1971 Ferrari 365 GTB/4 Daytona

Model: 1971 Ferrari 365 GTB/4 Daytona

Project Overview:  Carobu Engineering performed a complete mechanical rebuilt on this 1972 Ferrari Daytona Coupe (s/n 14187) that included the engine, drive train and suspension. The interior was redone in black leather with red accents in the Daytona style. During this process, the car has been transformed into a unique "Gentlemen's Hotrod". Below are the details of the changes that were performed on the car.

Engine Specs:

425-hp @7,000-rpm, 338 lb-ft of torque @6100-rpm

Type: V12, 365 GTB/4 Daytona
Bore: 82mm Razzo Rosso forged pistons
Stroke: 71mm
Compression ratio: 10.25:1
Cylinder heads: intake ported and tested on flow bench, intake and exhaust manifolds matched
Camshafts: Special Carobu grind, 272/263-degree with 10.6/10.4-mm lift
Induction: 6x40 DCN Webers with custom Daytona Comp style air box

Exhaust: Euro-spec Tubi headers, Tubi stainless steel mufflers and pipes
Ignition: Electronic with optical sensor conversion

Suspension and Brakes:

Suspension: fully adjustable Koni aluminum racing shocks with stiffer 2.5-inch diameter racing springs, lower ride height, larger front anti-roll bar
Brakes: Brembo GT big brake kit with F50 4-piston calipers, 332-mm front and 328-mm rear rotors, stainless steel brake lines.

Wheels and Tires:

Wheels: 17x7.5-inch front and 17x8.5-inch rear Razzo Rosso 3-piece alloy wheels
Tires: Michelin Pilot Sport

Engine and Exhaust:

The engine was completely rebuilt to "Comp Daytona" specification. CAROBU Engineering utilizing a methodical approach of measurement, engine simulation modeling and testing, developed the engine modifications. The cylinder heads were ported and port-matched to the intake and exhaust manifolds. The engine was then bored to 82-mm and equipped with aluminum forged pistons, proprietary camshafts, Carrillo rods, electronic ignition with optical distributor sensors and custom fabricated "Comp-style" air box. The engine produces over 425 hp at 7000 rpm and 338 lb-ft at 6100 rpm. A special-ratio rear-end gear was also fitted to further improve acceleration times. The car is equipped with European-spec headers fabricated in stainless steel and stainless steel exhaust by Tubi Style.


The increase in engine performance required that the stock brakes be upgraded in order to bring the 3600 lb car to a stop within a reasonable distance. CAROBU Engineering equipped this Daytona with its exclusive Brembo GT kit including "F50" 4-piston calipers with 332 mm rotors in front and 328 mm rotors and stainless steel brake lines.

Suspension and Wheels:

To improve the handling, CAROBU Engineering fitted the Daytona with Koni racing shocks with stiffer 2-1/2" diameter racing springs, and lowered the ride. The shocks are all-aluminum construction for light weight and fully adjustable for ride height, compression and rebound. The spring rates were specially chosen for this application to produce neutral handling. This Ferrari is also shod with Razzo Rosso 17x7.5-inch front and 17x8.5-inch rear, 3-piece wheels with Michelin Pilot tires. Additionally, a stiffer front anti-roll bar was installed.


The interior was redone in black leather with red accents in the Daytona style, which compliments the exterior aesthetics very nicely.