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Old 11-14-2010, 04:44 PM   #1
jsteph
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Default What do you think about a 455 olds?

Looking at getting a 455 olds, any comments questions, ideas?? Thoughts on the engine itself??
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Old 11-14-2010, 04:48 PM   #2
justinpba
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Default Re: What do you think about a 455 olds?

One of the torquiest motors to come out of Detroit! I love 'em. If you're not planning on running after market heads, look for one pre '70 or find a set of heads off a 425. They had a 'C' casting. Best flow. Good luck!
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Old 11-14-2010, 06:06 PM   #3
hoboy56
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Default Re: What do you think about a 455 olds?

Oh, yes yes. I have one in my 55 Caddy. Came out of my pops 75 Olds 98 Regency, his second to last car he owned. Awesome , torquey motor.
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Old 11-14-2010, 06:28 PM   #4
hotrodladycrusr
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Default Re: What do you think about a 455 olds?

LOVE my 1970 Olds 455 in Big Olds. I've got 114,000 miles on it. It came out of a streetrod with who knows how many miles from that AND who knows how many miles in the original Oldsmobile that it came from.
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Old 11-14-2010, 07:05 PM   #5
mohr hp
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Default Re: What do you think about a 455 olds?

If you want a very pretty engine with iron Olds heads, the top of the exhaust ports will always look bad because of the heat. Not a problem on a beater. rugged torquey motor. not much oil pressure, but doesn't seem to care.
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Old 11-14-2010, 07:18 PM   #6
joe_padavano
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Default Re: What do you think about a 455 olds?

As far as Olds heads are concerned, all the big block head castings except the "J" code smogger heads flow within about 10% of each other. If you plan to do any porting at all, the J heads flow as good as any and are dirt cheap. All BBO heads have chambers that run about 80 cc. Olds varied compression ratio with the size of the dish in the pistons. 442s and Toronados came with 2.070"/1.625" valves. Others usually got smaller valves. The heads can be machined to accept the larger valves. Also, 1971-76 heads (codes G, Ga, H, J, K, and Ka) all have induction hardened valve seats. Earlier heads do not.
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Old 11-14-2010, 07:19 PM   #7
Choppa Hanee
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Default Re: What do you think about a 455 olds?

Just go get it j
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Old 11-14-2010, 07:21 PM   #8
HotRodMetal
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Default Re: What do you think about a 455 olds?

Great Motor. My Dad had one in the Olds 98 we had. Gobs of torque.
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Old 11-14-2010, 07:30 PM   #9
Deuces
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Default Re: What do you think about a 455 olds?

May as well build a home made RAM AIR setup for it.... It should be good for another 10 ponies or so...
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Old 11-14-2010, 07:45 PM   #10
1957Custom
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Default Re: What do you think about a 455 olds?

I learned some really good secrets about Olds heads. Big old Oldsmobile's rule!
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Old 11-14-2010, 10:06 PM   #11
mickeyc
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Default Re: What do you think about a 455 olds?

Hello jsteph, MickeyC from the Louisiana bayou country. Picture this in your minds eye. A30ft. long 13 foot wide cypress wood constructed shrimp skiff. Cypress wood stays wet and heavy by nature. also 400 hundred lbs of ice, A thousand lbs or so of various tools, nets trawl boards. Plus a 100 gallons of gas, and a pair of 200+ lb. steely eyed
shrimp slayers. All powered by a cast iron 455 Olds with very heavy cast
iron water cooled exhaust manifolds and a borg warner cast iron gear
(transmission) This skiff was cranked at 4:00 a.m. and run in the four barrel for anywhere from10 to 20 or miles. Then would pull a 50 foot trawl
for 2 hour tows as many as 4 or 5 times a day or night. After a full day of work, we would then run back to the dock with ( hopefully) several hundred pounds of shrimp. This went on for weeks at a time. The big Olds
kept on keeping on. Ultra reliable motor with gobs of torque.
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Old 11-14-2010, 10:16 PM   #12
Vintageride
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Default Re: What do you think about a 455 olds?

I agree.

I miss my W-33 powered delta. I had lots of puzzled looks from folks at stoplights.

You will have no regrets with the Olds 455.

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Old 11-14-2010, 10:59 PM   #13
Stevie Nash
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Default Re: What do you think about a 455 olds?

Olds = Torque
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Old 11-15-2010, 12:54 AM   #14
56oldsDarrin
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Default Re: What do you think about a 455 olds?

Usually the 70's motors have "smogcamitis".
The modern high-lift , shortish duration cams do wonders.
I am running the Performer RPM cam, and Its docile enough to drive everyday.
Other than that, my motor is a 75, J head, smogger.
However, in an older Higher compression engine, the W30 cam sounds real good.
also,
I ran the car with a points distributor for a long time (it ran fine).
But, then I chose to go GM HEI,... yea it runs better/gets better milage.
The damn thing smoothed out what little "lumpty lump" the RPM cam had.
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Old 11-15-2010, 01:23 AM   #15
dieselc
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Default Re: What do you think about a 455 olds?

Olds are good engines. Strong and reliable, go for it.
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Old 11-15-2010, 06:17 AM   #16
lothiandon1940
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Default Re: What do you think about a 455 olds?

My pal, Willy has one in a Cutlass Convertible. Hauls ass. Torque Monster!
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Old 11-15-2010, 07:04 AM   #17
440shawn
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Default Re: What do you think about a 455 olds?

Had a 68 Olds 455 ran great with tons of torque, go buy it.
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Old 11-15-2010, 07:05 AM   #18
tjet
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Default Re: What do you think about a 455 olds?

I have one in my '59 pickup. It really stands out from the crowd of SBC's. They also have a very nice exhaust note & sound healthy, even with a stock cam.

Very solid following on the web. http://www.realoldspower.com & http://www.442.com just to name a couple. Most of the issues with oiling & heads have been sorted out by Olds perf engine builders

As far as used speed parts, Olds has the advantage over Caddy, Buick, & Pontiac due to the heavy marine jetboat use in the '70's. While not as cheap as a SBC, you can build a very strong 455 for less $$ or equal to a BBC. Another plus: An aluminum head 455 weighs the same as an iron head SBC, & the spark plugs are way easier to get to.

I suggest you get this book too

http://cgi.ebay.com/ebaymotors/Oldsm...sQ5fLiterature

Last edited by tjet; 11-15-2010 at 07:18 AM.
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Old 11-15-2010, 07:19 AM   #19
BOWTIE BROWN
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Default Re: What do you think about a 455 olds?

there is one in town with alum. Heads & been worked , jeeez does that then move.
good motor .
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Old 11-15-2010, 07:28 AM   #20
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Default Re: What do you think about a 455 olds?

I agree with everyone else, lol
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