Help! MerCruiser 4.3 v6 Not sure what model or year of engine and outdrive!

[passnbyu]

Hi, I'm new to the boating world but I'm looking forward to starting my first boat rebuild. I bought a 1977 Wellcraft Airslot 21 with a preformance trailer. Well I traded a 95 Grand Am Gt with a blown head gasket for it. Payed $400 for it. The motor is locked up tight. It has a MerCruiser Alpha one 4.3 liter V6 (ser. number C617865) and a Alphia one outdrive (Ser. 08989191?). The outdrive is hard to see.
The boat is in good shape. I know this is not the original motor or outdrive. I need to find a web site that I can tell what year and model this motor is. I also need to find a service manual for it. It seams MerCruiser has a lot of different manuals for the 4.3's.
I can't wait to get started on this!! I'm going to try to pull the motor this weekend. I have a rebuilt 1989 4.3 liter V6 out of a Chevy astro van. Its just been bored, new piston, rods re-sized, new cam bearings,crank turned, new rod and main bearings. It even has new brass freeze plugs. I'm going to use the cam out of the marine engine when I put it together.
If any one would have any info on the engine and outdrive, it would be a big help! Also should I use a marine gasket set. Like copper head gaskets? It has a heat exchange.
Thanks to all how read and respond to this!! I like this forum!!
Passnbyu

 

[ussoldier_1984]

Re: Help! MerCruiser 4.3 v6 Not sure what model or year of engine and outdrive!

if you have the serial numbers you can call mercruiser and find out what year and model

 

[Don S]

Re: Help! MerCruiser 4.3 v6 Not sure what model or year of engine and outdrive!

With the serial numbers you posted, the engine is a 1989 4.3L engine, with an Alpha I transom shield, assuming the 08 in your serial number is actually a 0B that B can look a lot like an 8 when stamped.

Here are links to download the proper OEM service manuals for your engine and outdrive.

Engine http://www.4shared.com/document/1FdjddET/Service_Manual_07.html

Outdrive http://www.4shared.com/document/zz_5pj9o/Service_Manual_06.html

 

[passnbyu]

Re: Help! MerCruiser 4.3 v6 Not sure what model or year of engine and outdrive!

AWESOME! This is great! I'm downloading them right now! I can't wait to start. That 89 out of the astro van should be the same block. I still would like to know if I need a marine gaskets set or can I uses the auto set I already have. I know I'll still need gaskets for the heat exchange unit and a couple of other things..

Thanks for all the info! You guys are GREAT!!
Passnbyu