221 Sprint 1/4 de milla (340 hp).

[78_200_C4]

FORD SPRINT 221 engine brought to 4 liters
-Compression 10.50:1
- 97 mm cylinder diameter / 91 mm stroke
-Iapel forged pistons
-Sáenz lightened connecting rods.
- SPRINT 221 balanced crankshaft w/ 12 counterweights and steel benches.
-SPRINT cylinder head w/ worked ducts and spring clip with an initial load of 68K and final load of 160K
- CARBURATION
_ 67cc with a 0.50mm joint
-Left cam with 9.25mm rise, multiplication 14.25, with spur gear distribution with corrector.
-Multiple Admission made of pipe and twinned with the conductors of the cover
-Exhaust Manifold is 6 to 2 short made by BENINI
-Carburetors (x 3) WEBER 48/48 IDA vertical.
-Advance TDC is 50 degrees
-Multi-disc clutch w/ steel flywheel
-Transmission Box ZF 4th with spur gears made by Pucho Saenz, selector type H.
-They measure 50 cm
-DANA 44 differential ratio 13.46 self-locking and floating bearings
-Front suspension with adjustable damping
- Direction to zipper
- Lupo electronic ignition w/ phonic wheel with crankshaft pulley sensor. And one coil per cylinder with FERRAZZI cables
- Medium Body Oil Pump
-Bomb de naphtha HOLLEY
-Floating pedalboard, accelerator and clutch command Labeled
-Anti-shock/fireproof gasoline tank
-Rear water radiator with Electo and aluminum pipe.
-Rear wheel 10¨ x 15¨ and Front 14¨
-Competition seat 4 points
-Anti roll bar
-Instrumental oil, temperature, fuel gauge and tachometer Autometer Phantom
- Machined by POLISH HERCEG
-Banqueado with 340 hp to the crankshaft and 320 Hp to the wheel.
-Reformed chassis with structured rectangular spout with full aluminum floor

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[78_200_C4]

 

[78_200_C4]

Maybe someone knows what the Argentine racers do to create so much power and RPMs from their Ford sixes. I'm sure it's very expensive. I would guess that a part of it is roller lifters, longer valves and springs for higher lift without coil bind. The info would be interesting. A 221 SP head would be worth buying. 221 SP heads were offered for sale new in Argentina a year or 2 ago. I see used 221 SP heads for sale now but they are not shipped to the US.

 

[bubba22349]

We did have a couple site members from Argentina on the site awhile back one "Fakundo_92" was here starting back in Sept. of 2018 for a about a year he was working on a 221 build. He posted lots of picture of short block parts and the stock 221 head and he also posted pictures and a link on the custom made Aluminum SP heads that they make for the racers. Here is one of his posts sadly the picture's don't seem to be linked anymore but his links to some of the racing class'es seem to work still. They had lots of support from the aftermarket industry for these SP 221's at least back at that time.

https://fordsix.com/threads/informa...sp-and-max-econo-argentina.79003/#post-609856

I can't remember the name of the other guy but he also posted a lot of info and I think he also posted links to these 221's used in their many different racing classes too.

 

[78_200_C4]

Thanks for the info. I'll read all of "Fakundo_92" posts and do a 221 search.

 

[Jmustang_65]

I can get them imported cost is about $3200+ for an aluminum head as of today(Price keeps going up) depending on what work has been done. I can also get cast sprint head. That runs about $2400+

 

[Jmustang_65]

Some examples of the aluminum

 

[78_200_C4]

I can get them imported cost is about $3200+ for an aluminum head depending on what work has been done. I can also get cast sprint head. That runs about $2400+

It's good to know the heads can be imported. Does the $2,400+ for the Sprint head include an intake manifold?

 

[Jmustang_65]

Cast.

 

[Jmustang_65]

It's good to know the heads can be imported. Does the $2,400+ for the Sprint head include an intake manifold?

@78_200_C4 add $150-200 to it.

 

[78_200_C4]

I think the Argentine heads have a different exhaust pattern. That aluminum head sure looks good.