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olds 455 motor

84CUCV

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complete, wants 350 for it. all he can tell me is that it spins. doesnt know a thing about it. what can you guys tall me about it. thanks
 
84CUCV said:
complete, wants 350 for it. all he can tell me is that it spins. doesnt know a thing about it. what can you guys tall me about it. thanks


Please use complete sentences in the future! It took me a couple of times to read and understand it.

That motor is a torque-monster! If it's like my old Pontiac 455, bone-stock mine put out over 430 Ft-lbs of torque.

Bore out the stock heads and put an 'RV' cam in and you're pushing over 550ft-lbs of torque :eek1: !
 
Great engine grandpa swore by it TORQUE MONSTER give it a good lookover and id say sure but id wait for someone elses opinion. But I would,great reliable engine
 
Snowman1000 said:
Great engine grandpa swore by it TORQUE MONSTER give it a good lookover and id say sure but id wait for someone elses opinion. But I would,great reliable engine
I'm building a 455 for my blazer. Of course, mine is going to be bored .030, hot street cam put in and some other work. I'm hoping to get 500hp at the flywheel and more than 600ft/lbs of torque. All in all, I'll have about $2k in the whole motor with labor and everything.
Find out what letter is on the driver side head. It'll be A-G and may have a smaller letter after it, e.g. Ga. Preferrably you want C heads on it, anything but A or B heads really. Also, have him check the crank and see if there's a big N somewhere on it. That'll mean it's nodular and not cast... the nodular being stronger.
Anything else you want to know? Also, if you pick it up... consider joining www.realoldspower.com
Alot of knowledge there, and a lot of **** talkers too:haha:
 
best engine

84CUCV said:
complete, wants 350 for it. all he can tell me is that it spins. doesnt know a thing about it. what can you guys tall me about it. thanks
I run one in my 74 chev pickup. WOW! If you have the letter ''c'' they are the best heads from the factory that you will find. The ''f'' heads are better, but very rare. if ''c'' heads, it probally has 10.5 compression pistons, and if it had the W-30 cam from a 442, it would have 390 h.p., 510 tourque. These numbers were from Olds, and were way under rated for insurance reasons. In the early diesel days, before chips,big exhaust etc, I could blow the doors off of powerstrokes, and cummins thru the lights. Of course they had better towing power, and overdrives, and the freeway was all abuot them. If the engine is in good shape, or could be rebuilt to high performance specs, you'll have a great engine.
 
One of the reasons my grandpa told me that he chose the 455 was that when it was cast they had a different way of doing it other than sand or somthing like that. Because I guess other companies were leaving some sand in the cooling passages of the engines and it would create hot spots and cause engine problems. Which olds did not I guess ill have to ask him again.
 
Snowman1000 said:
One of the reasons my grandpa told me that he chose the 455 was that when it was cast they had a different way of doing it other than sand or somthing like that. Because I guess other companies were leaving some sand in the cooling passages of the engines and it would create hot spots and cause engine problems. Which olds did not I guess ill have to ask him again.
The sand wasn't the difference. Olds used a higher nickel content in their blocks. A 2-bolt Olds engine is greater than or equal to a 4-bolt Chevy motor.
 
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olds engines are good, but they ave oil flow problems up around 4500 RPM. Good torque engines though. If your not going to spin it a lotta RPM then have a blast.


~Brian
 
Brians89K5 said:
olds engines are good, but they ave oil flow problems up around 4500 RPM. Good torque engines though. If your not going to spin it a lotta RPM then have a blast.


~Brian
This is true to a point... it's a problem, yes. However, it's not a starvation problem. The Olds design flows too much oil to the upper end, starving the main and rod bearings in higher RPM's. There's a couple of mods to counter act this. Using press or screw in restrictors (I suggest the latter) to restrict oil flow to the top end and enlarge the return orifices in the head and block.

With that done, you'll still want to run a HV oil pump as cheap insurance. The biggest thing in the Olds engine is to make sure your main and rod bearings have plenty of oil. Running a deeper pan is a good idea too, a cheap alternative is to run a Toronado pan, it holds 1 extra quart I believe. I'll be running a 9 qt setup on mine with an oil cooler.
 
Brians89K5 said:
olds engines are good, but they ave oil flow problems up around 4500 RPM. Good torque engines though. If your not going to spin it a lotta RPM then have a blast.


~Brian

Check out Mondello.

Main straps are a good idea if you plan on running any RPM and get a good crank.

There was a guy in out here desert racing with a 455 in a '74 olds Cutlass. He pissed off a lot of trophy trucks in the high speed areas. Some of the trucks had $40K into their engines and couldn't pass a Cutlass. On the bad side the 455 needed new mains after every race.
 
NO, STAY AWAY FROM MONDELLO!!!!!

Go over to realoldspower and do some reading and searching. It's the CK5 of the Olds world. Lots of info over there. There was another crash a couple of years ago so the older stuff is lost, but I think it's probably built back up pretty good since then. I haven't been there much since I sold the 442 last year, but that was my second home for more than a few years. I think there's a quite a few guys over there from your area too. Can't go wrong with an Olds motor. :wink1:
 
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