"special high performance" 360?

[mopardrt]

I recently bought a 74 Dart Sport, because it ain't worth nothing. It'll never see the street until it looks like a 70-71 Duster. It's just going to be a hot rod.
On second thought, it's a good thing they made those dogs, I can chop up the Dart way I want, and I'm not ruining it's value. It may even increase it, even though it's a clone.

hardly increase the value sir, still some dusters running around a fake duster will be worth just that, a fake duster, and remember the DOGS you so simply put it, are pretty much becoming harder and harder to come by and the price is rising, the dart sport is just as muscle as a duster any day, The late model darts are getting harder to find

 

[Cudaroy]

Well, it isn't a HP thing..........

Could be they just put the mold # in front, could be third time was the charm.........


No "special" blocks, just packages.......

AND, your motor, from the date you posted, is a 76......

3418496 360 LA 1971-74

Not according to stockmopar.com list of casting numbers.......71-74

 

[dodgetkboy78]

Read the next post, wrong dude, there's like a gazillion people posting numbers in this thread........

And another BTW............

If you would simply look on the other side of the block, it would give you the exact date, and shift it was made............ Not justg a 71-74..........

 

[Tarr]

That is because Mopar didn't follow a strict set of rules that they ever published. I was told that in 72-73 even the 340's had 360 marks on the sides of the blocks. Not so! I have a 340 out of a 72 Duster that has the numbers 2780930-340-3 followed by a large 4. I bought the car from a guy that had just had his 5th child a year before. He had bought it new then got married. I bought it 81 and the motor was smoking, the drivers seat you could see the floor thru the seat. He had literally drove it into the ground. The brakes didn't even work and the batt was shot.
I put in a set of rings, bearing and timing chain and a 284 cam then put it in a 78 Volare I bought new. I beat several 350 Chibby's (Nova's and Camano’s) in a car that weighed almost 4000 lbs. It was a Volare Premier (the luxury model)'
I still remember the look on one guys face whose dad owned a gas station and they had just built him a HOT new high compression 350.
I still had the low compression 340 with hookers and a 284 crane cam and 3.23 gears.