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Old 12-30-2004, 12:34 AM   #1
Saturnaddict
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Dazed slightly confused

i just got a 94 saturn but don't know the model. how do i tell??! Also, how do i swap the head of a dohc into a sohc engine?
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Old 12-30-2004, 01:43 AM   #2
SLeepr
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Default Re: slightly confused

You're quick to be an addict if you just got a Saturn!

SOHC coupe = SC1
DOHC coupe = SC2
SOHC sedan = SC1
DOHC sedan = SC2
SOHC wagon = SW1
DOHC wagon = SW2

Before 1993, the SC1 and SC2 didn't exist. It was simply called the SC and came with a DOHC engine.
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Old 12-30-2004, 01:57 AM   #3
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Default Re: slightly confused

Quote:
Originally Posted by SLeepr
You're quick to be an addict if you just got a Saturn!

SOHC coupe = SC1
DOHC coupe = SC2
SOHC sedan = SC1
DOHC sedan = SC2
SOHC wagon = SW1
DOHC wagon = SW2

Before 1993, the SC1 and SC2 didn't exist. It was simply called the SC and came with a DOHC engine.

Correction, sedans are SL1 and SL2 accordingly. Yeah I know you just mistyped. It should say on the valve cover I think if its SOHC of DOHC. Or if your car is slow as balls its an SOHC.
...
'01 SC2 - sold
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Old 12-30-2004, 02:04 AM   #4
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Default Re: slightly confused

Dang, I have to get the strings from my brain to my fingers checked. Good catch.

As far as the second part of the question, I'm going to assume you have a SOHC motor right now. While you can do a head swap and use the SOHC bottom end, I would just swap motors instead. It's probably easier in the long run and could save you some headaches. Look for a low-miles, used motor with a warranty (if you can get one). You will also need to make sure that the PCM and wiring harness jive with your motor. There should be a few posts about motor swapping on here. Do a search for the play-by-play.
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Old 12-30-2004, 02:05 AM   #5
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1998 SC2
1992 SC
Default Re: slightly confused

When I got my first Saturn I didn't know the difference between SL, SL1 and SL2. Now I find myself calling people about Saturns for sale and asking things like "Are the bumpers the same color as the car?" or "Does it have pop-up headlights?" because single cam/dual cam doesn't seem to mean much to most people.

George
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Old 12-30-2004, 11:59 AM   #6
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Default Re: slightly confused

heres a good guide to what you have....

half way down...

http://www.turbosaturns.net/forum/viewtopic.php?t=2211


yep. if you put a dohc head on a block with sohc pistons, youll end up with slightly lower compression.. not what you want non turbo..
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Old 12-30-2004, 12:42 PM   #7
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Default Re: slightly confused

i did have an sl1 a couple years ago, then i wanted to go honda or somethin cause i sold the car but i just couldn't stay away from saturns. i know the diff between sl, sl1 & sl2, but don't know how to differentiate between engines since i forgot what the saturn dohc looks like. this thing doesn't have much of anything tho, i think it may be a sohc.
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Old 12-30-2004, 12:47 PM   #8
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Sad Re: slightly confused

dang, nevermind it's a sohc
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Old 12-30-2004, 05:36 PM   #9
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Default Re: slightly confused

Welcome to my world of pain.
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Old 12-30-2004, 06:15 PM   #10
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Default Re: slightly confused

Quote:
Originally Posted by SLeepr
You're quick to be an addict if you just got a Saturn!

SOHC coupe = SC1
DOHC coupe = SC2
SOHC sedan = SC1
DOHC sedan = SC2
SOHC wagon = SW1
DOHC wagon = SW2

Before 1993, the SC1 and SC2 didn't exist. It was simply called the SC and came with a DOHC engine.
change that to:

SOHC sedan = SL1
DOHC sedan = SL2

and don't forget

SOHC sedan base = SL(easiest way to tell - no rear speakers)
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Old 12-31-2004, 05:59 AM   #11
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Default Re: slightly confused

Quote:
Originally Posted by Bigbadbert
Correction, sedans are SL1 and SL2 accordingly. Yeah I know you just mistyped. It should say on the valve cover I think if its SOHC of DOHC. Or if your car is slow as balls its an SOHC.

Yeah we got that already. Just do an engine swap! Its worth it.
...
'01 SC2 - sold
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Old 01-01-2005, 05:11 PM   #12
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Default Re: slightly confused

how difficult, tho, on a frustrating scale of one to ten?
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Old 01-01-2005, 08:44 PM   #13
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Default Re: slightly confused

If you are mechanically competent, 3. Otherwise, 8.

Actually changing the engine and trans is real easy. For me the hardes part is probably the instrument cluster, which isn't that bad.
...
-Travis
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Old 01-02-2005, 04:17 AM   #14
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Default Re: slightly confused

Yeah I fear doing a swap just for the eletrical part

And when you mean the SL is differentiable by no rear speaker.. you mean no rear DOOR speakers? cuz my SL has rear(under the back glass) speakers
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Old 01-03-2005, 02:09 AM   #15
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Default Re: slightly confused

back to the dohc on sohc bottom end-how much lower will that make my compression? i've got a '93 dohc from junkyard. what can i do to get that compression back?
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Old 01-03-2005, 06:47 PM   #16
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Default Re: slightly confused

it will give you about an 8.5 ish to 1 comp ratio

thats low for n/a, decking the head can help bring it back up though
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Old 01-03-2005, 07:22 PM   #17
tsrygley83
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Default Re: slightly confused

Even if you deck the head to the service limit, it will still have less than stock compression. Be better, and probably cheaper to just buy some DOHC pistons.
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Old 01-03-2005, 07:27 PM   #18
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Default Re: slightly confused

I always wondered, what about decking the block and the head to achieve a larger material amount, taken off?
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Old 01-03-2005, 07:32 PM   #19
tsrygley83
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Default Re: slightly confused

If you take more than a total of 0.050" out of either one of them (combined 0.050"), the timing chain tensioner won't really work any more, so it would be pointless.
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Old 01-04-2005, 12:36 PM   #20
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Default Re: slightly confused

Valves:

91-94 Valves; Flatfaced. Compatible with 91-98 cylinder heads.

95-98 Valves; Dished. Compatible with 91-98 cylinder heads.

91-93 had flat faced valves.
94+ had dished valves.
Now what difference does it make? The 91-93 can be used to raise the compression slightly on the 94+ model years. While the 94+ valves can be used on 91-93 years to lower compression slightly.
http://www.turbosaturns.net/forum/viewtopic.php?t=2211
so if i use a 93 dohc head w/ a 94 sohc bottom end, will that help w/ comp?
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