the parts counter guy at NAPA told me the '89 SR-5 was a twin-cam. is this true and does that make the l.6 4-cyl. an interference engine?
89 was in some was tein cam,dont know what you mean by interference engine, maby someone else can help .
The '89 Corolla was an interference engine utilizing a timing belt instead of a timing chain. I don't know what engine options were available but there typically are a single cam and a twin cam option available in the same vehicle, since there's usually a performance and a lower-end price point.
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