340 eng in a 65'GT?

[oldmopardude]

I'm about ready to Install a drivetrain in my 65' dart GT. it is and will be a four speed car. 340 or 273? Ther are obvious issues to do so, please Look at my post in members restorations. any advice would be appreciated!

 

[Drg racr]

If you drive it every day, I'd go with the 273, mild cam, 500cfm 4-bbl, headers and a 3.23 gear. A buddy did that in a similar car he got around 18MPG, a little better on the highway.
If you want more power, go with the 340.

 

[LS-300]

If your goal is to restore it back to original then the 273 should be used as the 340 didn't come out until 1968.

 

[65 Dartman]

My 65 GT convertible was originally a slant/904. I've got a couple of 340s (and slants) so I decided to go with one of the 340s and 904. I've got everything required for a V8 swap - gas pedal assembly, dropped center link, 8.75, etc etc. When and if I get tired of the 340, I'll have a built slant to go back in except it will be running triple Webers. Years ago I had a d69 Charger and my wife always joked that I had a velcro-mounted engine in it - had everything from a 318 to a 440 in it.. Here's the triple Weber set-up for a slant

 

[oldmopardude]

I/ve resisted the 340 because of the need to re-enforce the crossmember, and I don't care for headers.Not to mention as you said the 273 get much better mileage. I will be travelling a good deal with it, and Installing vintage A/C. when I'm done.

 

[oldmopardude]

There's some money there, a Very valuable piece! I would like to see the linkage setup if you do that !

 

[65 Dartman]

There's some money there, a Very valuable piece! I would like to see the linkage setup if you do that !

If I end up with this set-up in my GT, I'll be sure to take plenty of pics. Slowly working on my 65 Dart wagon right now. For it's powerplant it will be getting a slant with a different style of exotic induction!

 

[pyrojim]

I'd like to see the progress on the wagon. I'm keeping my eyes open for an early wagon as my next project. I too was thinking of a mild build slanty!!!

 

[oldmopardude]

The 65' dart wagons were really fun to drive, and they look so different today. If I spot one I may have to grab it! Thanks for all the advice!

 

[pishta]

273 and logs. Don't mess with headers....if you want headers go with the slant.

 

[Gib Warnick]

273 and logs. Don't mess with headers....if you want headers go with the slant.

The 340 with a 4 speed brings alot of hassles- larger bellhousing for larger clutch- problems with clutch Z bar....
Use stock exhaust with Commando repro exhaust- awesome tone....

 

[pyrojim]

I'm about ready to Install a drivetrain in my 65' dart GT. it is and will be a four speed car. 340 or 273? Ther are obvious issues to do so, please Look at my post in members restorations. any advice would be appreciated!

I'm putting a 66 dart convertible together. Went with a 318 mild cam, edelbrock intake. .030 over with 360 heads. 600 AVS. Gonna dress it like the 273 charger. Got the valve covers and air cleaner on line. Kinda stealthy!!

 

[66340SEDAN]

I dropped a 340 4-speed in my 66 and it was easy, larger bell was no problem and all parts to change over the bigger clutch set-up is available through Brewers Performance.

The OP stated that the "frame or crossmember" needed to be beefed up? Is It rusty? If not, then there is plenty of strength for a 340, the frame is the same on the early-a cars.