What is the best way to get performance out of 5.3L chevy...


What is the best way to get performance out of 5.3L chevy? Will not even peel out Mechanic's Assistant: What is the model/year of your Chevy? 02 avalanche Mechanic's Assistant: What year is your Chevy? 2002 M...

What is the best way to get performance out of 5.3L chevy? Will not even peel out Mechanic's Assistant: What is the model/year of your Chevy? 02 avalanche Mechanic's Assistant: What year is your Chevy? 2002 Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far? Yes, K& N cool air intake& [exhaust](/topics-exhaust-chevy/) Mechanic's Assistant: Have you checked the coolant level? Have you checked for a leak in the [radiator](/topics-radiator-chevy/)? Yes, no leaks Mechanic's Assistant: Anything else you want the Mechanic to know before I connect you? Yes, are turbos or superchargers legal in California? If so what kind? Also do performance chips work?

Automotive Expert
Hello! My name is Gary. Welcome to JustAnswer. I'm reviewing your question now, and will post back with a reply shortly. A 5.3 is one of the baby LS [engines](/topics-engine-chevy/). I would consider a larger engine, say 6.0, before adding turbos. Some head work, bowl work, 5 angle seats, and a [camshaft](/topics-camshaft-chevy/) upgrade are also some options. Gary

What is bowl work and 5 angle seats?No
Automotive Expert
Both terms within the cylinder head. The bowl is the area under the valve seat in the valve guide area. The valve seat area and time spent here is most beneficial. Typically, a valve seat might have 3 angles. A seat of 45 degrees, a top angle of 30 degrees, and a bottom or throat angle of 60 degrees. Extending this to 5 angles makes the valve seat smoother to airflow. Gary
Automotive Expert
Do you need any further help? I hope my advice has been of assistance to you. Thank you for using Justanswer today. Gary

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