3.0 won't be slow

[Dirtman]

Is that a blue tick?

 

[Curious Hound]

Unknown. We call her a beagle. But she's too tall to be pure beagle. I originally thought bluetick hound was a possibility. We just found her in the weeds on the back of our property. She was about 5 weeks old when we found her.

 

[85_Ranger4x4]

Transmissions.

What would be the best transmission for this project?

IMO you already have it, M5ODR1

I did a quick search to see if anyone makes any aftermarket bells to hang a Vulcan on a C4 and didn't come up with anything. IMO that would be darn near perfect for a trail truck that doesn't see a lot of highway miles.

 

[pjtoledo]

IMO you already have it, M5ODR1

I did a quick search to see if anyone makes any aftermarket bells to hang a Vulcan on a C4 and didn't come up with anything. IMO that would be darn near perfect for a trail truck that doesn't see a lot of highway miles.

there was a guy on shoforum.com that mounted a SHO 3.0 (same bell pattern) in a sand rail. he lives in Arizona and knew of others that
also used the SHO engine. no idea what tranny it was other than it was not a factory SHO unit.
user "off road sho" the vehicle was "the other woman"
try searching there, I don't know if he is still active.
info would be in the 1st generation sections.
or maybe shoforum on facebook


edit:
now that I've thought about it for a few minutes,,,
he made mention of bell housings from early Aerostar manuals, then adapted to a bigger 5 speed.

 

[PetroleumJunkie412]

Eric, stay calm, this is a thread jacking. You will be ok.

So, I've been flowing the 3.0 sho swap truck. Forgive my ignorance, but is the 3.0 sho essentially like a 2.9 DOHC? In other words, is the SHO engine just a Vulcan block with a different set of heads and upper assembly? If so, I'd be reeeeeealy curious what the head and cam mix and match options are. If it's something where you can use any short block to gain a either cheap and good or maybe money spent on a one off custom build out of multiple different configurations.

May be some seriously good options if you can find a high flowing short lower intake to match, even forcibly via machining, to high flowing heads, dish pistons underneath. M62 or m90 is cheap and cheerful enough, and m62 can mount as a direct or remote blower

 

[pjtoledo]

the 3.0 SHO and 3.0 slo/Vulcan share the same bore and stroke, plus the bell pattern. that's where any similarity ends.
other than maybe a bolt or two nothing is interchangeable. except maybe the thermostat.

SHO heads will not bolt onto a slo.
the blocks are different.
SHO heads ( & the whole engine ) were designed and manufactured by Yamaha, they are similar to motorcycle heads.
( we buy valve adjusting shims at motorcycle shops. )
Duratec 2.3 heads are very similar to the SHO heads, if you can squeeze 4 into 3.
even the flywheel/flexplates are different because the SHO has 8 bolts on the crank.
which leads us to an interesting clutch situation:
the SHO has a 9.75" clutch disk that fits inside the 3.0 Vulcan bell pattern. too bad the flywheels can't be interchanged.
I don't know if the Vulcan flywheel could be re-drilled to fit the 9.75.

disclaimer: I know nothing about the 2.9 never touched one.

 

[Curious Hound]

the 3.0 SHO and 3.0 slo/Vulcan share the same bore and stroke, plus the bell pattern. that's where any similarity ends.
other than maybe a bolt or two nothing is interchangeable. except maybe the thermostat.

SHO heads will not bolt onto a slo.
the blocks are different.
SHO heads ( & the whole engine ) were designed and manufactured by Yamaha, they are similar to motorcycle heads.
( we buy valve adjusting shims at motorcycle shops. )

even the flywheel/flexplates are different because the SHO has 8 bolts on the crank.
which leads us to an interesting clutch situation:
the SHO has a 9.75" clutch disk that fits inside the 3.0 Vulcan bell pattern. too bad the flywheels can't be interchanged.
I don't know if the Vulcan flywheel could be re-drilled to fit the 9.75.

Bigger clutch = more smoke????

 

[pjtoledo]

Bigger clutch = more smoke????

'ya got that backwards.
the original 89 SHO had only a 9.25 clutch.
those did indeed get a little smokey.

 

[8thTon]

If you want to get REALLY frisky with a transmission, could always adapt an old Mopar gyro torque to it. Seriously one of the coolest transmissions ever designed, and genuinely bulletproof by design.

My 1953 coronet has one. I hate autos, but this thing is COOL. They were apparently tremendous in dirt in their era and beyond.


Good breakdown from allpar:

The odd M6 and M4 four-speed semi-automatic transmissions

The odd M6 and M4 four-speed semi-automatic transmissions Thanks to Argent, Bill Watson, Sam Chase, and S. Berliner. The M6, sold as Presto-Matic, Fluidmatic, Tip-Toe Shift, Gyro-Matic, and Gyro-Torque, was a two-speed manual transmission with an electric 1:1 ratio unit (loosely called an...

www.allpar.com

Interesting history, thanks for that! I like reading about other ideas that were tried.

 

[Curious Hound]

Did some more teardown this weekend. It all looks pretty god to me. Cam and lifters look ok. I pulled the heads and the cylinders and pistons look ok with a little bit of carbon buildup. Didn't make a detailed inspection of cylinder walls yet. No obvious scoring or heavy wear. No signs of any head gasket isdues. I put the heads back on so I have a place to keep the hoist bolted up as a safety. I still need 2 longer bolts for attaching the block to my engine stand.


Intake gasket was rubbing on two lifters.

Looks excessively "floppy-woppy" to me.

Passenger side

Driver side

 

[racsan]

given the miles on it the timing chain slack doesn’t surprise me. Looks very clean inside, howd the bottom end look?

 

[Curious Hound]

given the miles on it the timing chain slack doesn’t surprise me. Looks very clean inside, howd the bottom end look?

Haven't rolled it over yet. I need a pair of M12x75 bolts to properly attach it to the engine stand. I'll probably have a pair of those when I get home from work Tuesday.

 

[8thTon]

Interested to see how it comes out. I like the design, it's a simple, basic iron block and head 2-valve engine, but it's well done and has an up-to-date valve train. The valves seem to be decently sized.

 

[pjtoledo]

I see the rear lifter bore on the passenger side has an oil channel for the sync unit. too bad there isn't a way to get the oil up the shaft
to the top bushing.

 

[Curious Hound]

I see the rear lifter bore on the passenger side has an oil channel for the sync unit. too bad there isn't a way to get the oil up the shaft
to the top bushing.

Something to think about. Wonder if I could take some measurements and drill a hole.