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Old 11-29-2001, 06:31   #1 (permalink)
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Some detailed INFO on the 3.0L Vulcan & Sho parts...

Here is the link to the thread, I suggest reading it, it has very good information regarding the drop in of SHO rods and pistons.

http://www.rangerforum.net/forum/sho...threadid=13624

Here is some information about the 3.0L Vulcan engine that may be of use for you guys:

SHO Crank in a Vulcan:
Auto Trans: use AT 3.0L/3.2L SHO Crank and rods.
Man Trans: use only the 3.0L MT Crank (otherwise you will need a custom flywheel/flexplate, or welded/redrilled mounting holes in the crank).
Mix and match pullies/harmonic dampeners to fit. All rotating assemblies must be balanced due to the swapping.

(Numbers are as printed in the Ford Motorsports Catalog 2001.)

Pistons:

Vulcan: 3.504" (cast/hypereutectic), available up to 3.544"
SHO: 3.504" (Forged Only) SHO block can accept a .122" overbore to 3.2L!
Pinto 2L: 3.575" (all versions)
Some Chevy (corp.) V-6's are 3.540 and larger

Rods:
Short rods= low rpm/towing, quick to gain RPM's, but can't fill cylinders well. Need larger valves and tall (3.45:1) gears, in town, daily driver, high torque use.
Long rods=high rpm/horsepower, better at filling cylinders, less prone to detonate, more stable at RPM's, likes short (3.73-4.10:1) gears. Highway and high RPM use.

Rod journal diameters
Most all Ford and the Vulcan: 2.123"
SHO: 2.047"
SBC Chevy 2.100 or 2.000"

Rod length
Vulcan: 5.5315"
SHO: 5.780" (same as 351C/4v/HO/Boss/Cobra Jet!!)
302 (5.0L) strocker rod: 5.400"

And some more stuff:

Block Height 8.6610
Stroke 3.1496
Crank Offset 1.5748
Crank type Cast
Main Journal 2.1250
Rod Journal 2.1230
Rod Length 5.5315
Piston Height 1.5354
Piston Pin 0.9122
Deck height 0.0193
Bore 3.5040
Bore Spacing 4.330
Displacement 182.23 2986.78 or 3.0 Liters
Head CC's 47.1 - 50.1
Gasket Bore 3.5750 (Mean taken from 4 places on actual gasket)
Gasket Thickness 0.0400
C/R: 9.33:1
Dispacement Ratio 8.33

From Ford Racing Performance Parts 2001 Catalog and actual measurements

---------------------------------------------------------------------------

What do you guys think?
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Old 11-29-2001, 08:23   #2 (permalink)
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Old 12-17-2001, 22:09   #3 (permalink)
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What about the camshafts? Or would it better to just be better to get the boss mustang roller rocker arms bolted on....maybe both?

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Old 12-17-2001, 22:24   #4 (permalink)
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Question

I am not sure but isn't that a sohc engine? If so, I would check out the rockers from the 281 4.6. These engines are readily available and any modular engine starting from the 92 crown/marq to the 2001 4.6 and 5.4 are identical. Also thanks for posting that info, I have just found the answer I have been searching for. Where to find a flat top piston to fit the 4.6 that has a bore starting at 3.551"
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Old 12-18-2001, 13:10   #5 (permalink)
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The rockers from many Ford V8s and even some Chevy V8s will work, Fredness over at Rogueperformance has actually come up with a Cobra Roller Rocker kit that will drop right into the 3.0L Vulcan and still have enough valve cover clearance..... He had to do some slight milling but it worked.....

With Roller Rockers:



Factory Rockers:



Fred has actually run with these rockers thousands of miles, and so have a few others that have done it. He will have some new sets of rockers available probably sometime in January...
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Old 12-18-2001, 14:54   #6 (permalink)
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i love those rockers i will be using them on my rebuild engine
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Old 12-18-2001, 19:07   #7 (permalink)
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Is there any difference between the 3.0 vulcan from a 96 taurus and the 90 probe. I think that it had roller rockers. Of coarse no where near the potential of the cobra ones
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Old 12-18-2001, 23:42   #8 (permalink)
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No it didnt have roller rockers, you are thinking of a roller cam. That is one way that it produces more power than the old school 3.0's...
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Old 12-20-2001, 08:53   #9 (permalink)
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What is the difference between the Vulcan 3.0 and the other 3.0 and how do I tell the difference to know what I have in mine???
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Old 12-20-2001, 09:15   #10 (permalink)
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whats the advantage of using rockers from another engine?
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