Quote:
Originally Posted by edram454
Kevin is probably referring to the time a young lady in charge of starting the zr-1's and parking them after assembly, would start them in the freezing cold and rev them up big time without warming up the car and thus caused damage with the cam chains etc... they stopped lt5 production for a while until they found out what was being done. The young lady said that is the way she started up her car in the morning so she did the same with these brand new zr1 lt5 dohc cars. These motors were tested in practically every condition except the ultra high revving in the freezing cold. That was the only episode a lt5 blew up in the parking lot. No other v8 had to endure the 200 hour durability test in order for it to be installed and sold in gm cars. I really dont think many lsX engines can withstand 200 continual hours of floorings...I would bet on that. lt5's are not perfect but they are durable and they do make power and they dont really on power adders to make power.
As far as the z06, I like them very much. Unfortunately I have seen recently quite a few having major engine failure. I have talked to very knowledgeable people in the corvette world and they say they are not surprised. It happens more than people know. I love the ls7 427 but now I would be hesitant to buy one. Maybe its there owners abusing them or not maintaining them properly?? who knows.. What I do know is that they are not as durable as an LT5. I am a big fan of the ls7, very big fan and it has been depressing to see some of them lose engine oil pressure. I like thels7 better than the lt4 because of its torque and its natural power.
ed ramos #3028
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The difference is the internet. We've heard about an isolated number (3, maybe?) of LT4 failures because those of us who pay attention to these things have instantaneous access to such info now due to the existence of the worldwide web. The reason we didn't hear about it back then was because we lacked the instant access to EVERYTHING that we have today, but even the nearly-bulletproof LT5 had its share of failures when new. Because of this, I have decided to FEEL that the LT5 could not withstand a 200-hour durability test, and I have also decided to FEEL that there's no way it could have run 24 hours straight at nearly 176 MPH.