How to tell what engine 232ci, 252ci, or 258ci - JeepForum.com
 
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post #1 of 13 Old 02-28-2013, 04:56 PM Thread Starter
i95suxs
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How to tell what engine 232ci, 252ci, or 258ci

Hi all, I'm a YJ veteran and i'm just recently switching to a CJ 6cly. I'm going to look at the jeep on saturday but i'm some what confused on what kind of engine it is. It's a 77 CJ-7. I decoded the VIN # and the 7th digit (E) shows it to be a 232ci BUT the 6th digit (H) doesn't add up because there is no H for GVW (only options for A and E). So that led me to presuming the seller made a typo and I switched the H and E. In this case it turns out to be a 304ci (V8? ....I dont think it is but i'll post pics for you guys to see). Lastly, the seller said it was a 252 6 cly. So basically I am really confused. Is it a 232, 252, or 258? I think it is a 232 but i could be wrong. If it is the 232ci, how are they compared to the 258 that i hear so many good things about? help is really appreciated for this CJ newbie!

PS: Go easy on the pics (unless you spot something completly bad that I didnt see). Shes not the pretiest thing in the world yet but I'm gonna clean her up to her former glory.

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Last edited by i95suxs; 02-28-2013 at 05:31 PM.
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post #2 of 13 Old 02-28-2013, 05:44 PM
CherryCj7
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The only way to tell the difference between a 232 and a 258 is by the number on the block. There is no visual difference that I am aware of. If the engine is original to the 1977 Jeep however it would be the 258. I personally have never heard of a 252 in a Jeep...
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post #3 of 13 Old 02-28-2013, 06:25 PM
hp_lovecraft
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It is the 4th digit you go by, and it looks like an "A" to me, which would be a 258 1-bbl (heavy version), which looks exactly like what you have.

Generally, there is no difference between the 232 and pre-1981 258. But there are lots of differences between the pre-1981, and 81+ 258. THere was major revision, and lots of parts do not interchange.
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post #4 of 13 Old 02-28-2013, 06:25 PM
timgr
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Maybe he's thinking of the 4.0L, aka 242? Or he's just confused? non-enthusiast owners are often clueless.

It's not a 4.0L. Wrong valve cover, and the 4.0L block does not accept a machanical fuel pump.

It looks like a 258 to me. The number stamped in the block above the fuel pump is "Y MM X DD" for year (9=76, 1=77), month, engine type E=232 1V, A=258 1V or C=258 2V and day. The stamping is hard to see, but it looks like "A" to me.

It's a pre-81 engine. Prestolite distributor is right for a '77.

Looks original and good, honest wear. Nothing wrong with it a little spit and polish won't fix.

1) '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps. 2) '82 J20 360/T18/NP208/3.73, KOs, 7600 GVWR 3) '75 CJ-6, 304/T15, PS, BFG KM2s, soft top 4) '95 VW Golf Sport 2000cc 2D
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post #5 of 13 Old 03-01-2013, 12:08 AM
BagusJeep
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Looks like a mid 70s 258. That Prestolite is a piece of manure.

Ditto on it looking original, even a few signs of maintenance. Looks like a good project under the hood, what else has she got?

BagusJeep lives in Bali.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
1951 Willys CJ3A/MB/M38 - Little Willy
1995 Cherokee 4.0 - CHEROKEE
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post #6 of 13 Old 03-01-2013, 12:48 AM Thread Starter
i95suxs
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Thanks for the help guys! I'll make sure to check on the side if its A or E when i get there. The owner says its got 87k original miles on the speedometer and 3sp trans (im assuming its the t-150). Here's my resto plans (any adjustments/advice welcome):
Rig:
NV3550 trans swap (im still on the fence if i want a 3spd lol thats my YJ high maintenance coming out)
Dana 300 swap
Rear axle swap (prob a dana 44 or 60)
Steering stabilizer
RE 4.5
2" shocks

Engine
Top end engine flush
Replace the air intake
Replace repair anything else it needs (a solid tune up carb..radiotor etc)

Exhaust
Borla cat back and headers

Wheels/Tires
BFG A/T KO 35"
Mickey Thompson classic lock

Exterior
Remove the tub..sand blast it
Give her a mature black paint up due for the mature woman she is lol
Bushwaker cut-out fenders

Interior
Nifty pro-line molded carpet- black
Depending on the seat conditions they'll be replaced...prob. yj style gray leather best top lol or whatever is similar to those...i think the racing seat stuff looks kinda guady (just my two cents)
New oem black dash from quadratec with the jeep logo

Sound system
Infinities in the dash
Pioneer head unit
2 subs 2ohm kicker with custom sub box for the rear.. prob downfiring
Sound bar
Kicker sub amp

Well those are the plans I've got so far. I'll keep yall updated to what engine it is on saturday. I'm really excited and nervous its a huge project! But its a labor of love
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post #7 of 13 Old 03-01-2013, 01:08 AM Thread Starter
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As for what else she's got, everything is pretty much stock. Which is perfect for what I want...ive seen so many jeeps posted for sale that i went to look at that were beaten and abused...poor things. So no lifts or big tires, and again im assuming its the t-150 since they said its a 3sp man. I figured stock, clean, original would be the best route to make a project out of. I'll post pics of the resto, im planning on doing most of the listed in the next few weeks
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post #8 of 13 Old 03-01-2013, 01:12 AM Thread Starter
i95suxs
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Oh, do yall have any suggestions concerning the pre-81 258 in what are good upgrades/improvements to make it better/healthier?
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post #9 of 13 Old 03-01-2013, 11:35 AM
timgr
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In terms of modifications, the Pre-81 and Post-80 engines are the mostly the same. The later engines were modified to reduce engine weight, including different manifolds, lighter block casting, fewer crankshaft counterweights, and the horrible plastic valve cover.

If you search, you'll find plenty about hopping up the 258. There's so much to cover here, I don't know where to start.

1) '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps. 2) '82 J20 360/T18/NP208/3.73, KOs, 7600 GVWR 3) '75 CJ-6, 304/T15, PS, BFG KM2s, soft top 4) '95 VW Golf Sport 2000cc 2D
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post #10 of 13 Old 03-01-2013, 01:26 PM
Renegade82
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Here I thought I waz gonna learn me sumtin about a mysterious new Jeep engine, the 252. (a 258 w/ bad rings)

The end of a defining era.... JEEP R.I.P. 1941-1986
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post #11 of 13 Old 03-01-2013, 02:33 PM Thread Starter
i95suxs
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Jeep did make a 252 between the late 60s and 72. Something about in mexico
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post #12 of 13 Old 03-01-2013, 03:54 PM
timgr
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VAM engines (Vehiculos Automores Mexicanos). 282, not 252, IIRC. A bored-out 258, prior to the 4.0L days.

1) '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps. 2) '82 J20 360/T18/NP208/3.73, KOs, 7600 GVWR 3) '75 CJ-6, 304/T15, PS, BFG KM2s, soft top 4) '95 VW Golf Sport 2000cc 2D
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post #13 of 13 Old 03-01-2013, 06:55 PM
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Quote:
Originally Posted by i95suxs
Oh, do yall have any suggestions concerning the pre-81 258 in what are good upgrades/improvements to make it better/healthier?
Get rid of the prestolite distributor. HEI would be the best bet in your case.


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