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I received the pulley from sgbarracuda Today and things are starting to line up nicely thanks to everyone for your assistance it is appreciated!

The brackets I purchased for this has the triangular bracket offset tirwards the back of the car. My other 340 which has similar bracket offsets towards the front of the car. Can anyone here confirm which is correct?

Ok, I hooked up with SGbarracuda for a water pump pulley and ordered a new crank pulley from the source a body joe identified. New brackets due to arrive Monday. Thanks to all on this great site for your assistance, much appreciated.

i purchased the water pump new recently when I rebuilt the motor. The radiator was also purchased recently and matches the water pump. I have the 3 groove pulley on the crank which came on the motor, out of a 70 challenger with power steering and a/c. I think I need to order the pulleys...

Here is one

Thanks, that explains a lot as I have been gathering parts for years without noting these issues.

new brackets are on order but this shows what I’m looking at right now. Any guidance is appreciated.

Thanks, I’ll get some and post.

I’m assembling a bastard installation, engine was procured without anything else. looks like the pulley should be around 2-1/2” deep but would need to measure. The one I have is about 1-1/2” which isn’t deep enough.

I’ve got a pretty clean 1991 Honda Civic you could have cheap. Bare shell now and would be fun!

I wiped one in my 70:challenger 340. My Kid did me a favor and changed oil for me, forgot that It was flat tapped and used regular oil without zinc. 100 miles later the cam was gone along with a bunch of my money to repair.

Ok, I’ve got a 1970 dart I’ve been working on forever. Originally a slanty, putting 340, four speed into it. Motor is in place with the rest of drive train and the pulley I have for the water pump isn’t deep enough to line up with the alternator. There is only one belt, manual steering. Is...

The original T/A’s and AR Cuba’s ran destroked 340’s as part of the class requirement. I believe this is the crank dimensions used.

thanks

thanks

Any idea where I can get these? I am unable to see any details regarding actual dimensions on any adds where I have found what looks like it might work.

So you installed spooltype mounts from 318 and spaced the drivers side? Your picture sure looks like my motor, just that in the mounts provided the top and bottom are 3 1/2 " and teh block is 3" OC

I have a 70 dart which is being converted to a 340 4 speed car. Been working a long time and now assembling, ran into a problem I didnt expect. I installed a newer k frame with the new style, drop in, motor mount style. The motor mounts that came with the kframe dont fit my 1970 340 block...

I don't know about the rest of you out there but when I read "i've never owned a carb before" it just made me feel old!

Sorry, See where I misread now. FYI, it is my understanding that the LD4B is a 340 manifold and the D4B is for a 273. I am putting a 340 together and have a D4B, looking for a better fit for my 340, which is why I chimed in. Good luck!

I've got a D4B which I wold be interested in trading for the LD4B if interested, just let me know.

What he said here, I had the same thing happen and when I pulled the rotating assembly I ended up having to polish the pistons to remove the remnants of the cam!

Chevy de-stroked their engines because they wanted them to run like a 340!

Definitely a D4B, though I have had it on a 340 before as I used it to break in my T/A motor, was worried about the six pack for breaking it in. I have heard before that the cam can have a big effect on this and definitely need a pump gas capable unit. Any guidance on this is welcome since it...

Thanks for all the input, greatly appreciated. I doubt that I can get hands on the cash required to do a stroker, perhaps down the road. The manifold I have is a DB4 and I also have a Holley 750DP to go with it. I figure it should be touched to match the ports to he heads which we can do as...

We (my son and I) have been doing body work etc on our 70 swinger project for a little over a year and are getting to the point where it is time to start thinking motor. We have shortened a C body 8 3/4 for the rear with 3:921 sure grip and installed disks off a 73. We installed a hump for the...

When I set mine I set the engine at 10 degrees BTC and put a plug in the number wire, then turned the distributor until the plug sparked. This was good enough to get me running, then I set the engine for 36 total since that was where the engine performed best on the dino.

The cast rockers are supposed to be used with hardened shafts which are different than the shafts used with the standard "clamshell" rockers. Looks like you had a soft shaft which works fine for the clamshell rockers. The rockers can be bushed but need to be fitted to the proper shafts.

I was fortunate enough to buy a T/A challenger in 1975 and would not trade my 6 pack for any 4 barrel. I also don't see what the issue is with tuning these, my outboard carburators don't have metering plates so whats to tune there?