These motors are very well built. There'* no doubts there. Series 2 are also built well and can go just as long. The S1'* IMO had some things that made them last well and it'* not a bad thing, but a few items that help make a motor durable are sand bagging on the factory'* part.

S1'* aren't known to flow well, make a ton of power etc. They run well, they run forever and beating on them doesn't typically effect them adversly because they can't give much more than they do each day. That middle of the line space of good power with plenty of restrictions etc keep it solid for a long time.

I cammed my motor at 186K miles.

I agree Bill... I would worry about the trannys on our cars before i worry about the motors

me to on the trans buddy its got its issues with it like the lower cooler line keps coming loose so i fixed it with loctite

not just that but some of the gears arent heat treated... I believe its 4th gear. and the plates have a tendancy to let go and not grip after 120,000 miles of stop and go traffic which isnt that bad but dont usually last as long as the motors

yeah i'm not sure if its the origanal trans or not but hey 453 k miles on the motor i'm very much so impressed. If it blew up today i wouldn't be mad for the reason of how long its lasted but i hope it does not blow up today i still got chit to do lol

Dont say that! thats the last thing u need with all the bad stuff going on in your life.. Could be the straw that broke the camels back.. "AHHHH my tranny went out!!" LOL

Call Me Dakota

made it home just find steve

I bought my 94 with 278K miles on it. I drove it an extra 12K and then I started tearing it apart. The engine was losing oil pressure. Allegedly, the previous owner didn't do any maintenance aside from 3 engine rebuilds and 4 transmission rebuilds, just about. So I guess you could say that a completely unmaintained Series 1 L67 lasts about a third of 278K miles before you have to rebuild it. That'* not so bad, you know, 93K miles with a few oil changes.