OldsPower.com  

Go Back   OldsPower.com > Technical Information Database > Engine
Register Forums Gallery Support Us! FAQ Mark Forums Read

Help Support OldsPower.com
Closed Thread
 
Thread Tools Rate Thread
Old 03-23-2004, 04:17 PM   #1
MiseryQ

Posts: n/a
Default Chevy Engine Swap. (Read here)...

Since this gets brought up more and more with new members how about a sticky to get rid of the rumors and give reasons to keep the Oldsmobile an Oldsmobile...

Keep it friendly...

-note- NO questions on HOW to swap here...
 
Old 03-24-2004, 07:24 PM   #2
MiseryQ

Posts: n/a
Default

uh... Who's first?!? :o
 
Old 03-24-2004, 07:49 PM   #3
85_SS
 
85_SS's Avatar

Title: I Have an Olds Life
Status: Offline
Join Date: Sep 2001
Location: Ontario, Canada
Posts: 2,223
Default

I'll take the obvious reason - ease of installation. An Olds 350 is a drop in replacement compared to the mods needed to drop in a SBC.


This is how I look at it - thus this would be the reason I would also put a SBC into a factory SBC Oldsmobile A factory Olds powered car would stay Olds powered at engine swap time as well
__________________

1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WCT5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M20 4-Speed
 
Old 03-24-2004, 07:56 PM   #4
vista71
 
vista71's Avatar

Title: Oldsmohaulic
Status: Offline
Join Date: Mar 2001
Location: S.E. Wisconsin
Posts: 1,743
Default

If you want a chevy powered car buy a chevy.If you live in Canada and got a chev motor from the factory,fix their mistake. If you have a 78-80 with a 305 ,see the Canada advise.

Was that nice or what
__________________
Jamie
1983 Cutlass Cruiser Wagon The GewehrWagen
1986 442 Wife's, getting 330 Olds
1964 Cutlass
1964 442

 
Old 03-24-2004, 08:09 PM   #5
85_SS
 
85_SS's Avatar

Title: I Have an Olds Life
Status: Offline
Join Date: Sep 2001
Location: Ontario, Canada
Posts: 2,223
Default

Quote:
Originally Posted by vista71
...If you live in Canada and got a chev motor from the factory,fix their mistake...

That's just as silly as the Olds to Chevy swap IMO - alot of extra money and work for no reason Why change what is already there?


Keeping a SBC in a SBC equipped car doesn't mean you are the anti-Christ of Oldsmobile I have a little saying anytime someone asks any opinion on what to do with their car - "It's YOUR car, do what YOU want!" I may have a preference as to what I would do personally, but I never impose that on someone else. It's all GM guys - were on the same side here JMHO
__________________

1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WCT5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M20 4-Speed
 
Old 03-24-2004, 09:32 PM   #6
vista71
 
vista71's Avatar

Title: Oldsmohaulic
Status: Offline
Join Date: Mar 2001
Location: S.E. Wisconsin
Posts: 1,743
Default

Well I stated my opinion. When I got my 86 someone put a 305 chevy in there. Didn't last long in there. Now it's in the garage on the floor. If you have an Olds in an Olds, then you have something different, put an SBC in it and it's yawns-ville. Just because cause SBC's are everywhere doesn't mean they have to go into everything.

I like being different. I like Oldsmobile and Olds V8's so sue me
If I wanted chevy power I'd buy a chevy.
__________________
Jamie
1983 Cutlass Cruiser Wagon The GewehrWagen
1986 442 Wife's, getting 330 Olds
1964 Cutlass
1964 442


Last edited by vista71 : 03-24-2004 at 09:35 PM.
 
Old 03-24-2004, 10:50 PM   #7
shiftless

Posts: n/a
Default

Quote:
Originally Posted by vista71
ust because cause SBC's are everywhere doesn't mean they have to go into everything.
And the opposite is true- Just because SBCs are everywhere doesn't mean you shouldn't put them in anything.
 
Old 03-24-2004, 10:51 PM   #8
Conan_Barbarian

Posts: n/a
Default

Look at a small block chevy and a small block olds side by side, and an Olds engine looks nicer and more awe inspiring.
 
Old 03-25-2004, 04:32 PM   #9
MiseryQ

Posts: n/a
Default

1) Ease of swap. 307 to 350, 403, 455 is easier than 307 to 350 Che*y...
2) Performance parts are'nt much more expensive for Oldsmobiloe than Che*y...
 
Old 03-25-2004, 04:49 PM   #10
nero

Posts: n/a
Default

Aren't much more expensive at all, just a little harder to find... but that's the fun! the rewarding feeling ya get when ya piece your olds together
 
Old 03-26-2004, 11:57 AM   #11
425 Racer

Title: I Have an Olds Life
Status: Offline
Join Date: Jul 2000
Location: Ia
Posts: 2,165
Photos:Users Photo Gallery
Default

Here is a topic I posted a while back stating why I think a 350 Olds is superior to a 350 Chevy:

Ok, I have gotten into a few discussions/arguements about Olds vs Chevy 350s. Here are my opinions on the two. Keep in mind I'm no engineer or Guru.

Olds...4.057 bore,3.385 stroke, 6"rod
Chev...4.00 bore,3.48 stroke,5.7" rod
The longer rod helps produce more torque. We get into rod to stroke ratio. "experts" claim a 1.80 to one ratio is ideal. Olds 350 is 1.77. 350 Chev is 1.64. What does this mean? There is less side thrust on the piston as it goes up and down in the cylinder. In other words less wear on the walls. Combine this with the more nickel content as Ryan stated in another thread, means a longer lasting engine.
Olds parts are pretty heavy, that's good/bad thing. Good that they last longer and can take more abuse. Bad that it restricts RPM capabilities. Some circle track guys around here use 6" Olds rods in their SBCs, because of the durabilty factor. It also means the HP and torque ratings are rated at different RPMs between the two.
As with any engine, it takes the right combination of parts Don't try and use SBC ideas on an Olds....tried that at first. Good example is camshafts. Put a Chevy spec style cam in an Olds and you will be dissapointed. I will never run a straight across lift/duration cam in an Olds. An Olds needs "help" on the exhaust side. Even minor exhaust porting on the heads helps a bunch.
Another problem with Olds is oiling. Pumps way too much oile up top. Even on a street re-build, I would install oil restricters to keep the oil down on the crankshaft. Also use a good pump.
In the 18 years I have been racing, I have grenaded only one motor. That was caused by the head breaking off a cheap valve at 6000 RPMs. Over the years a 350 Chevy with about the same combination(ie,weight gearing etc.)will run the same ETs but with more RPMs and won't last as long.
I could go on and on about different things, but these are the basics.Please feel free to comment

As stated in posts above a Chevy belongs in a Chevy and an Olds belongs in an Olds. Ya maybe a Chevy is cheaper on the surface when first looking at things. But for a few dollars more you can have "real" quality and not be like 50 kazillion other guys.
__________________
Nick



A small block with big block attitude!!
380 cubes (+ 45)
 
Old 03-28-2004, 02:32 PM   #12
vista71
 
vista71's Avatar

Title: Oldsmohaulic
Status: Offline
Join Date: Mar 2001
Location: S.E. Wisconsin
Posts: 1,743
Default

Well said !!!!
__________________
Jamie
1983 Cutlass Cruiser Wagon The GewehrWagen
1986 442 Wife's, getting 330 Olds
1964 Cutlass
1964 442

 
Old 03-28-2004, 05:34 PM   #13
RustyFrame83GP

Posts: n/a
Default

I have a Chevy 305 in both my Cutlass and Caprice. Both have held up great. The Caprice will always stay Chevy powered, but if I could get lucky and get a good deal on some Olds parts I'd swap to an SBO in the Cutlass for sure. Just it's not something I could afford right now.
 
Old 04-18-2004, 09:27 PM   #14
oldsgeek

Posts: n/a
Default

i'd say "run what you got". if it's a 350 chevy or a 350 old's!
 
Old 04-23-2004, 08:57 AM   #15
vinnie

Posts: n/a
Wink

Quote:
Originally Posted by oldsgeek
i'd say "run what you got". if it's a 350 chevy or a 350 old's!
well said!

My parents bought me the 83 years ago for graduation. It just happened to have a chevy 350. Am I gonna spend the money & time right now just so I can have an Olds 350? No. Its cheaper and easier for me to upgrade a stock chevy. I just started learnin about cars a year ago & I don't have the room to do the swap or the know how.

Now all of a sudden I feel like the marovingian
 
Old 04-25-2004, 12:54 AM   #16
Crystal Cutlass

Posts: n/a
Default

My '79 Cutlass here in the UK has a 305 S/B, I was told it was factory?!?
 
Old 04-25-2004, 10:29 AM   #17
oldsgeek

Posts: n/a
Default

they did come factory with chevy's,some of the guys here will say "look up at the top it says old's power",I look at it as oldsmobiles with power.Not necessarily have to have a olds motor, but thats just my two cents.
 
Old 04-25-2004, 01:08 PM   #18
85_SS
 
85_SS's Avatar

Title: I Have an Olds Life
Status: Offline
Join Date: Sep 2001
Location: Ontario, Canada
Posts: 2,223
Default

Correct - most Canadian Oldsmobiles have 305's and I wouldn't be surprised if the ones you guys got over there are the same
__________________

1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WCT5 5-Speed
1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M20 4-Speed
 
Old 04-26-2004, 02:14 PM   #19
Jasoncutlass84

Posts: n/a
Default

My '84 Supreme does have chevy 305 factory original. That Canadian car its work fine for my car and still 87,000 miles (137,000 Kms Original). Why I must change to Olds 307 engine, but not need it for now.
 
Old 04-30-2004, 07:56 AM   #20
ddn69

Posts: n/a
Default

Ive heard if I slap a olds 350 in there it wont pass emmisions cause the 350 olds motors are too old. is this true?

Nate
 
Old 04-30-2004, 07:44 PM   #21
vista71
 
vista71's Avatar

Title: Oldsmohaulic
Status: Offline
Join Date: Mar 2001
Location: S.E. Wisconsin
Posts: 1,743
Default

Have you met an emissions guy that can tell the difference between a 260 and a 455 ? let alone a 307/350. You can even run a 350 Olds on the 307 computer
__________________
Jamie
1983 Cutlass Cruiser Wagon The GewehrWagen
1986 442 Wife's, getting 330 Olds
1964 Cutlass
1964 442

 
Old 04-30-2004, 07:45 PM   #22
vista71
 
vista71's Avatar

Title: Oldsmohaulic
Status: Offline
Join Date: Mar 2001
Location: S.E. Wisconsin
Posts: 1,743
Default

Quote:
Originally Posted by Jasoncutlass84
My '84 Supreme does have chevy 305 factory original. That Canadian car its work fine for my car and still 87,000 miles (137,000 Kms Original). Why I must change to Olds 307 engine, but not need it for now.
Why put in a 307 when you can put in a 350 or 403?
__________________
Jamie
1983 Cutlass Cruiser Wagon The GewehrWagen
1986 442 Wife's, getting 330 Olds
1964 Cutlass
1964 442

 
Old 04-30-2004, 07:52 PM   #23
vista71
 
vista71's Avatar

Title: Oldsmohaulic
Status: Offline
Join Date: Mar 2001
Location: S.E. Wisconsin
Posts: 1,743
Default

Everybody and their brother put small block chevies in EVERYTHING. Be different, who wants to eat the same boring cheese sandwich everyday, when you can have a steak?

SBC=the same old boring cheese sandwich.
__________________
Jamie
1983 Cutlass Cruiser Wagon The GewehrWagen
1986 442 Wife's, getting 330 Olds
1964 Cutlass
1964 442

 
Old 05-01-2004, 06:33 AM   #24
swannys78

Posts: n/a
Default

[quote=vista71]If you want a chevy powered car buy a chevy.If you live in Canada and got a chev motor from the factory,fix their mistake. If you have a 78-80 with a 305 ,see the Canada advise.

My '78 in my sig was made in Framingham MA. I VIN checked it. I also have a '78 Cutlass with a '74 350. I was gonna take the engine out of my truck SBC to put in place of the 305 in my sig. It would have been a simple swap. The only thing I would have to change is the dual exhaust at the manifolds. I decided to go the hard route and use the '74 engine in the other '78. That will now be my parts car. I did get alot of crap for the 305, and my defense was, I didn't put it in there!
 
Old 06-10-2004, 11:18 PM   #25
87 cutlass 355

Posts: n/a
Default

I don't get what the big deal is about having a Chevy motor. My car came factory with a 305, when it blew it was a no brainer to stick with a chevy, i wanted a motor that would be cheap to rebuild, and has a huge selection of parts.

you guys say be different, well, more olds cars have olds motors than chevy motors, so I 'd think that keeping the chevy would be different.

the performer intake for a 350 chevy with vortec heads is 249.99 here, the olds performer intake is 349.99. plus you don't have 10 different manifold choices. Same with headers.(thought flowtech leveled the playing field)

another thing about being different. i have a 1983 Mazda RX7, the motor was seized when i bought it for 400 bucks, i bought it with the intention of putting a 350 chevy in it. i want to take the engine an transmission out of my cutlass and put them in my RX7. i am going to buy a performer RPM airgap intake with a Comp XE274 cam and 1.6 roller rockers. I want to mildly port my heads and put a 750 edelbrock carb. I am going to use modifeid chevyII hedmen headers. this should be worth about 460hp, in a 2500 pound car after engine swap!

sure sounds like fun to me, it will be different than all the other RX7's around there.

another thing, if oldsmobile engines are better than chevys, why do people rarely swap out there chevy for an olds? I have yet to see a olds powered 69 camaro, have seen a few chevy powered 69 cutlass's.

even the SBC's hp/cubic inch numbers in the muscle car era blew away all of the olds motors. how about a 370hp 350 in 69 or 70 vette. I never seen no factory olds motor over 400 hp
plus, I can build a 460 hp SBC(totally rebuilt) for 3700 dollars canadian thats like 2600 american, you cannot get that kind of power and value out of an olds, especialy when i am running stock valve sizes and stock heads, other that mild porting on the exhaust ports.

i think it is great that you guys like you olds cars to have olds motors, if my car had an olds i probably would have stuck with it.
 
Closed Thread


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -7. The time now is 02:33 PM.

A vBSkinworks Design

 
Powered by vBulletin® Version 3.6.3
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
OldsPower.com 2012 Herald/Rothe