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Bore it .030 over. A 350 has a 4 inch bore. When you go .030 over, the cid., becomes 355.
4.030"
I believe it is 260 horsepower.
The cost of 5.7 350 fuel injection for horsepower is approximately $200.
Depends on the year, vehicle it is installed in, and what 350 you are referring to. GM built many different variations of this engine over the years.
If it is the 5.7L 350 V8, then it has 175 Horsepower
350 horsepower and 650 pound feet of torque.
it has 43 horsepower stock
245
260
255hp
That would be an engine whose cylinders have been bored .030" oversize and fitted with new oversize pistons. New displacement would be 355 ci.