Is it a usual practice not to put in new valve springs?

110 miles on rebuild and valve spring broke and trashed engine. The builder said it is unusual to change valve springs. They last forever. Need a answer from of you that rebuild engines.
Thanks

Easy

Other guys may say I'm wrong, but from what I understand they are like anything else and do fatigue over time. If an engine I rebuilt had sat I would replace them for sure, imagine the stress on 1 valve spring compressed for like 20 years! That's one reason I try to run all my engines a few times/year. If the engine I rebuilt was running, it would depend on how well it ran and the mileage. But last forever? I wouldn't think so. Just my

Don't know that I'd use the word "unusual" in either case.

If springs are to be reused, they are normally checked for spring height, pressure, etc, and yes it is commom to reuse springs.

With many of today's higher lift cams, the cam maunfacturer will recommend using new upgraded springs, so it is also common to use new springs.

Depends alot on what else you are changing and what your budget is.

To me it depends on the power level, as basic builds on old engines without signs of severe overheat etc, can get by with existing springs. I've only seen about 5 springs broken in 30 years.

Thanks for the reply. My agreement with the builder was that he would rebuild the engine with him buying the camshaft and lifters. He said he would guarentee the engine for one year. I assumed he would get new valve springs. A 40 year old motor It was his decision not to put new springs in. Is he still liable for the engine rebuild? Have you had any experience with this?
Thanks,
Easy

Is he still liable for the engine rebuild?

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Do you have a written agreement that states EXACTLY what he is installing and providing? If not you're up a creek. Learn to get everything in writing, business is business.

new spring new springs new springs i would never reuse springs unless you know low miles and match cam