block type 1988 Mercruiser 4.3l V6

tom03

Seaman Apprentice
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Apr 17, 2004
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46
How can I find out what type block my 1988 Merc. 4.3l is ? Serial no. C318073 .<br /><br />Thanks a lot, Tom
 

bomar76

Lieutenant Commander
Joined
Jun 27, 2002
Messages
1,963
Re: block type 1988 Mercruiser 4.3l V6

It's a GM block.<br />That what you needed?
 

tom03

Seaman Apprentice
Joined
Apr 17, 2004
Messages
46
Re: block type 1988 Mercruiser 4.3l V6

Thanks, what else would I need to know to order a carb. - injection kit ?
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: block type 1988 Mercruiser 4.3l V6

You also need to know if it's a Rochester or a Mercarb.<br />The Mercarb is identifiable by having only one idle "MIXTURE" adjusting screw. Not to be confused with idle speed.
 

tom03

Seaman Apprentice
Joined
Apr 17, 2004
Messages
46
Re: block type 1988 Mercruiser 4.3l V6

Thanks, DON.<br />Is there any good source for fuel injection kits ?<br />And whats actually the difference between EFI and MPI ?
 
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