[gumby]

backdraft #397
my 351 w with 500 miles on it
just started making a taping noise under the valve cover
i checked the rockers and they seem ok.

it gets alot louder under load or when reving the engine.

could this be a seized lifter??

is it worth it to remove the manifold and check the lifters?

after replacing lifters ,are initial valve adjustments done the same as a chevy motor or should i just tighten them with the engine running till the get quiet?

thanks for the help