To go along with my cam install, i was planning a timing set change.

Ive heard some horror stories about stock and LT4 timing chains breaking and causing big problems, so have decided to either go with the LT4 extreme duty, or a double roller and a electric water pump.


Seems both of these will be about $200. Now from a reliability stand point, which would be better. This car is my daily driver and i absolutely dont want my water pump going out on a big trip 500 miles from home.


So are the electric waterpumps more reliable than some say? or should i stick with the LT4 ED. Or would i be fine with a stock replacement.

Thanks for your ongoing help.

Cam is a 224/230, so car will not be reved to much over 6200 (hopefully) if that makes any difference.

 

If I'm not mistaken, Summit was selling a Lunati timing chain for OBDI LT1 cars. That would give you the strong timing chain and keep the reliable stock water pump.

You should double check on that info, though, since I'm not 100% sure as I can't use it on my car (OBDII).

 

IMO, I would stay away from the Lunati set (for one its a link chain, not a roller). I've also heard some pretty bad horror stories on the Lunati set.

I would either venture off into getting a Cloyes double roller or Combo also sells their own for $10 cheaper than the Cloyes. The Cloyes will only run you about $80 at Combo. But with either of these sets, you'll have to convert to an electric waterpump.

 

TTT

Anyone comment on the reliability of electic water pumps?

 

I've never known people to have any problems with the electric WP's. They only last so often, but they usually last longer than thought.

 

Spoken like a true politician.

 

I've been on this board for over 4 years now, and if I had $1 for every thread that was crying about their electric waterpump kicking the bucket, I'd be rich!

Cliff notes version: you'll never catch me using an electric waterpump.

 

I've never hear anyone complain about EWPs, only about coils.