1978 j10 - JeepForum.com

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post #1 of 31 Old 12-24-2012, 05:05 AM Thread Starter
1978levisj10
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1978 j10

I am new to the Jeep line and always liked the old FSJ trucks so I recently purchased this 78 J10 Honcho Levis edition. Decoded the vin and it is supposed to be a 401 engine in it but crawled under and checked behind the motor mounts and found 343 cast-ted in the block. I read AMC only produced this engine in 1967-69 and it was rated at 290 hp. This is going to be a father and son project for me and my 12 year old. we are going to throw a lift under it and run at least 2 street tire size classes at the local mud bog when it is ready.

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post #2 of 31 Old 12-24-2012, 07:18 PM
olliehopnoodle
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Ah! A honcho. It just screams the late 70's and early 80's doesn't it? And a brow too.. I love the brow. Looks like a good starting point. If I ever get an old pickup it's going to be a honcho.

I have never heard of a 343. That just seems so weird. You saw this in big numbers near the motor mount? Is it based on the same engine as the 304, 360 and 401? Weird.

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post #3 of 31 Old 12-24-2012, 07:54 PM Thread Starter
1978levisj10
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The 343 is an AMC engine all the V8 blocks for the 290,304,343,360,390 and 401 all share the same block dimensions it's the bore and stroke that make the cubic inches. The 343 was offered in the amc cars only from 1967-69
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post #4 of 31 Old 12-25-2012, 10:14 AM Thread Starter
1978levisj10
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Yes the numbers are right behind the motor mount
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post #5 of 31 Old 12-27-2012, 07:57 AM
Eric1080
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po must have stole your 401
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post #6 of 31 Old 12-27-2012, 05:38 PM
azatrox
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Quote:
Originally Posted by Eric1080 View Post
po must have stole your 401
At least they threw in some Golden Eagle rims!
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post #7 of 31 Old 12-28-2012, 08:39 AM
Eric1080
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those rims are the best ones they made. jealous
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post #8 of 31 Old 12-30-2012, 09:06 PM Thread Starter
1978levisj10
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They have been spray painted recently by a previous owner
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post #9 of 31 Old 12-30-2012, 10:54 PM
Jeeper4life88
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Looks like a good truck though!

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post #10 of 31 Old 01-12-2013, 02:24 PM Thread Starter
1978levisj10
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well the timing was off reset it to top dead center on cylinder 1 and it fired right up. just need to get a timing light to check it
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post #11 of 31 Old 01-18-2013, 09:11 PM Thread Starter
1978levisj10
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post #12 of 31 Old 01-24-2013, 11:43 PM
Jeeper4life88
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Sweet sounds pretty good!

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post #13 of 31 Old 01-25-2013, 01:04 PM
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Nice

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post #14 of 31 Old 05-30-2015, 07:40 AM Thread Starter
1978levisj10
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Update truck has a 6 inch Rustys off-road lift installed last weekend and is sitting on a set of 38.5/16/16.5 swamper tsls
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post #15 of 31 Old 06-02-2015, 02:04 PM
Marn
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Ohan that looks awesome with the patina

-Andrew

Illegitimi Non Carborundum


The Beast Build Thread: Marns '73 Wagoneer Thread ----- The Camper Build Thread: Marns 1980 Jayco JayFinch6 Build Thread

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