The 340 springs mentioned above will work. They are safest choice. There is an Enginetech equivalent on Rockauto ERV901 which is even less expensive, like $2.01 each. I've had good luck with Enginetech parts.

You don't need Comp 901s or their equivalent. They are stiffer than you need and increase the risk of failure during breakin (although it is still quite small if you take care.)

R.