One Pair of Glenwood water cooled log style risers designed to bolt to wet log manifolds. They sell for over $500 new.
They came off a 455 olds jet drive, but from what I understand they will fit other manifolds. These are the Large Risers (12" x 13"), that use a 4 3/4" round flange. The hose ends are stepped to accept 2 7/8" or 3 1/2".
http://i4.ebayimg.com/05/i/07/a6/d1/a2_2.JPG
http://cgi.ebay.com/ebaymotors/ws/eB...RK%3AMESE%3AIT
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