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Old 04-06-2008, 08:17 PM   #1
'77OmegaMan

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Default 1965 Olds 330???

Whats up guys? I was just wanting to know if anyone knows anything about an Olds 330. Its bored 60 over and got performance parts in it...so i was told. Its spring break and time to replace my 231, is there anything someone could tell me to help me get a better fell on what i am putting in my car. Histroy, Facts, original specs...anything...

Thank for your help
Josh
 
Old 04-06-2008, 08:22 PM   #2
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http://www.oldspower.com/vb/showthre...&highlight=330

I hope this helps.
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Old 04-06-2008, 08:36 PM   #3
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I believe the '65 had the square bore intake and had the Rochester "4 - jet" carb that matched that intake. It should have a forged crank too.
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Old 04-06-2008, 08:52 PM   #4
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Quote:
Originally Posted by '77OmegaMan View Post
Its bored 60 over and got performance parts in it...
So if that is true, it has been modified from its original factory configuration and there is no way to tell what its performance potential is without knowing what compression ratio and camshaft it has now.

Do you have any information at all about what has been done to it?
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Old 04-06-2008, 08:52 PM   #5
'77OmegaMan

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so generally is that a good motor, ok, or what is your opion...

Thanks
 
Old 04-06-2008, 08:54 PM   #6
'77OmegaMan

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I was told that it has a "mild" cam with flat top pistons....let me see if i can recall the thread...
 
Old 04-06-2008, 08:56 PM   #7
'77OmegaMan

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thread found:

http://www.oldspower.com/vb/showthre...light=Olds+330
 
Old 04-06-2008, 09:01 PM   #8
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Quote:
Originally Posted by '77OmegaMan View Post
so generally is that a good motor, ok, or what is your opion...

Thanks
Yes, it is a good engine. 330s are basically a slightly smaller bore 350, so whatever can be done to a 350 can be done to a 330. In fact, the 330 block can be overbored to standard 350 size and 350 pistons can be used. At that point you have a 350 with a forged steel crank and 45* Cam Bank Angle.
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Old 04-06-2008, 09:15 PM   #9
'77OmegaMan

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What about the heads. I have herd that they are nailheads...? Is the ture...something like they have small valves or something...
 
Old 04-06-2008, 09:19 PM   #10
71CutlassConvertible

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I do not know hat you mean by "nailheads" but I assume it is not good? The 330s have very good heads, but they did use slightly smaller valves than the 350. I'm not sure what size they were, but if you are not happy with them they can be changed out for 350 sized valves. That and some porting would make them flow very well indeed.
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Old 04-06-2008, 09:21 PM   #11
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thanks a lot...
 
Old 04-06-2008, 10:03 PM   #12
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the 330 is pretty much the same as a 350. advertised numbers are basically the same. they run and drive the same as the equivalent 350.


bill
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Old 04-07-2008, 10:34 AM   #13
Run to Rund

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I don't think you could get away with boring the 3.94" bore of a 330 to 4.057 of a 350.
 
Old 04-07-2008, 02:46 PM   #14
'77OmegaMan

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ok guys i am thinkful for the help so far and have another question


has anyone tried to use G-body headers on a X-body car...like my Omega...or so on...

and is anyone impressed with some cheap mufflers they have bought that they would recommend or just stick with the 40 flowmasters???
 
Old 04-07-2008, 03:25 PM   #15
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Hooker Aero Chambers FTW
 
Old 04-07-2008, 03:29 PM   #16
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I've never run G-body headers on an X-body or vice versa...but it's worth a shot...try it out and see if maybe just a lil' BFH love is all that's neded to get them to fit!

As for mufflers, DynoMax Super turbos flow VERY well (better than Flowmasters) and are around 40 bucks a pop. Thrush Turbos are okay, sound pretty old-school musclecarish, and are around 20 bucks apiece. I;ve used them both and have been very happy with both.

The 330 #4 heads (is that what you have?) are amongst the best of the small-block Olds heads, and can be machined to use the larger intake valve of the later #4A heads (from a 403). However, I believe the #4 exhaust valve is slightly larger than a #4A's, so no need to swap them over. Gently polish/port them, and you will have a set of great SBO heads!
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Old 04-07-2008, 03:58 PM   #17
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"nail head" is a buick term
 
Old 04-07-2008, 05:57 PM   #18
'77OmegaMan

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My heads are #2 not so good from what i have heard
 
Old 04-07-2008, 06:29 PM   #19
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Nail head Buicks have teeny, tiny valves and that's where they get the nick name - from the size of the valve heads.
The G-body headers may fit the Omega subframe but in case they don't try 68-72 A body headers. I had a 73 Trans Am and after grenading a couple of 455 Pontiacs I stuck a 455 Olds in it with 403 T/A engine mounts and headers from a 69 442. They fit perfect. The subframe on your Omega is very similar to the 70 -81 F body I believe so it'll probably work.
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Old 04-07-2008, 06:48 PM   #20
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Quote:
Originally Posted by Run to Rund View Post
I don't think you could get away with boring the 3.94" bore of a 330 to 4.057 of a 350.
you should look at the thickness of a 330 block. the '64 330 (#1 block), i have will do it no problem. remarkably thick walls- .060" out of each wall isn't hardly going to "dent it". a slipper skirt piston might be required.


bill
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'92 CHEBBY DIS-ASTRO (GAS PIG)
'97 GEO METRO LSi (AVG. 36.5 MPG) winner of car vs. deer contest
 
Old 04-08-2008, 02:48 PM   #21
'77OmegaMan

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Hey guys got my old engine out (231, 3.8) and am just making sure i have everything i need in place so on my links are some pictures of my intake i am missing some bolts and wanted to know if anyone knew if there where any sensors or anything that went in there...and my engine monunts don't line up and the standard ones from advance use studs instead of two mount holes. any sugestions on how to ge it to work...

Thanks Guys
 
Old 04-08-2008, 02:53 PM   #22
'77OmegaMan

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Hey guys got my old engine out (231, 3.8) and am just making sure i have everything i need in place so on my links are some pictures of my intake i am missing some bolts and wanted to know if anyone knew if there where any sensors or anything that went in there...and my engine monunts don't line up and the standard ones from advance use studs instead of two mount holes. any sugestions on how to ge it to work...

Thanks Guys
 
Old 04-08-2008, 06:22 PM   #23
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Quote:
Originally Posted by '77OmegaMan View Post
What about the heads. I have herd that they are nailheads...? Is the ture...something like they have small valves or something...
I think when you say "nailhead", you may be refering to the 64' 330, which had shaft mounted rockers. In 65' olds went to the stud mounted rockers. The 64s are still a good head, just a little difficult to find valvetrain parts for that setup, I believe.
 
Old 04-08-2008, 08:18 PM   #24
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The old Buick "nailhead" motors are SUPER easy to identify, with thier vertically-mounted valve covers. Super-cool looking motors...I had 300 (baby nailhead) in a '65 LeSabre, and a a pal had a Wildcat with the 401.
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Old 04-08-2008, 08:58 PM   #25
'77OmegaMan

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How eles do i get a pic to show up if the file size is to high to attach
 
 


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