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1970 AMX/Javelin Stove Pipe |
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javamx1970
AMC Apprentice Joined: Apr/01/2015 Location: Florida Status: Offline Points: 169 |
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Posted: Mar/22/2017 at 6:39am |
Can someone tell me why one pipe has a hole in it, while the other one doesn't? Are they for different vehicles or something else? Thanks!
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amc'snjeep's
AMC Nut Joined: Sep/01/2009 Location: mitchellvill Ia Status: Offline Points: 324 |
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looks like for air tube for smog cars
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70 javelin bbb 390 4spd sold
70 amx 390 4 spd BBG Shadow mask 68 american 77 j20 401 66 American convertable 70 BBB AMX 390 Auto |
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ramblinrev
Moderator Group Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11472 |
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Yep. Manual shift cars have the hole in the pipe to clear the banjo bolt on the front-most cylinder.
There is also a slight height difference between a '70 390 pipe and a '70 304/360 pipe, so there are actually 4 different stove pipes for '70 V8's. |
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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javamx1970
AMC Apprentice Joined: Apr/01/2015 Location: Florida Status: Offline Points: 169 |
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Very much appreciate the info. Would you by chance know the height differences and which one pertains to which engine/transmission set up?
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ramblinrev
Moderator Group Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11472 |
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There's one part #, without hole, for 304/360 automatics. There's another for 304/360 manual trans And then the 390 has two different ones, and the 390s are a bit taller (maybe .2-.3"?)
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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ramblinrev
Moderator Group Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11472 |
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I should note, after checking the parts book:
There's one that fits late 68-70, 290/304/343/360 automatic, and one with the hole for manual shift. And then there's the late '68-70 390 ones, automatic, and one with the hole for 4-speed. So there are 4 slightly different stove pipes for those cars. 390 one is a bit taller because the 390 block is fractionally 'taller". |
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3312 |
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Wouldn't the 304 and 360 share the same deck height as the 70 390?
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1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
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Boris Badanov
AMC Addicted Joined: Dec/14/2013 Location: NH USA Status: Offline Points: 4209 |
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All 1970 and later V8s share the same deck height including the 1970 390.
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Gremlin Dreams
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Steve_P
AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3760 |
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it is not the block or deck height variation, it's the intake manifold height (and transmission) that changes the PN
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ramblinrev
Moderator Group Joined: Dec/28/2008 Location: Wisconsin Status: Offline Points: 11472 |
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Steve,
I realize my explanation doesn't quite add up, but the one you gave doesn't either- because the '70 360 4-barrel, for example, uses the exact same heads and intake as the '70 390 (not counting the Machine intake), yet they use different stove pipes. So where is the difference in height? Paul Edited by ramblinrev - Mar/31/2017 at 11:55am |
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74 Hornet Hatchback X twins (since 1977)
62 American Convertible (still worth the $50 I spent in 1973!) AMCRC #513, AMO #384 70 AMX 360 4-speed (since 1981) |
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