Thread: 1.9 modified vs. 1.95 roller rockers

And don't skimp...get stronger valve springs too...and get the car tuned afterwards...only way to fully benefit from them.

Originally Posted by bluegtp91

And don't skimp...get stronger valve springs too...and get the car tuned afterwards...only way to fully benefit from them.

Thanks for the extra advice to make sure I do it right. I'm planning on Crow 105's to go with them based on all the posts I've read here about them. I'll get the tune done when I drop to a 3.4. Hopefully, all my mods will be done by the end of summer.

My car has 64,000 miles on it. How long should the timing chain last with the 105# springs?