Lamborghini V12 - Specifications

Specifications

engine configuration — 3.5 & 4.0

60° V12 engine; wet sump lubrication system

engine configuration — 6.2 & 6.5

60° V12 engine; dry sump lubrication system

engine displacement etc.

3.5: 3,465 cubic centimetres (211.4 cu in); bore x stroke: 77.0 by 62.0 millimetres (3.03 in × 2.44 in) (stroke ratio: 1.24:1 - 'oversquare/short-stroke engine'); 288.7 cc per cylinder

4.0: 3,929 cubic centimetres (239.8 cu in)

6.2: 6,192 cubic centimetres (377.9 cu in); bore x stroke: 87.0 by 86.8 millimetres (3.43 in × 3.42 in) (stroke ratio: 1.00:1 - 'square engine'); 516.0 cc per cylinder; compression ratio: 11.6:1

6.5: 6,496 cubic centimetres (396.4 cu in); bore x stroke: 88.0 by 89.0 millimetres (3.46 in × 3.50 in) (stroke ratio: 0.99:1 - 'square engine'); 541.3 cc per cylinder; compression ratio: 11.8:1

cylinder block & crankcase

cast aluminium alloy; pressed-in cylinder liners

cylinder heads & valvetrain — 3.5 & 4.0

cast aluminium alloy; two valves per cylinder, 24 valves total, 2x chain-driven double overhead camshaft (2xDOHC - two overhead camshafts per cylinder bank - 'quad cam')

cylinder heads & valvetrain — 6.2 & 6.5

cast aluminium alloy; four valves per cylinder, 48 valves total, 2x chain-driven double overhead camshaft (2xDOHC - two overhead camshafts per cylinder bank - 'quad cam')

aspiration, fuel system & ignition system — 3.5

six twin-barrel side-draught Weber 40 DCOE 2 carburettors; one or two ignition distributors

aspiration, fuel system & ignition system — 4.0

six twin-barrel down-draught carburettors; one or two ignition distributors

aspiration, fuel system & ignition system — 6.2 & 6.5

two air filters, four cast alloy throttle bodies each with Magneti Marelli electronically controlled 'drive by wire' throttle butterfly valves, cast magnesium alloy intake manifold; two linked common rail fuel distributor rails, electronic sequential multi-point indirect fuel injection with intake manifold-sited fuel injectors; centrally positioned spark plugs, mapped direct ignition with 12 individual direct-acting single spark coils

exhaust system — 6.2 & 6.5

two 3-branch exhaust manifolds per cylinder bank, connected to dual-inlet catalytic converters, heated oxygen (lambda) sensors monitoring pre- and post-catalyst exhaust gasses

power and torque outputs and applications

3.5: 284 metric horsepower (209 kW; 280 bhp) @ 6,500 rpm; 325 newton metres (240 lbf·ft) @ 4,500 rpm — Lamborghini 350GT

3.5: 324 metric horsepower (238 kW; 320 bhp) @ 7,000 rpm — Lamborghini 350GT Veloce

4.0:

6.2: 580 metric horsepower (427 kW; 572 bhp) @ 7,500 rpm; 650 newton metres (479 lbf·ft) @ 5,500 rpm —

6.5: 640 metric horsepower (471 kW; 631 bhp) @ 7,500 rpm; 660 newton metres (487 lbf·ft) @ 5,200 rpm — Lamborghini Murciélago LP 640 Coupé and Roadster

6.5: 650 metric horsepower (478 kW; 641 bhp) — Lamborghini Reventón and Murciélago LP 650-4 Roadster

reference

6.5: 670 metric horsepower (493 kW; 661 bhp) @ 8,000 rpm; 660 newton metres (487 lbf·ft) @ 6,500 rpm — Lamborghini Murciélago LP 670-4 SuperVeloce