Hey,

I did a search on this but couldn't find much info.
I was wondering if anyone knows the weight of stock inlet & exhaust valves vs aftermartket valves such as Supertech, Ferrea, Crower, SOS etc?
I think i've got a blown head gasket so I might aswell build my head whilst it's off the car. I'm wanting to keep valvetrain weight down for obvious reasons but I'm also wanting reliability. Therefore I was hoping to go with dual-springs (so I have the safety net of an extra spring should one coil fail and stop the valve dropping into the cyliner), steel retainers and perhaps something like the Ferrea or SOS valves.
I quite like the idea of the SOS inconel exhaust valves as my exhaust valve temps will be a little higher than usuall as I'm running reduced valve overlap via cam-timing.

any info on spring/retainer(steel vs ti) weights would be great aswell if anyone knows/has any kicking about that they would like to weigh.

Cheers

Dan