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'88 3.8l heads on my 98?

9

98grannyprix

New member
I have the oppurtunity to purchase a set of completely rebuilt 3.8l heads off an 1988 FWD buick. Anyone know if these heads are interchangeable?
 




Since this was posted... are there any heads that are better for our cars that came stock on other vehicles? Or are they pretty much all the same stockers on series 2, series 3, etc?
 
Fatboy501 said:
Since this was posted... are there any heads that are better for our cars that came stock on other vehicles? Or are they pretty much all the same stockers on series 2, series 3, etc?
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No.

Series II and III are different slightly.

Slightly different valves in series III, same poor casting and poorer quality control.

99PGPGT said:
i heard from an auto teacher/tech that ford 3.8 heads flow very nicely, so im wondering if you could do the swap..
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No.
 


Actually, L26 heads are supposed to flow the best out of the entire bunch...being 36/67/32/26

So...if you find some series III L26 heads...get them...have them rebuilt, cleaned up...and ported...and toss them on with some headers if your looking for 20+ WHP gains.
 
99PGPGT said:
i heard from an auto teacher/tech that ford 3.8 heads flow very nicely, so im wondering if you could do the swap..
Click to expand...
That hurt my head even reading that.

Just because two manufacturers make an engine with the same designation of liters doesn't mean the engines are even close to the same.

And Ford 3.8 heads are absolute GARBAGE.
 
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