
11-19-2007, 08:45 PM
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Jeep J10
I have a buddy that just inherited a J10 but he can't figure out what engine he has in it. He doesn't think its the 360 because theres too much room in the engine bay. Is there any way to find out what he has in it? Thanks
LR
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11-19-2007, 09:02 PM
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Re: Jeep J10
Assuming it's a V-8......304 maybe????
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11-20-2007, 06:49 PM
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Real Name: Terry Mason
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Location: Virginia Beach VA
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Re: Jeep J10
Here's a J10 bay with a 401 engine:
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11-20-2007, 06:51 PM
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Real Name: Terry Mason
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Re: Jeep J10
another J10 with a 360
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11-20-2007, 06:54 PM
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Real Name: Terry Mason
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Re: Jeep J10
not sure how much thos photos will help, but I figured I'd try.
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11-20-2007, 09:17 PM
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Re: Jeep J10
I haven't seen the truck yet so I don't even know what it looks like, haha. But he said he thinks its either a 304 or......he said that they made a 258 v8?? I haven't ever heard of it so I dont know. But thanks for the help
LR
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11-20-2007, 10:11 PM
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Re: Jeep J10
258 4.2L straight six - the same that went into the CJs. Those are pretty common
Take a look at cayjay's site, there is some good info there
http://cayjay.jeepz.com/general/engine1.htm
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11-20-2007, 10:18 PM
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Re: Jeep J10
Yeah I know that they made a 258 straight 6 that went into the CJ's but my buddy swayers that they made a 258 v8
LR
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11-21-2007, 08:13 AM
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Re: Jeep J10
Came across this:
http://www.offroaders.com/tech/jeep/...tory-guide.htm
Might not help, but it's interesting.
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The only terrorists I fear reside in Washington, DC.
'03 TJ - 31x10 Trailcutter M/T's, 9000# Winch, Hi-Lift Jack, TopFive roof rack, only vehicle I own, takes me everywhere
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11-21-2007, 12:38 PM
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Re: Jeep J10
Externally the 304 360 and 401 v8 looks pretty much the same. Pretty sure they had the displacement cast into the block or intake in large bold numbers.

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01-21-2008, 08:31 PM
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Re: Jeep J10
I've seen more 360/auto's with quadratrac close to where I live than any other kind, I have yet to find another 258/4spd. I'am still amazed at the power this engine puts out.
Last edited by carriss; 01-21-2008 at 08:37 PM.
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02-12-2008, 01:48 PM
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Re: Jeep J10
304 360 and 401 v8's all share the same accessory drive and I think externally the blocks are pretty much the same.
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04-13-2008, 02:21 PM
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Re: Jeep J10
He also wants to know if there is anyplace he can find a vacuum diagram so he can get his quadratrac figured out. He does have the lockers but they don't work all the time and he wants to get it figured out so we can go wheelin.
LR
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06-14-2008, 06:23 PM
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Real Name: leo
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Re: Jeep J10
the harmonic balancer is different on the 304,360 401.look it up and that is the easy way to find out what you have .providing it,s original.
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