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Interference engine or not?

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Old Jan 27, 2017 | 04:07 PM
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Interference engine or not?
Is fords 302 engine an interference engine?
 
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Old Jan 27, 2017 | 04:47 PM
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No it is not.
 
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Old Jan 27, 2017 | 06:23 PM
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The valves may not bend over if the chain breaks, but I do think the valves will contact the pistons. Either way, timing chain failure is not common.

Why do you ask?
 
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Old Jan 28, 2017 | 12:01 PM
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The valves will not contact the pistons so long as we are talking about a stock motor. There are no Ford engines with cam in the block that are interference fit from the factory.
 
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Old Jan 28, 2017 | 12:33 PM
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Originally Posted by jas88
The valves will not contact the pistons so long as we are talking about a stock motor. There are no Ford engines with cam in the block that are interference fit from the factory.
Interesting. I heard most all engines were interference engines. Do you know if that goes back to the Ford 390 engine that was last put in Ford trucks about 1976?
 
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Old Jan 28, 2017 | 12:34 PM
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Originally Posted by GoinBoarding
The valves may not bend over if the chain breaks, but I do think the valves will contact the pistons. Either way, timing chain failure is not common.

Why do you ask?
I was just curious haha just trying to learn a little more
 
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Old Jan 28, 2017 | 12:36 PM
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Originally Posted by jas88
The valves will not contact the pistons so long as we are talking about a stock motor. There are no Ford engines with cam in the block that are interference fit from the factory.
alright cool thank you man
 
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