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Expert: sprinkles08 replied 4 years ago. Hello and welcome to JustAnswer! Yes, the 3.3 and 3.8 are interference engines. They have a timing chain instead of a timing belt though, I've never seen or heard of a timing chain breaking on a 3.3/3.8 and causing any valve damage.sprinkles08, Chrysler/Dodge/Jeep master tech.Category: Dodge.xpert: sprinkles08 replied 4 years ago. Hello and welcome to JustAnswer! Yes, the 3.3 and 3.8 are interference engines. They have a timing chain instead of a timing belt though, I've never seen or heard of a timing chain breaking on a 3.3/3.8 and causing any valve damage.
Lexus ES 300 Timing Belt - Interference or not? Ever since the dealer recommended replacing the timing belt... before something catastrophic happens I have been trying to get one simple answer. Does this car have an interference engine or non-interference engine. The Lexus mechanic couldn't (or perhaps would 't) give a straight answer to this question. He only eluded to the fact that if the belt was to break the piston may come into contact with the valves and the engine would be toast.