GM Engines

[CAMO-MONSTER]

Originally Posted by bodaver32

Thanks for the kind words. Progress is slow as I only get one day on the weekends to work on it.

It is powered by a small block Chevy 350 with a 5 speed overdrive manual transmission. My dad is a small block Chevy guy, so that's what it got.....

It currently has manual steering, on Monday I found a few old buses in a local junk yard with power steering. I am thinking of snagging one and fitting the bus with one. Last summer we put a completely new brake system on it that included a new master cylinder, wheel cylinders, and lines.

Greg

IT WILL STILL BE GM BUT WHY DON'T YOU GO TO http://WWW.500CID.COM

AND GET A FLYWHEEL AND PUT A REAL MOTOR IN THAT 55 LIKE A 1968-1976 Cadillac 472/500 series engines

[CAMO-MONSTER]

HERE IS MORE CAD PIC'S

[CAMO-MONSTER]

WHEN THE 454 GO'S TIT'S UP I WILL PROBABLE GO TO A CADILLAC ETHER THE 472 ORTHE 500 JUST FOR THE RAW BOTTEM END TORQUE.

THIS CAM I KNOW IS FOR STUFF LIKE A CHEVY C10 I KNOW I WAS GOING TO PUT IT IN THE 1967 C10 THAT I HAD

MTS #15 - 472/500 Custom Cadillac Camshaft

SKU: VT90-15

Choosing the proper camshaft for your Cadillac engine is extremely critical, as no other component creates as many variables as its cam. Horsepower, torque, economy, and driveability are all governed by your camshaft choice.

Installation of your cam is just as important as it takes the correct parts and information to get it right. Whether you are a novice or an accomplished engine builder, MTS is here to provide the "Cadillac Level of Service" you need and want. Our dedication and expertise with Cadillac engines comes to you as part of being a customer.

From our five tried and true MTS cams to our custom designs, MTS is the best place to come for your Cadillac Performance needs.

MTS #15 Series Grinds:

RPM range: 2200-5400/ Advertised duration range: 286-295* / Duration @ .050" range: 230-238* / Valve lift range: .520-.540".

Forget the stealth stuff now. The MTS #15 series cam will have a thump at idle, about 950 RPM.

This grind can produce 500 HP with 600 ft-lbs of torque.

Street use is not a problem as there is enough vacuum to run power brakes.

This cam has very strong mid-range power, to an even more impressive, huge top-end power band. Rev it up to 5200-5400 RPM in first gear, shift into second gear, and watch your left front fender yank right up from the torque.

This cam becomes an animal and has an awesome response to 150-200 hp shot of nitrous oxide (NOS).

RPM bands on the #15 grind are right at the edge, if not over the boundary of safety, for engines with stock connecting rods. Forged "H" beam rods are now preferred.

This is the maximum grind for the MTS S/S Spring Kit.

Aftermarket rocker assemblies are also necessary at this level of performance.

Ported heads are strongly recommended.

If you're going to pump up your motor to this kind of horsepower, you really need to make sure all of the components in your build can hold up to, and help promote, the performance of this cam.

#15 grinds work best with a 3.23 to 3.73 rear gear ratios.

PRICE: $225.00





CAMO-MONSTER

[CAMO-MONSTER]

Originally Posted by CHEESE_WAGON

While we are on the subject of different engine swaps..... I may know where a 455 Buick is available (not assembled as of yet) that was originally built for mild street/strip use.... good torque and hp.... Guesstimate approximate 325-350 hp / 425-475 ft lbs. I already have one myself, am considering putting it into the B700 if I can't resolve the broken exhaust stud issue

THAT NAIL HEAD IS OK BUT THE 1972 ELDORADO 500 IS STILL PUTTING OUT 520 FT LBS OF TORQUE STOCK AND IF THAT DON'T TWEEK YOU BUBLE ?

I ALREDY HAVE TWO ODD BALL GM MOTORS, ONE IS A 1968 455 OLDS WITH C CASTING HEADS, NON EGR INTAKE, HEI AND 2.5' DUMP HEADERS TO BILLED MORE TORQUE !
AND A MID 70s 472 OR 500 CAD.

THE 455 I HAVE IS RAITID FOR ABOUT 365 HP AND 500 FT LBS, AND THE CAD IS ?
SO A FOR THE ODD BALLS IN THE GM LINE UP I LIKE THEM THY ARE TORQUE MONSTERS

[timbuk]

se wagon i had a ford with a broken stud so many fords are plagued with this problem mine was in a 75 250 with a 360 i drilled it out right in the truck with a angle drill then tapped it out pushed the drill with a 2 by 4 against the inner fender it worked but that was my last ford every time i had a ford it was always a broken stud issue in the moter hope this helps,hows that 55 bus coming? old skool is cool skool! timbuk

[bus-bro]

In drilling out frozen studs, left hand drill bits are the way to go.

[Joe Monstermaker]

[quote=CAMO-MONSTER]

Originally Posted by "CHEESE_WAGON":2u6kov7p

I may know where a 455 Buick is available

THAT NAIL HEAD IS OK BUT THE 1972 ELDORADO 500 IS STILL PUTTING OUT 520 FT LBS OF TORQUE STOCK AND IF THAT DON'T TWEEK YOU BUBLE ?

I[/quote:2u6kov7p]
The 455 Buick is not the "NailHead" motor, it's from an entirely different engine family that replaced the earlier Nailhead. The NailHead was the old 322 and 401 that had completely horizontal valve covers - a very unique looking V8. They were discontinued in about 1964.

I've done 455 Olds and 500 Cadillac swaps into Chevy trucks that towed heavy loads (17,000 total weight). The Cadillac and Olds are notorious overheaters, if you use one be sure to have an overkill cooling system. The only real advantage of either is cost; you can find a good-running Caddy/Olds/Buick for cheap. If you want to use a manual trans with a 472/500 Cad you'll need a custom flywheel, which blows the cost advantage. You can match or easily beat the torque numbers of a stock 500 with a Chevy 454 with proper selection of parts. The Chevy is by far easier to deal with due to parts availability.

[CAMO-MONSTER]

[quote=Joe Monstermaker][quote="CAMO-MONSTER":3ejft52u]

Originally Posted by "CHEESE_WAGON":3ejft52u

I may know where a 455 Buick is available

THAT NAIL HEAD IS OK BUT THE 1972 ELDORADO 500 IS STILL PUTTING OUT 520 FT LBS OF TORQUE STOCK AND IF THAT DON'T TWEEK YOU BUBLE ?

I[/quote:3ejft52u]
The 455 Buick is not the "NailHead" motor, it's from an entirely different engine family that replaced the earlier Nailhead. The NailHead was the old 322 and 401 that had completely horizontal valve covers - a very unique looking V8. They were discontinued in about 1964.

I've done 455 Olds and 500 Cadillac swaps into Chevy trucks that towed heavy loads (17,000 total weight). The Cadillac and Olds are notorious overheaters, if you use one be sure to have an overkill cooling system. The only real advantage of either is cost; you can find a good-running Caddy/Olds/Buick for cheap. If you want to use a manual trans with a 472/500 Cad you'll need a custom flywheel, which blows the cost advantage. You can match or easily beat the torque numbers of a stock 500 with a Chevy 454 with proper selection of parts. The Chevy is by far easier to deal with due to parts availability.[/quote:3ejft52u]

[CAMO-MONSTER]

The only thing with BBC's is you don't brake the mold.
Unlike the big CAD's. But I know every body wants to
be sheep with there BBC's so be it. when my BBC go's
tits up I will go to a CAD or 5.9 Cummings. Here were
I'm at you can fined more CAD's then BBC's and a lot
cheaper to. If you have a stick you can put a CAD in
front it just google 500 CAD or you can go to
http://www.500cid.com they have a flywheel that bolts on.
I like the odd ball GM motors becouse of the torque
that they put out stock like the 455 olds from 68 to
70 they had 500+ lbs of torque and I have two of
these motors I have a 1968 455 olds and a I think a
472 or 500 cad not shere on that one other then it's
a 1974 by the date code on the th400 behided it.
The 455 with headers and hei I had in a 1972 jeep
wagoner with a spring over and 4" springs and 17/40/15's.

[Jarlaxle]

There might be no V8 less suited for MDT use that a 500 Cad. Two words: piston speeds. The 500 has a 4.3" stroke, longer than even a 454...the sustained high RPM's in a school bus would make for very high piston speeds. This isn't even mentioning the cost of the engine itself and the vast amount of special parts to install it.

[Jarlaxle]

I repeat: the Cadillac 472 and 500 V8 are tortally unsuited for this type of use.

The 500 Caddy has an obscure little brother, the 472.

472's are more common...they ran in all 1968-69 Cads (RWD and Eldos) and in 1970-74 RWD cars. 500's ran 1970-74 Eldorados and all 1975-76 Cads except Sevilles. 1970-up 472's used the same blocks as the 500's. The big change was in about 1972: the switch to open-chamber heads.

I have seen a late 70s-early 80s Fleetwood with a 425 in it, but it may have been the Olds motor

1977-79 Cads (de Ville, Fleetwood, Service Chassis, Eldo) had Cad 425's, the only Olds was the diesel. The 368 (V-8-6-4) was externally very similar to the 425, showed up in, IIRC, 1980. Later Cads had the Olds 307.

The Buick 430 ran alongside the 400 back to 1968 or earlier...it got less notice since it was never installed in anything smaller than a land barge. The 455 replaced it in 1970, also alongside the 400. The Buick 455 ran to about 1976, the 350 a couple years later. The 455 is a stroked 430...same block. A 430 block with a 455 crank & rods is a 455 and vice versa.

None are especially well suited for powerring school bus.

[kamoo]

I bet you could find a great deal on a GM 350 diesel.... jk

[Russell]

The only thing wrong with that is G.M. never made a great Diesel. Unless your talk'in about two stroke oil sling'n Detroit's Russell

[kamoo]

I would say that GM/Detroit has made the best diesel engine and the absolute worst as well, think I would lump the 6.2 in the latter. Anyways, I'd be more inclined to go with a motor that is more common today and take the EFI with it, like a 366, 454 or 502. Personally I think stuffing a 6v71 and 9sp in one would be more fun.

[kamoo]

I only have a little room 8 may be pushing it. Actually a later model 6v92 may be better but I have a potential donor (6v71) but will save that project for next year.

[CAMO-MONSTER]

well as far as a 454 chevy i'm not that impressed with it it's under powered even though it has a cam
and that is why i'm thinking of the cad motor for it's torque and cubes and the 500 is a stroked 472
and i have the hot rod mag of the bad seed that was a good article.

camo-monster

[the_experience03]

Which 454 do you have? The heads on the industrial 454's were terrible. They're a lot like TBI heads for the small blocks in that they really do a great job of making torque until you wind them to even just 3000 RPM's where they just can't breathe enough anymore.

[paul iossi]

it's the restricted flow in the heads that lets them make great torque at low speed, It's the price you have to pay to make power just off idle.

[CAMO-MONSTER]

it's not the stock motor date code on the air cleaner seid 1976 454 and
it is from a 1/2-1 ton the bus came with the v6 and it's not stock in side
the motor don't know what all they did to it or put on it i have not had
it open when i do the valve covers i can get the casting numbers for
the heads.