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I was looking at the 3.4L V8 SHO specs and realized that the bore/stroke are the same as the 2.5L Duratec (Basically grafted on 2 cylinders, still has same 60 degree V angle). I'm now wondering if they used the same rods and pistons or did Yamaha throw in some nice forged parts (that may fit our cars)? Anybody know?
1999 Amazon Green SVT Contour (#554/2760)
Stock SVT Duratec V6 with:
Intake- K&N filter/75mm MAF meter
Exhaust- MSDS Y-pipe/Bassani catback
Durability-Ford "dual mode" damper, Mobil 1/K&N oil filter
179.2 FWHP at 6900 RPM
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Dunno, I was entertaining the notion sometime last year. It would be nice to know what Ford did for the Indigo concept as well....
\'94 Cobra #4963/5009, black on black, not quite stock Formerly owned a black '00 SVT, #1972 Join the SVTOA! RIP - Ray "Old Fart Emeritus" McNairy
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That's an awesome idea... The 4.6 piston would take some subterfuge to get into the 3.0, but the 3.4 might just be a little easier..
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That's a very good question, and I'd be interested in knowing the answer myself. My take on this is that any stresses from the higher hp output of the SHO get distributed amongst the parts associated with the two extra cylinders. What was the power rating of the SHO V8 - around 240hp? That's 30hp/cylinder the SHO V8, compared with 33hp/cylinder for the SVT 2.5L and 28 hp/cylinder for the non-SVT 2.5L. So I would guess that the rods and pistons in the SHO V8 are under less stress (individually) compared with the ones in the SVT 2.5L, and I'll speculate that Ford used the same ones.
Black '98.0 GL V6/MTX, tints, SVT airbox (sans fender boot), stock muffler replaced with spiral racing muffler, A6 side markers, Cougar 16" polished wheels w/ bald 205/50/16 Yoko A520's, Mobil 1 5W30, Castrol SATF/Ford FM tranny cocktail, 9005 high-beam bulbs all around, re-aimed stock foglights
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Wasn't the SHO V8 a Yamaha design, just like the older SHO V6? Or am I way off base here?
"When I take action, I'm not going to fire a $2 million missile at a $10 empty tent and hit a camel in the butt. It's going to be decisive." - President George W. Bush
95 Contour SE ATX V6
"Cracked" Secondaries
DMD Installed
SVT Brakes
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Originally posted by Sandman333:
Wasn't the SHO V8 a Yamaha design, just like the older SHO V6? Or am I way off base here? Yup...they are both a Yamaha design.
Andrew Morris \'99 SE Zetec ATX All of life's big problems include the words "indictment" or "inoperable." Everything else is small stuff.
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Originally posted by Sandman333:
Wasn't the SHO V8 a Yamaha design, just like the older SHO V6? Or am I way off base here? Bottom end was essentially 1.33 Duratec shortblocks. Top end was 100% Yamaha.
\'94 Cobra #4963/5009, black on black, not quite stock Formerly owned a black '00 SVT, #1972 Join the SVTOA! RIP - Ray "Old Fart Emeritus" McNairy
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"When I take action, I'm not going to fire a $2 million missile at a $10 empty tent and hit a camel in the butt. It's going to be decisive." - President George W. Bush
95 Contour SE ATX V6
"Cracked" Secondaries
DMD Installed
SVT Brakes
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NO! NO! NO!
The older SHO was completely different from the V8 SHO. The V6 SHO was fully a Yamaha design, but the block was based on the old 3.0 Vulcan design. Nothing on the SHO V6 fits onto a Duratec.
The V8 SHO is essentually a 2.5 Duratec with two additional cylinders. The V is a 60 degree just like the Duratec. It includes a balance shaft to help make it smooth.
I don't know just how much Yamaha collaborated in the design, but the parts were all made in the USA and then shipped to Japan where Yamaha assembled it for Ford. At least that is what I remember reading when the V8 SHO was first introduced.
Jim Johnson
98 SVT
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