I want to swap out my 2bbl Carb for a 4bbl, I'am going to need to switch intake manifolds? Or are there one that will work on the manifold i have? the motor is a 1968 318'. also what is a Reliable affordable carb??


Thanks!
-Dylan

 

Dylan - recommendation is to change

If you look on craigslist you can find a lot of SB mopar manifolds for cheap. I really like SB 340 manifolds, they are well rounded. The provided the performance, have a choke riser and are not too much yet not too little. Seems they run about $100

You should be able to find a decent carb as well. Both Holley and Carter provide a Mopar bracket extension for the kick down and the throttle bracket (http://www.summitracing.com/search/?...y%2020-7&dds=1)

Hope this helps

 

So what manifolds are interchangeable with this .318 Motor? .340, .360 .383, .400, .440?

Man out in Arizona, nobody has Mopar parts on craigslist, at least in the phoenix area, lol all Chevy's

 

Here is a good read that should answer many of your questions.
http://www.allpar.com/mopar/4bbl.html

 

318/340/360 intake manifolds are interchangeable. The later one have a egr passage
still usable..

 

Hi everyone!

how upgrade 400 2bbl 1973 to high performance 400 4 bbl? Are necessary to change the intake manifold? Where can I buy a TQ carter 4 bbl carb? and the standart 4 bbl air filter? I must change anything else?

Sorry about my poor english, I'm brazilian

Thank you in advance

 

R -

Technically, no, you could get an 2 barrel to 4 barrel adapter plate, but you will be much better off with a new manifold.

Also. if you do go to a 4 barrel, be careful with the size (flow rate/cfm), meaning keep it fairly small, like around 600 cfm, unless you plan on doing other things to the motor.

Welcome aboard,

Archer

 

Dtwich90,I have a '73 340 manifold available.

Roneisele, also have a TQ that has been on the shelf for about 15 years, probably needs a rebuild,I will look for numbers if there is any interest in it. PM me for details.