It's all basic .030 factory block, filled and girdled. Eagle rotating 4.15 crank. Can't remember if they are Ross or JE domed pistons 13-1 or so. It was measured out to 12.9 with 84cc Edelbrock heads and now has OOTB 72cc Indy -1 so maybe some of you mathematicians can help me out with the guesstimate here. Milodon gear drive, I have a Jesel belt for it but won't install it until I get the heads ported with a different cam. It's a Cam Motion I believe, .690-.632 lift, T&D rockers, Comp lifters that get rebuilt every 250-300 passes, Smith Bros. 5/16 pushrods. Indy 4500 intake, OOTB 1050 dominator on top of a POS TS-5 electric stop. Holley Volumax dual -8 inlet, -6 return, -10 to a BG 4-port, -6 to carb, big 7-8 gallon fuel cell mounted at the front bumper. Single hose from the dragster pan, swinging, two hose pickup, to a Peterson, huge, 2-quart filter adaptor with a Wix Racing and now K&N wrench-off filter. Tired Mezier water pump, Moroso Vac. pump no relief. MSD 7AL-3, crank triggered, locked out at 34. Custom, equal length, 2-1/8 to 2-1/4 to 2-3/8 to 4" merge. Mike's glide with a 180 1st, Hughes 8", 6500 stall. Fab9, 4.29 ratio, 33X10.5W M/T's. and bada$$ Lamb brakes. The car weighs right at 2,600 with me in it so it has 190lb. weight bar at the back of the trunk and an extra 47lb. XS Power battery to make the Super Street 2,800lb. min. M/S tube, 4-link, strut. I hope that answers everything for ya. Nice Challenger!!!