Ferrea Competition Plus Oversized Intake Valves (+1mm) for Honda D16A6 – 8-Valve Set (F1856p)

Description

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.

Intake
Head Diameter: 30 mm
Stem Diameter: 5.5 mm
Overall Length: 115 mm
Tip Length: 4.1 mm
Reference: 25 Degree Super Flo. 1 mm oversize

Fitment:

1990:Honda:Civic:EX, 
1991:Honda:Civic:EX, 
1989:Honda:Civic:Si, 
1990:Honda:Civic:Si, 
1991:Honda:Civic:Si, 
1988:Honda:CRX:Si, 
1989:Honda:CRX:Si, 
1990:Honda:CRX:Si, 
1991:Honda:CRX:Si, 

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