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My 1967 AMC Marlin Thread

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67 Marlin View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Topic: My 1967 AMC Marlin Thread
    Posted: Oct/28/2023 at 7:54pm
Fuel consumption upgrade complete! Four photos below. Installed the custom Mark Whitener (Lightning Racing Carbs) 750 annular double pumper with an ME Wagner adjustable PCV valve. The souped up 390 intake was upgraded to the RPM Air Gap. It revs noticeably quicker over 4000, and thinking I might want to install Pypes race mufflers now! A one-inch spacer is the most that’ll fit under the hood with a three-inch air filter. Used a spacer with a PCV port so I could route the PCV under the primary barrels how I like to. The adjustable PCV along with all the adjustable bleeds and jets makes it easier to tune a sweet rich idle and as lean as you want for highway cruising. I use BLP stuff. The motor has just over 3,000 miles since it was rebuilt, it’s breaking in great!






Edited by 67 Marlin - Dec/31/2023 at 8:01pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote WARBED Quote  Post ReplyReply Direct Link To This Post Posted: Jun/24/2022 at 10:52am
The wheels make it look way more aggressive. very well done. Had Stockton do a few wheels for me. 14x6 72 Rallys to 15x10 had them on a 72 AMX and then on my 72 Matador. they do good work and fit snug but Dang it looked mean.
59 American 2dr S/W. 70 390 AMX. 70 232 javelin. Kelvinator fridge ice cold beer storage.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Jun/24/2022 at 8:50am
My Stockton custom AMC eight-slot wheels are on the Marlin and I like them! More photos below.


The centers were put in custom wheel hoops. The back are 15x8 with 4-1/4 backspacing. The front are 15x7 with 3-5/8 backspacing. Semi-gloss black powder coat. Shiny new center caps and trim rings. 255/60 tires in the rear and 235/60 in the front. Everything clears nice around the suspension and front disc brakes and mandrel exhaust system. All the steering and suspension parts except the front springs were replaced, and it has a rear sway bar, so the wider rubber enhanced the handling even more. The 14x5.5 OE wheels are also in powder coat but in boxes along with the OE wheel covers. I know black is getting to be really contempo these days but I like it on these wheels, and I think it'll compliment the red nicely...someday.





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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Jan/22/2022 at 1:00am
Originally posted by maximus7001 maximus7001 wrote:

What would be the difference between the 3191736 and 3191737 ?

Same thing. The casting number on the manifold itself is 3191736. The part number (as it was listed in the parts catalog) was 3191737. When the 390 came out, AMC made that manifold available as a dealer performance option for the 290 and 343 motors. A person could order the iron OE 390 manifold by its Group 19 catalog part number in the same way they could the aluminum high-rise R4B for the 290, 343, and 390 motors. Unlike the R4B, hood clearance wasn't a concern with the OE 390 manifold; it has bigger runners than the 290 and 343 manifold but it's no taller. Threads on the forum have stated the 390 manifold was worth 10 to 15HP when installed on the smaller motors even in stock form.

I machined my 390 manifold to have the open plenum; it was originally four holes like the OE manifold.


Edited by 67 Marlin - Dec/31/2023 at 7:56pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote maximus7001 Quote  Post ReplyReply Direct Link To This Post Posted: Jan/21/2022 at 11:15pm
Originally posted by 67 Marlin 67 Marlin wrote:

Dang that looks cool! The 1968/1969 390 intake (this one) is reputed to add 10 to 15HP to the 290 and 343 motors in stock form. The cast iron 390 intakes were even a Group 19 accessory for the smaller motors. The four holes are now a split plenum with a lowered center divider (a little lower than the 1970 Rebel Machine intake) and the edges under the carb going into the runners are radiused. This should help to maximize mid-range power, especially with the Jones cam. And, help a little up to 5500 which is all I'll need.


Top of the Group 19 catalog page with the intake on it. Note the part number (3191737) is different from the casting number (3191736).



What would be the difference between the 3191736 and 3191737 ?
1968 Javelin SST

1997 GMC Safari AWD

2001 Daewoo Nubira SX (Winnipeg only model)

1997 Honda Accord EX (Canadian Model)

Winnipeg, home of the Jets.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Jan/21/2022 at 7:36pm
Upgraded to an RPM Air Gap intake Smile The more spacers I added on the souped up 390 intake, the faster the car went. More plenum it is! I can still fit a one-inch spacer, too. And installed a new Robert Shaw thermostat. Updated the post to show the intake installed along with the new Mark Whitener 750 custom double pumper.




Edited by 67 Marlin - Dec/31/2023 at 7:51pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Aug/21/2021 at 6:22pm
Custom red oak arm rests! Four photos below. Been looking forward to this for years; all it took was learning a co-worker had a woodworking side-hustle, and three weeks later, here they are.


There's not a recessed edge for the OE metal trim piece to snap into because I wanted the full piece look, and I didn't think the trim was very attractive on the OE arm rests in the first place. And the rear rests do not have provisions for the OE ashtrays. The holes are filled with buttons bonded to a magnet stack that snaps to the mounting screws. 


The previous owner had SMS rejuvenate the door panels. The door panels are what gave me the idea for the wood arm rests in the first place. We tried to match up the simulated wood grain on the door panels and chose red oak for the arm rests and then stained them in satin walnut.


The compulsory comparison! My OE arm rests are back on the car until the door panels are installed.



Edited by 67 Marlin - Dec/31/2023 at 7:50pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Sep/20/2020 at 6:32pm
Installed an MSD distributor; I couldn't resist the customizing options and capability for a lot more initial timing than the OE Delco unit. I set the MSD with 22 degrees of initial timing and 14 of mechanical advance in by 2100. The distributor comes with a bunch of springs and a chart that tells you which ones bring in the mechanical advance the quickest. And five advance bushings ranging from 28 degrees down to 18 degrees. I wanted less mechanical advance than that, so I ordered a pair of 10 and 14-degree ones made by FBO Ignition. I used the 14-degree one.

I used MSD's Blaster 3 coil, a coil wire that you need to buy separately, 8.5mm plug wires, and swapped the plugs for some NGK V-Power FR5 7373 ones that I learned about on the forum.


Edited by 67 Marlin - Dec/31/2023 at 7:45pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Aug/31/2020 at 11:03pm
This was my favorite part of the process. Two photos below. The Marlin was ordered with a lot of cool stuff but not rear speakers. Designed custom custom speaker inserts with the 1960s AMC logo. The rear shelf was bleached from the sun but looks much nicer after cleaning it up and a few coats of SEM trim paint. I like it!


Spent a few hours replicating the logo and trying to get the colors and letters looking authentic. Talk about the perfect application for a circular logo. Secured them with a couple 1/4-inch bolts and lock nuts, and looking snazzy!



Edited by 67 Marlin - Dec/31/2023 at 7:41pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 67 Marlin Quote  Post ReplyReply Direct Link To This Post Posted: Aug/31/2020 at 10:43pm
Some fabrication and restoration wasn't technically difficult but a little tedious; worth it, though. Two photos below. I removed all the original insulating material in the process of cleaning, spraying, and then applying the Noico. I made a custom divider to go between the rear seat and trunk. Ordered $11 of 3-ply chipboard, used 1/4 of it, cut to fit, and wrapped the thing in sound deadener. I estimated the final cost of the divider was about $15 and two hours of time.


I was advised by a fellow Marlin owner to weave a couple layers of Gorilla Tape on the back of the sail panels before spraying them; that made them a bit sturdier when reinstalling.



Edited by 67 Marlin - Dec/31/2023 at 7:35pm
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