conversion kit for /6

ok i picked up my motor tranny quarter panels floor pans trunk pans and trunk extentions! There is one problem. According to the tag my 360 out of a truck is out of an 82-88 i cannot remember exactly but if it is crucial for this question i will go out in the garage and look. but heres the link to the pan http://ads.shoppingads.com/pagead/l...127530722QQrdZ1QQsspagenameZWDVW#ht_515wt_947

Thanks for any help you guys can give me i appreciate it.