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Ok thanks guys I talked to the salesman and he said it was an externally balanced rotating assembly? The 340 is a 69 block according to the casting.stock other than a slight cam. I bought the car a few years back dont know too much about the engine other than that

Maybe some one can help me out here. I’m removing a 340 from my duster and installing a blueprint engines 408 stroker. The car currently has a built 904 trans.What torque convertor do I use? Can I use the current one or do I need a different torque due to it being an externally balanced rotating...

Just installed the sniper efi and hyper spark distributor. What should my timing be set at? I’ve researched a few sites and videos they all say it should be set at 15* I’ve set mine to that and it pings and back fires WOT timing is set to 36* any one install this set up. What should I be using...

Ok I shall check the linkage to see if that’s the issue thanks for the help. In trying to solve this issue

Yup I checked it properly with car running And in park with engine up to normal operating temp.

Yes that is correct no reverse also. I also changed the trans filter and the gasket added new oil and still no movement so I pulled the cooler lines and I have no oil flow? Tourque converter or pump I’m guessing but not sure

The fluid level is full on the dipstick

I have a 1972 duster with a 340 bolted to a 904 transmission drove the car to get exhaust work done and drove the car back with no issues parked the car now the transmission has no gears. the fluid is full and no leaks and doesn't seem to smell burnt. need some suggestions on what to check there...

When I go to start my stock 340 it fires up then dies instantly. So far I’ve changed dist. Cap,rotor, pick up coil,plug wires,electronic box,voltage regulator. If I ride the starter car will start sometimes and then it begins to miss fire on the passenger side. Not sure what to look for here...

Thanks I will at least have somewhere to start now kinda new to this forum thing but I have another question would a bad wiper switch cause the voltage to spike and make a pinging noise under the dash.the wipers quit and I just replaced the motor

I have a 1972 duster when I go to start the car I have no power anywhere no lights ect. Try it again and sometimes it will start also there is a clicking noise from the dash when it is running and the voltage gauge spikes and the lights flicker. Not sure if these problems are related. If some...

Ok I'm new to this so bear with me I have a 1972 duster with a 340. I bought the car which was restored six years ago but now have a rear transmission seal leak. So I went to change it and the seal listed is too big compared to the one I pulled out. How can I find out what this transmission came...

I have a 340 in a 1972 duster with u stamped heads.IHave heard of the x head and j heads but never U stamped heads?

My apologies this is new to me it stalls when the engine is warm at a idle example at a light and it also does the surging at Around 60 mph. When I floor it it also bogs it's equipped with a edlebrock carb, stock intakealso what should the timing be set to it's a 1972 340 4bbl.

I have a 340 with issues idling and a bog when the car is under acceleration and it also seems to surge

Hi everyone I'm a mopar fan from Canada . This is new to me