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  #1  
Old 03-17-2009, 01:46 PM
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rare 401 - is this eally special?? i have no clue...

AMC AMX 360 390 401 RACE MOTOR DRAG RAMBLER HEADS BLOCK

Up for bid is a RARE orig. AMC 4 bolt main racing eng. This is probably one of the rarest AMC motors built for racing back in the early 70's by Traco. Ind.. These motors were mainly designed for drag racing, Trans-am series, and NASCAR. From the pics you can see there were never any casting numbers on block. The letters SP and F6 are engraved at the rear of the block in bellhousing area. The short block has been rebuilt some time ago with new rings, cam bearings, rod and main bearings but never ran. It has a 343 forged steel crank, 343 steel rods with JE200 pistons. The crank has been machined for late model torqueflight transmission. The bore is approx 4.15. The block has been decked and o-ringed with arp 1/2 head studs. Camshaft is an Erson with the numbers sss666 engraved in back, not sure of specs. It has a new Milodon gear drive with modified timing cover. The block has had internal oil mod done in lifter galley. The heads are apart with alot of porting and polish work, these are square port heads with 2.02 int 1.65 ex. valves, only have 6 intakes. Triple valve springs and pushrods 2 sets of roller rockers, Harland Sharp and Crane gold 1.6 included. The rotating assy. has been balanced with special harmonic balancer. Included is a Edelbrock Torker intake milled for decked block. I bought eng for Inderle injection system installed and do not need motor . I would probably use aluminum or dog leg heads if I was keeping motor. I'm guessing the motor is probably 13:1 compression the way it is set up. Motor has always been keeped indoors and covered. This would be neet for an AMC nostalgia build or museum piece.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=140307997064&fromMakeT rack=true&ssPageName=VIP:Watchlink:middle:us/
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  #2  
Old 03-17-2009, 01:54 PM
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They are referred to service replacement blocks, and YES they are uber-rare/$$$$.

Produced solely to qualify as a "stock" engine during the AMC trans-am racing years.
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  #3  
Old 03-17-2009, 02:28 PM
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Looks SWEET
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  #4  
Old 03-17-2009, 02:42 PM
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I don't know how rare the block is but it's nothing special in that by itself. It was just a blank block to drill to size. Oh, I could be wrong on this... MC probably knows the history better but I'm pretty sure those blocks did not come drilled for four bolts. Traco likely did that and added caps. Now, Traco didn't have that much of a positive rep with AMC either. The best AMC motors weren't built by Traco from what I read and it sounded like it was a falling out between Traco and AMC that actually led to their demise from TransAM success. I'd have to look back and see if they ever actually won anything with Traco motors.
I think that guy is full of bs... how is it suitable for a museum piece when he doesn't even know much about it (what the stroke/ci/compression is,etc.), it was built by Traco and he took the only real valuable piece of it the FI manifold/injection? Sounds to me like somebody just threw some parts together that have been laying around for 30 years. To top it off, what kind of idiot paints an AMC chevy orange, stuffs a torker on it and calls it a museum piece? see where I'm coming from?
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Last edited by Elliott : 03-17-2009 at 04:05 PM.
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  #5  
Old 03-17-2009, 03:43 PM
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Block looks red to me
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  #6  
Old 03-17-2009, 06:01 PM
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Quote:
Originally Posted by Elliott
I don't know how rare the block is but it's nothing special in that by itself. It was just a blank block to drill to size. Oh, I could be wrong on this... MC probably knows the history better but I'm pretty sure those blocks did not come drilled for four bolts. Traco likely did that and added caps. Now, Traco didn't have that much of a positive rep with AMC either. The best AMC motors weren't built by Traco from what I read and it sounded like it was a falling out between Traco and AMC that actually led to their demise from TransAM success. I'd have to look back and see if they ever actually won anything with Traco motors.
I think that guy is full of bs... how is it suitable for a museum piece when he doesn't even know much about it (what the stroke/ci/compression is,etc.), it was built by Traco and he took the only real valuable piece of it the FI manifold/injection? Sounds to me like somebody just threw some parts together that have been laying around for 30 years. To top it off, what kind of idiot paints an AMC chevy orange, stuffs a torker on it and calls it a museum piece? see where I'm coming from?

thanks Elliott, that's what i thought... sounded too good to be true... and with that torquer on top... just didn't make any sense... (it's nealy at 3000usd, though!!!)
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Old 03-17-2009, 06:06 PM
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Well in it's defense, although I think it is way over represented IMO, you don't come across a lot of factory set up racing blocks with the 4 bolt mains. Reed did AMC's TransAm cams, but I'm not sure about under Traco.
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  #8  
Old 03-17-2009, 06:09 PM
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what does he mean with 4 bolt???
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  #9  
Old 03-17-2009, 06:37 PM
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Each crankshaft main journal cap is held on with four bolts. IIRC, the service block had thicker main web like the 401 that permitted drilling two additional holes for the main caps.
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  #10  
Old 03-18-2009, 08:10 AM
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It is definately a special block. Traco ordered 24 blocks (I believe 24) that had thicker decks on them. The factory cast 4 bolt mains are rare ...rare. Between the heads and block I would say its worth about 25K. It is probly 1 of 4 or 5 that are left. My memory is getting a little foggy but this would be one of the first blocks they got becasue IIRC they used extra head bolts as well.
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  #11  
Old 03-18-2009, 09:20 AM
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401

Umm...so if someone put this motor in a Jeep, the car gods might be upset?


.
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Old 03-18-2009, 09:33 AM
Ristow Ristow is offline
 
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'specially if it were a ratty one....

i like the way you think.



Quote:
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Umm...so if someone put this motor in a Jeep, the car gods might be upset?.
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  #13  
Old 03-18-2009, 09:36 AM
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JERSEY JOE JERSEY JOE is offline
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TRACO

Besides Traco there was a guy in Lower New York State named Jacco Magiaciamo who did a lot with the Trams Am Javelins. He is the guy that built the motor in my AMX which was formerly raced in SCCA B Production back in 1970, 71 and 72. The guy that raced it was a high level AMC manager named Frank Lipare. I don't know which block it is since it's been in the car sitting for a very long time, but I know it has Venolia 12:1's and a Reed roller cam, and a factory Cross Ram intake.
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1985 CJ 7 AMC 401, CLARK 285SV 5 SPEED, DANA 60, DANA 44, RUBICON 4.5 LIFT. 37 KRAWLERS
1987 J-20 401 90% COMPLETED.
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  #14  
Old 03-18-2009, 09:42 AM
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I'll spring for one of the aluminum blocks.
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  #15  
Old 03-18-2009, 09:53 AM
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Indy

Yep, I've been looking for something to put my built 401 into so I could get a Indy block and heads for Scrambler.

Humm....87 J20 with 401, who wants a 36K mile 360?

I better just drive the 87 for a while and finish Gladiator before I take another Jeep truck apart. 67 & 87 would be mixed.
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  #16  
Old 03-18-2009, 10:40 AM
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AMC had aluminum blocks before Indy came along with theirs. Now, that would be a true museum piece. Gonna post some pics MC?
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  #17  
Old 03-19-2009, 08:52 AM
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the cylinder walls were thicker as well so they would cool a whole lot better. In T/A racing the Cu In was limited to 305 so this block was a thick walled 360 with a forged destroked crank to 305. I could be wrong but that is what I recall as the story. And those are just main girdles you can still buy those kits for about $800.


PS something else occured to me he says it has a 343 crank and rods and also mentions the custom intake for the different deck. I think this is a 343 not a 360 as the deck hieght was lower on the 343 but had the same bore as the 360. And also the square ports on the heads. Why someone would wreck one of these blocks to make it into a 343 is beyond me? They would have taken all the extra deck off to make the deck hieght right for the 343.
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Old 03-19-2009, 09:11 AM
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with those custom pistons he could get whatever compression height he wanted for the crank/block/deck height configuration. wouldn't be necessary to deck the block.
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  #19  
Old 03-22-2009, 08:35 PM
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Well it sold for 5600...I think that was the number. That was a screaming deal on that motor you couldnt build a common 401 for that.

As far as the 4 bolt main stud caps those are very rare only a handfull of sets were ever made. True you can buy new 4 bolt main caps but not like those puppers. That was one cool block there fellas
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