W2 long valves

I hope these Chevy valves will work for my W2s ! I just pulled the trigger...
Shoot 1st and think later is my moto...lol
I know I will have to install guides.

Ferrea 6000 series

F6208 CHEVROLET SMALL BLOCK (1955 - 2012) 11/32, INTAKE 6000 SERIES COMPETITION VALVES
Small Block
Intake Valve
Head Diameter: 2.020
Stem Diameter: 11/32
Overall Length: 5.06
Tip Length: 0.250
References: 12 Deg..Super Flo. +.150

F6202 CHEVROLET SMALL BLOCK (1955 - 2012) 11/32, EXHAUST 6000 SERIES COMPETITION VALVES
Small Block
Exhaust Valve
Head Diameter: 1.600
Stem Diameter: 11/32
Overall Length: 5.06
Tip Length: 0.250
References: 12 Deg..Semi Tulip Super Flo. +.150