spark plug help

can anyone tell me what plug the 440 edelbrock performer heads take and possible bosch platum # also

A lot depends on the build.I wouldnt run Bosch in a lawn mower.they are junk period.Ive pulled jundreds from cars at work because they wont run with them.Autolites or NGKs are the best.Rocky

ok might u have a part # for them a champion # them i lost the paper work and forget what they take

For heads #60929 & # 60189, 14mm x 3/4" reach gasketed spark plugs; Champion RC-12YC or equivalent.