Typically, the longer V-8 chains require frequent changing. The shorter chains don't. To check, align your timing marks on the crank and the camshaft front bearing. Check for the offset due to wear, commonly called stretch, and note the difference. The guides may need to be replaced. The pins need to be removed, the guides replaced and new pins inserted. If the offset is still excessive, the chain will need to be replaced.

Check it out, post some pictures and we can help you.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.