I'm about due for mine, and I've decided to swap out the head for a ported/polished one while I'm at it .

I hate timing chains. They're a PITA to change. I remember doing the one on my '75 280Z(long gone) and it took most the day, plus waiting for the gasket sealant to dry before I could drive it .

 

I had mine done for $424 including seals and drive belts.:chuckles:

 

Any modern timing chain will last longer than the engine. 0.6% chain stretch is about the service limit, and it's estimated that depending on the system it takes about 400-500k miles.

But yeah, chains are a bitch to change.

 

:running: i got a chain now

 

:run: > :running:

 

on a scale of 1 to 10 10 being the hardest how difficult is it to change the timming belt?

 

5. It's just time consuming.

 

hamster power > timing chain > timing belt

 

the timing belt on my Porsche is $11. If you go to a dealer, it can be a $1500 easily. But includes a $125 water pump, another $30 in belts $90 gasket set and a $5 thermostat. Not even $300 in parts if you want to do it yourself. But it's hard to tension the belt without the "proper" tool which costs $500.

 

The problem with a chain system is that they can be noisier than belts

i don't know, my 94 honda is noisy (clickedy, clack, especially in cold weather) even with the quiet timing belt. my cars got 133k and never been changed. i'll wait till it self destructs so i can get a new car.