You decided to tear motor apart without the stuff you need or want to put back in it? Without a plan...? No too smart!
Worst case scenario is your cheapening out on $25-30 worth of valve sprins will cost you a motor, plain and simple! The fact that you're asking if you need a tune tells another story, but anyway. No you don't... But you'll also be wasting the money you decide to put into the engine via mod's WITHOUT a tune! The tune will only maximize the benefit and whatnot of what you decide to add to the engine, drivetrain, etc.
My personal opinion is you get what you put into it...
Cheap/Fast/Reliable
You can only have two of these three, so pick wisely!
Lim gasket, valve cover gaskets, coolant elbows, rockers sure, but do seals and retainer while there, port that blower and throttle body yourself, change plugs, wires, oil, tranny fluid and filter, shift kit, go open cone and then tune it... You'll love what ya get!
But the research you should have done already is too late, now you'll have to order things and wait... To do it right that is. Don't just get everything at local stores, there are better places like Rockauto that can have it to your door in no time. I get from them in 2 days regular shipping.
Anyways... Good luck!
