The rear wheel wells were widened and the leaf springs relocated to under the frame rails using a Mancini Racing kit. The exhaust is 2 1/2" into TTI 3" after turbo mufflers. Factory exhaust manifolds will be used, I have a set of HP ones.
Another big item was the 727 transmission. I had a 73 unit that had beefed up internals somewhat but came across a 74 trans from behind a 440 six pack that had better parts and decided to combine them.
So this 74 case has 12 sprag springs, 5 disc clutches, Red Eagles Racing Frictions and Kolene Black Steels, 4 pinion planetaries, hardened input and output shafts, heavy duty band, 4.2 ratio billet aluminum lever, shift kit, and a list of other stuff I have now forgotten. lol.
The engine I decided to use is a 1972 block, 440 magnum, I had all of the machine work done by RPM Racing Engines in Georgia, Vermont. It has a polished forged steel crank, LY light weight rods, new bearings, Speed Pro pistons, is bored 0.40 over, Comp Cam # 21-306-4 270/470 @50, new pushrods, dual springs from Comp with titanium retainers and 10* locks, stock valve train, heads are 346's that are fully ported, polished, gasket matched and relieved, Weiand Xcelorator single plane intake that has been powder coated by Phoenix Specialty Coatings in Greenville , Tennessee.
750 cfm Holley duel feed carb. Double row billet aluminum timing chain and gears, a mobile home 440 water pump with the extra large passages for increased cooling, March billet pulley's, Melling High volume oil pump and a Hemi 7 quart pan. We expect it to put out upwards of 485 HP and 470 ft lbs torque. Heh,heh.