A body weight ?

You have a lawnmower engine under the hood ? good for you ! My 1972 Scamp 318,904.8 1/4", power steering & brakes with air, bench seat weighs 3210 lbs . Car now has 383, 727, 9", 6 pt. roll bar and 3" prop shaft after power steer/brakes,A/C, radio have been deleted weighs 3290 lbs . Not bad