What size valves do 5.3 liter heads come with??
09-10-2002, 02:04 PM
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Re: What size valves do 5.3 liter heads come with?? Nope, sorry. The 5.3 heads have a 1.89 intake valve compared to the 2.00 intake on the LS1. But, the seats will hold up to a 2.02 intake.
