Mustang.