This Miura engine is similar to the one used by the Espada. The stock exhaust headers are of a different design and this example had some mild cylinder head porting done, but otherwise was basically stock. The cam timing was set at non-stock values as well. The power is good, but not quite up to the alleged factory figures of 350-385 HP. An interesting side note is that, according to Bob Wallace, the Miura engines were really never tested by the Lamborghini factory due to the lack of a local dyno that would rotate counter-clockwise!
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Power: 325-hp @ 7,000-rpm, 280 lb-ft of torque @ 5,100-rpm
Type: V-12, 4.0 liter, Muira P400 S
Compression Ratio: 10.4:1
Heads: mild porting
Induction: Weber 40 IDL 3C
Ignition: points/ coils/ distributors