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  #1  
Old 10-20-2013, 06:37 PM
kazam kazam is offline
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Join Date: May 24, 2007
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'71/'72 360 rebuild questions --stroker

Greetings,

I have a stock 360 motor (in a J2000) that I'd like to rebuild if it
looks nice upon disassembly.

Has anyone done a rebuild on one of these with an aftermarket (maybe a Stroker) kit?

The air injection on mine has been deleted; I don't plan on putting it back, for simplicty.

Thanks
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  #2  
Old 10-21-2013, 12:02 AM
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mud89 mud89 is offline
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71 ? so you have one o the first j2000 with a 360. Do you have a VIN and production date (door jamb sticker) ?

You'll find rebuild kit by maddog (ebay) or others, but unlike the later 6cyl 4.0L, no vendors for a 360 stroker kit. Some have stroked a 360 with a 401 crankshaft though, you should find a post here
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Last edited by mud89 : 10-21-2013 at 12:04 AM.
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  #3  
Old 10-25-2013, 09:07 PM
kazam kazam is offline
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From the Data Plate:

J2M241WN13054

The engine # is not in front of me right now;
last I checked it listed as a '71 made late in the year...
'N' ...

Thanks for the input.

Cheers.
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  #4  
Old 10-26-2013, 11:18 PM
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Carnuck Carnuck is offline
 
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Check the crank isn't the flat flange. AMC changed the crank in '72 for 727/9XX trans.
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  #5  
Old 10-27-2013, 01:44 PM
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mud89 mud89 is offline
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It's an early '72 built in 1971
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  #6  
Old 10-27-2013, 02:03 PM
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FSJunkie FSJunkie is offline
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Early 1971 heads are high compression (291c). I think it was around 9.2.

Late 1971 are standard 8.5 compression heads.

The actual performance difference between them is nil.
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  #7  
Old 10-27-2013, 02:23 PM
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Mike D Mike D is offline
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so a 77 is low compression too ...?
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  #8  
Old 10-27-2013, 03:31 PM
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Quote:
Originally Posted by Mike D
so a 77 is low compression too ...?
Somewhere in the 8.25-8.5 range, yes. 1977 will also have 1.5 ratio bridged rockers.
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  #9  
Old 10-27-2013, 05:57 PM
Ristow Ristow is offline
 
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they're 1.6. i have yet to see 1.5 rockers on an AMC.
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  #10  
Old 10-27-2013, 07:04 PM
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Mike D Mike D is offline
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dont know what that means ..
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64 Wagoneer 283 SBC
50 truck
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Please, if you believe in the power of prayer, God and Jesus Christ... I beg you add my relationship with Heather Boyd to be reconciled to a new, stronger than ever, wonderful marriage ... to your prayer list and remember us daily.


Addendum:
And now that im getting Divorced .. i want to work on it , but no one else does -- ^ -- Heather, please leave your affair with Josh Smith and come back to the father of your children
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  #11  
Old 10-27-2013, 07:49 PM
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I always thought the stud rockers were 1.6 and the bridged were 1.5. If you look at lobe lift specifications, they increased lobe lift the same time they changed over the rockers, but the 1.5 ratio brings valve liftto the same specification as before.
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  #12  
Old 10-27-2013, 08:40 PM
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Here's the difference. '71 AMC cars (AMXs and Javelins at least) got 10.5:1 compression option. (photo isn't mine. It's "borrowed")

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  #13  
Old 10-28-2013, 04:49 AM
Ristow Ristow is offline
 
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Quote:
Originally Posted by FSJunkie
I always thought the stud rockers were 1.6 and the bridged were 1.5. If you look at lobe lift specifications, they increased lobe lift the same time they changed over the rockers, but the 1.5 ratio brings valve liftto the same specification as before.

they were all 1.6. but i believe there is a listing from amc for 1.5 in one or two years,but i've never seen them or had someone say they had either. maybe some emissions application for california or something. i'll see if i can find it.

the cam changes were more likely for epa regs.
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Ristows right.................again,




Quote:
Originally Posted by Fasts79Chief
... like the little 'you know what's' that you are.




Quote:
Originally Posted by Fasts79Chief
I LOVE how Ristow has stolen my comment about him ... "Quoted" it ... and made himself famous for being an ***hole to people. Hahahahahahahahahha!


→ Where the kids hang out...

fsjbuilder.org come for the mindless chat,stay for the hand drawn emoticons.

It's like you're unraveling a big cable-knit sweater that someone keeps knitting...and knitting...and knitting...and knitting...
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