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Originally Posted by FUH Q  The 427 from tsp uses a 4.065'' bore with a 4.100'' stroke. Would the ls7 have a much longer life? |
The LS3/L92 427 has a 4.08 bore and 4.1 stroke. I have one from Texas Speed and love it. I can't say the economy is good though. I'm averaging about 10mpg in town and 15mpg on the highway. But, I've got all the power I need. I'm sure with a smaller cam I would have a lot better economy.