Head components

Crankshaft gear info:
• This reinforced crankshaft gear has been manufactured specifically for uprated turbo engines, where the original crankshaft gear not withstand the loads
• OEM part number: 034105263A
• Material: 42CrMo4

Lifter info:
Outer diameter - 34.97mm
Inner diameter - 33.10mm
Outer height - 26.30mm
Stem length - 14.70mm
Stud diameter - 7.00mm
Weight - 50g
16 pcs. FCP Engineering racing mechanical solid lifters.
Forged steel, nitride hardened surface, HRC 50.
Installed follower height to camshaft must be adjusted with lash caps (not included).

Product detailed specification
Model number	BMIVN-1065
Head diameter	35.40mm
Stem diameter	4.97mm
Length	111.75mm
Material	Black nitrided stainless steel
Fits for	BMW 4.0, 5.0 - (S65B40A, S85B50A)

Outer diameter - 32.97mm
Inner diameter - 31.00mm
Outer height - 26.50mm
Stem length - 13.90mm
Stud diameter - 7.00mm
16 pcs. FCP Engineering racing mechanical solid lifters
Forged steel, nitride hardened surface, HRC 50
Installed follower height to camshaft must be adjusted with lash caps (not included)

Product detailed specification
Model number	BMIVN-1055S
Head diameter	32.00mm
Stem diameter	4.97mm
Length	104.9mm
Material	Black nitrided stainless steel
Fits for	BMW E60, E90, E91, E92, E93, E82, E88, E89, X6, Z4, F01 - 3.0 (N55B30, S55B30)

The 6000 Series Competition Valves are designed to provide excellent reliability in an environment of high spring pressures and roller cams, at a budget price. They have higher fatigue resistance and tensile strengths than our competitor’s best offerings.

To manufacture the valves we use our exclusive two-step slow forging process using EV8 stainless steel on both intake and exhaust valves.We provide a special heat-treatment and stress relieving process, along with hard chrome stems and friction-welded hard tips. We finish with a swirl polished head. The valves feature flow improvements to deliver the power needed for today’s sophisticated racing engines.

Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.

Valve springs data
Installed seat pressure - 38kg
Load - 100kg@12.5mm
Max. lift - up to 13mm
Made from chrome-silicon steel SAE9254-V
Outer spring outer diameter: 30.50mm
Outer spring inner diameter: 23.20mm
Inner spring outer diameter: 21.20mm
Inner spring inner diameter: 16.20mm
10 pcs. outer springs
10 pcs. inner springs
Fits 5 cylinder 10V Audi / VW 2.5TDi engines.
With this set the risk of valve flutter and a possible engine failure is minimized.
Recommended for engines with series and racing camshafts and over 7500 RPM.