I was wondering if true roller rockers will clear the stock centerbolt valve covers? Thanks! Mike

Crane Golds will.

If you can do a search, there's a link floating around about pinching the baffles straight in the stock covers to gain the needed clearance.

The Crane golds are made from aluminum. That has a finite fatigue life. How long, on a street motor, until they break? Will they go 100k miles?

I dunno?

Crane made the specifically for the LT4, so who knows. Not that anyone expected to use an LT4 for 100,000 miles since they were "the bomb" in their day. Now that a stock LS1 will run circles around one people may drive their LT4 equiped cars more often.

About the only thing that woule deter people from driving them that much is that they only came in limited number vehicles.

So honestly, I don't know. Crane might?

Thank you for the reply...I have a set on the shelf in the garage and I just bought the 89RS.... figured I would add them if I did a cam change but they have a wide body and I was afraid of interference.

Thanks!
Mike