wot year is my outboard

[avon5.4]

hello every one just joined the site as ive just been and bought a rib its a avon 5.4 with a selva 80 as main engine with a 4hp as back up, the seriel nu is 4 ac 6eo s 013652 , is there a web site that gives a idea about age or can some one tell me thanks

[Nos4r2]

Ask your question on iboats.com forums-someone there should be able to tell you.