[ejf87]

Want to switch to aluminum heads from iron.Can i use my valves and springs from the heads i have now or get new ones?Just want to keep cost down.I have the 990 casting heads and this is a track car only.

 

[RB69SS396Conv]

That depends...

Are they the right size? If they are, then yes, in theory, you could.

OTOH, just because a thing is possible, it does NOT automatically follow that it's a good idea. If you have heavy crappy stock valves and worn-out springs in the iron heads, then it would be pretty dumb to swap them over. But if you have good-quality valves in good shape and near-new springs, AND they all fit, then it might be worth considering.

I'm guessing, it's probably NOT a good idea, even if it's possible.

 

[ejf87]

I think your right.This might be a good time to upgrade to a roller cam?the iron heads,yes still have stock valves 2.19 1.88 but have good springs.Would like titaium keepers and so on.I am going to do it right even if it takes a couple of months.I have a nother motor to put in a race but I know it will only go 12.00s to 11.90s but,I can still race:thumbsup:

 

[Harold Sutton]

I think your right.This might be a good time to upgrade to a roller cam?the iron heads,yes still have stock valves 2.19 1.88 but have good springs.Would like titaium keepers and so on.I am going to do it right even if it takes a couple of months.I have a nother motor to put in a race but I know it will only go 12.00s to 11.90s but,I can still race:thumbsup:

Most of the aftermarket heads also use 11/32 stem valves which are lighter than the stock 3/8" ones. Ferrea offers a hollow stem valve that is even lighter yet and lighter is definately better when your trying to go fast. Spend the extra and get all there is to get out of the change.