308 QV 3.5-liter Stage 1

Designed as a “sleeper” engine, this 308QV retains the stock Bosch CIS fuel injection and Marelli Digiplex ignition systems.
Built with special Razzo Rosso 85mm steel sleeves/forged pistons and a specially modified 355 77mm stroke crankshaft, this engine displaces 3.5 liters. The cylinder heads were suitably modified for more flow with oversize intake valves and manifold matching. Camshaft selection was critical and a CIS friendly grind was picked after considerable engine simulation work.
This is a great street engine - smooth and powerful.

Type: V-8, 4-valve/358RR
Bore: 85mm
Stroke: special crank, 78mm
Compression ratio: 10.3:1
Cylinder heads: ported/matched manifolds.
Intake valves: (oversize 31.1mm), standard exhaust valves
Camshafts: special Carobu grind for 358RR
Induction: Electromotive EFI with custom mapping
Exhaust: Larini Euro headers, Larini sport muffler
Ignition: Electromotive direct ignition