So you want 2 go Big block...Read this first!

true to a point, but if you are going big block, and disc, your going to have to change the hole stearing system. reguardless if it is new or not. need a 73 and up centger link, 73 idler and pitman arm. don't need to change those if you are doing SB

:)

Phil

no thats not 100% true. all you have to change is from the lower balljoint to the upper control arm. meaning you need the 73 upper control arm,spindle/rotor/caliper, and lower ball joint. the 73 centerlink, idler arm & pitman arm is not needed for a small block or a big block. the 67-72 have a drop down V-8 centerlink that fits a big block c-body pan in an A-body perfect. but yes the bushings and ball joint have to changed no matter what motor you put in if your going to a 73 disc brake set up.

I've built 2 Big Block A bodies and have never had to change anything but what Joe mentioned. The 6cyl center link worked just fine with a very small amount of oil pan massaging.
I went cheap on my Dart, and put a set of '72 Charger spindles, with the big disks and everything fits fine. Chager was $50, new quaters, 400 auto, need ed rear window. Ran this with a 68 440 from a $200 Satilite.
I also used the 6cyl torsion bars, But, they are a bit light for street use.
My whole Dart build I did for right around $2500, including the car. It was built in the mid to late '90's. The 440 came from a $200 junk yard satilite. The person drove it to the yard and proceeded to run the heck out of it in front of the Junk yard untill they blew it up, then pushed it in.
I opened the hood, looked around for a few seconds, closed the hood and gave the j/y $200 to bring it to my house. Got home that evening and brought home a distributor cap. Swapped caps an fired up the sweet running 440, that had split the cap in half.
Rear was given to me, 4:10 posi, 11" brakes. bought the Dart for $900, sold the /6 and tranny. Bought headers and Shumaker mounts, Shifter, and started assembling.
I did have to fork over $400 for slicks when I brought the car to the track, as the G70's just couldn't hold the power.