Lamborghini Countach
Engine data

Model
Displacement
Power
Torque
Compr. ratio
Fuel and induction systems
LP500 prototype
4,971 cc (303.3 cu in)
328 kW (446 PS; 440 hp)
448 N⋅m (330 lbf⋅ft) at 5,750 rpm
10.5:1
Carburetor
LP400
3,929 cc (239.8 cu in)
276 kW (375 PS; 370 hp)
361 N⋅m (266 lb⋅ft) at 5,000 rpm
10.5:1
Carburetor
LP400 S
3,929 cc (239.8 cu in)
261 kW (355 PS; 350 hp)
356 N⋅m (263 lb⋅ft) at 5,000 rpm
10.5:1
Carburetor
LP500 S
4,754 cc (290.1 cu in)
276 kW (375 PS; 370 hp)
418 N⋅m (308 lb⋅ft) at 4,500 rpm
9.2:1
Carburetor
LP500 Turbo S prototype
4,754 cc (290.1 cu in)
549 kW (746 PS; 736 hp)
876 N⋅m (646 lb⋅ft) at 4,500 rpm
N/A
Twin turbochargers, carburetor
5000 QV
5,167 cc (315.3 cu in)
335 kW (455 PS; 449 hp)
500 N⋅m (369 lb⋅ft) at 5,200 rpm
9.5:1
6X2 44 DCNF Weber carburetors
25th Anniversary
5,167 cc (315.3 cu in)
335 kW (455 PS; 449 hp)
500 N⋅m (369 lb⋅ft) at 5,200 rpm
9.5:1
6X2 44 DCNF Weber carburetors
Evoluzione prototype
5,167 cc (315.3 cu in)
335 kW (455 PS; 449 hp) at 7,000 rpm
N/A
9.5:1
Motronic fuel injection

Question: What was the displacement increase for the Lamborghini Countach engine models LP500s to the 5000 QV, give each of the engine's displacement power in cc?
Answer: In Lamborghini Countach engine development, the engine displacement increased to 4,754 cc in LP500S, and then to 5,167 cc in 5000 Quattrovalvole.