383man
Well-Known Member
My 63 weighs 3725 with over half a tank of gas and me not in it. Its about 3900 lbs with me in it. Best et is 10.76 at 125 and I use a very stock 8-3/4. But its mostly street driven and I dont race it on the street. I have raced it once or twice a year since around 2010 and so far the 8-3/4 has held up. Now that said back in the late 70's and early 80's I bracket raced a 66 Dart 4-speed car that I put a 340 in. I am guessing it weighed around 3200 lbs but never weighed it. Best it ever ran was 11.94 @ 113 and in 4 years of bracket racing it I broke about three 8-3/4 rears because it was a 4-speed and it had 4.56 gear. But when I let the clutch out the gas pedal is on the floor as I ran it hard. The car was much slower then my 63 but broke the 8-3/4 a few times where my 63 with an auto thats a faster and heavier car has not broke the rear yet. If you run your car hard as you should if your racing it and its a 4-speed I would definetly think about putting a Dana or Ford 9" in it. Good luck what ever you decide. Ron