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What do you think guys.... 71 AMC Javelin....

Started by Brads70, August 03, 2017, 04:14:15 PM

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RUNCHARGER

That's great. Sometimes it's hard to connect rare parts with the guy that needs them.
Sheldon

blown motor

@Brads70 I'll be there Sunday with the parts I have here. Late morning I expect. I've had them so long I forget what they are.
Who has more fun than people!
68 Charger R/T    74 Challenger Rallye 
12 Challenger RT Classic    15 Challenger SXT
79 Macho Power Wagon clone    17 Ram Rebel

Brads70

Finally got a slow day business wise, weather was perfect so I fired up the javelin and moved it into the drive way, Installed new front rotors. Man were they pricey, only one manufacturer making them I was told?  Previous owner installed new calipers, pads and flex lines but left the rotted junk rotors?WHY?  Ran out of money I guess?  So finished that up, gave her a bath as it was pretty dirty from siting all winter. Still has BFG T/A's on the back so I couldn't help myself and proceeded to do a so so burnout. Easy to do with those tires  ::) Nice smoke show, then it stalled, fired right up again but heard this funny noise. I think the transmission let go! Sounds like squirrels lefts nuts in the bell-housing  :rofl:  Now I'm laughing because  it's going to be replaced with a T56 6 speed asap. I have no idea what automatic it is , when I bought it the seller was going on about it has a rare desirable transmission?  :notsure:, something else for the scrap guy now!  :haha: Good to find all the weak spots right away I figure!  :wrenching:


RUNCHARGER

Sheldon

Chryco Psycho

Don't scrap the trans , someone will still pay you a grand or more for it !

IRON MAN

#335
Brad, The 1971 AMC Javelin 360 V8 came with a manual transmission or a Borg Warner M12 automatic transmission. It is basically a Ford FMX a/t inside. Here is a picture of my 68 AMX 390V8 M12 a/t. Alum BH, cast iron center case, and alum tail housing.  An article in Car Craft magazine stated the M12 only uses 25 hp, TH400 uses 44 hp,  the Chrysler 727 uses 45 hp. and the Ford C6 uses 55-60 hp.

Brads70

Quote from: IRON MAN on July 25, 2019, 09:52:09 AM
Brad, The 1971 AMC Javelin 360 V8 came with a manual transmission or a Borg Warner M12 automatic transmission. It is basically a Ford FMX a/t inside. Here is a picture of my 68 AMX 390V8 M12 a/t. Alum BH, cast iron center case, and alum tail housing.  An article in Car Craft magazine stated the M12 only uses 25 hp, TH400 uses 44 hp,  the Chrysler 727 uses 45 hp. and the Ford C6 uses 55-60 hp.

Cool good to know ! Thanks! Is there any value to them?  :notsure:




Brads70

#337
Spent the afternoon at my buddys shop ( he builds circle track engines) finishing tearing down the 401 from the parts car. Wow did I ever luck out with this one. Engine is like new inside, bearings have the amc logo on them. Just going to ball hone/re-ring and new bearings and assemble with a new camshaft and a valve job. Spent most of the time bead blasting parts and wire wheeling the block getting ready for paint.Should be a relatively cheap engine ?  Now researching how long Lunati will take to make me a hyd roller..... :tool:

anlauto

Don't you love it when something goes in your favor for a change :woohoo:
I've taught you everything you know....but I haven't taught you everything I know....
Check out my web site ....  Alan Gallant Automotive Restoration

Brads70

Always a fun day when you order all the parts to rebuild the engine!  Here is the custom Hyd roller cam specs Bullet cams is making for me.

Intake

225 @.050"

.330" lobe lift, .528" with 1.6 rocker

278 duration @.006"



Exhaust

230 @.050"

.335" lobe lift, .536" with 1.6 rocker

285 duration @.006"



113 lobe separation

108 intake centerline

RUNCHARGER

Sheldon


Chryco Psycho

Can't wait to see how well that cam will work for you !

Brads70

Well I started stripping it down, found someone had "glued " sheet metal on the inner rocker panels.
What a moron! Literally pried it off with a putty knife.  :looney: But they had installed new rocker panels? Like talk about half a job?  :drunk:
I sat back and looked at the mess for awhile..... measured a few things , came up with a plan,then went to the steel store.
I figured a 1 1/2" x 3" would fit perfectly in there and make it twice as strong as original. I was wanting to make up some subframe connectors anyhow.  As luck/divine intervention would have it they had exactly what I wanted at the steel supply  and in .062 " wall stock, so it wasn't too heavy , still thicker than original and I got the last 2 pieces they had in stock.  :D  I drilled holes from the bottom of the rocker panel to plug weld to the square tubing and cut along the floor to fit. Most of the floor I welded right back onto the new tubing. It's like it was made for it. I just need to bend up some sheet metal on a 45 deg angle to weld to the inner body and pinch weld that the rocker sills cover. When I'm done it shouldn't be visible that it's even in there.  Me not being able to leave well enough alone then cut out under the back seat to get into the structure behind the leaf spring mounts . I'm not gonna lie , these cars are not made from very thick material. . So I made up some pieces out of .073" plate and welded them into the " torque box" again making it at least twice as strong as the original design. I thought about making bolt in Mopar spring hangers but didn't. . Tomorrow maybe I'll tackle the front area to tie in the front frame to my new frame rails . Shouldn't be too hard to do.
Funny at first I was sort of bumed out   with the mess but as it turns out I think even if it was mint in this area I'd still cut it out to do this mod but I wouldn't have thought about it if I didn't have to do something.. Should make a big difference in torsional rigidity!  :bradsthumb:  It WILL be better when I've had my way with it!  Can't wait to dive into the front suspension!

Chryco Psycho


RUNCHARGER

Sheldon