I got my head at a shop getting new guides, valves, springs, retainers, etc because I found 3 bent valves and exhaust valves had quite some play in them. Buschur head with less than 30k on it. I don't like the exhaust valves that were in it and the 1 angle valve job , the valve face was BEAT UP on the exhaust valves only and the titanium parts were worn but anyways we're going with 1mm Ferrea valves(had .5mm in it). Most likely the 6000 series, looking at the options of springs and I got supertech, Kiggly, Ferrea and manley. I see beehive and dual spring and I saw normal tension and heavier duty tension. Can someone explain the different springs and what they're good for?

I saw the Ferrea dual spring was much more money than the beehive but always thought the beehive was better. Which brand should I get? I'm aiming towards Ferrea, kiggly, or supertech, if I can't afford the first two. Beehive or dual spring?....Normal tension or heavier tension? Not looking to rev it to the moon, but I want something so I don't have to be doing this in another 30k miles which is only a year of driving for me

Forged 2.0L wiseco HD's
S2 cams
FP Black at 40psi
Aquamist setup
75% highway driving....
Supposedly made 640hp when previous owner had it...

Anymore comments or suggestions...
Thanks

 

for valves i went with the ferrea comp series as it was what my head builder recommended and i switched from the Super-techs to the Kiggly without even haven to think about it and ive got GSC S-3 cams

just a quick question why did you go with oversized valves ?

 

Because currently it has .5mm valves and ONE angle on the valve seat, below the seat is blended and there's no more room to have more angles on the valve job and also with .5mm I'm only limited to super tech and manley valves? Ferrea doesn't make that size so we're stepping up to 1mm for much more valve options and then we can run multiple angles on the valve seat so it's a win win.

Still deciding on what springs to get though

 

Ended up going with 1mm Ferrea 6000 series valves and Kiggly springs with titanium hardware