Senior Tech Team
Join Date: Mar 2002
Location: Westminster, MD
Re: 1978 Chevelle weight
Bob's right. My malibu is a 79 and is all steel except for the fiberglass hinged hood and a fiberglass front bumper. I have all the undercoating removed, no sound deadener, no heater or A/C, no back seat, crash bars removed from the doors. The car has a 12 gallon cell in place of the stock tank, aluminum radiator, aluminum intake and water pump, 10 point mild steel cage, two plastic racing seats, stock dash & steering column. The weight as it sits is 3515 lbs with the iron headed bbc/th400.
IMO, the only way to get a bbc in a Malibu down to 300 lbs is with a fiberglass front end, doors, trunk lid, lexan window, aluminum heads, light weight brakes front and rear, likely R&P steering in place of the cast iron manual steering box, etc.
A back half car will weigh less than a small tire car like mine, but your removing weight in the wrong place. I was speaking with a friend at US13 who races a back halved Malibu and his has 60% of the weight on the nose compared to 55% on mine. If your gonna take weight out, it needs to come out of the front, not the rear.
So while you may think 3500 lbs sounds heavy, it's what a full steel bodied Malibu weighs with an all iron bbc under the hood.