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43L Mercruiser Cracked heads

dhoyerjr

New member
I have a 04 model 4.3L v6 i ha

I have a 04 model 4.3L v6 i had some cracked heads and bought some off a 88 merc are these heads universal they are the same motor just a different year???
 
You have a Vortec engine; the

You have a Vortec engine; the bolt pattern will be different for the intake.
 
I don't know the specifics

I don't know the specifics but there were several variations of the GM 4.3. Suggest you go by the casting numbers and then make sure the bolt holes for accessories are in the right place. holla!
 
You don't want to replace

You don't want to replace Vortec heads with older ones even if you could. Performance will suffer.

Rod
 
"Don't know if I can help,

"Don't know if I can help, but I have a pair of 4.3 heads from a 98 4.3. They were on the engine for about 10 hours. wej@ comcast.net if interested."
 
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