67 spit oil cooler

[lewis mckillop <lsmc@lightspeed.net>]

        hello all,
    I recently purchased a 67 spit. It has an oil cooler on it. I was
going to put the oil cooler on my 63. Where the oil filter usually goes
is a finned, aluminum cylender. What the heck is it? If i want to
replace my oil filter do i have to buy this whole cyclender? If i do
where can i get them and how much ?

thanks once again,
lew 63 spit
      67 spit