318 makes popping noise on number 1

mopar head said

I`d pull the valve cover and make sure everything is kosher
might be a pushrod trying to find it`s way out.:happy1:

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Yes that'd be the 1st thing I done,check rocker arms and pushrods,could be a bent pushrod or a worn out rocker arm,or both, have seen pushrod stuck all the way thru a rocker before and still run fair but popping sound and was in a 318