4.0L heads for 3.5L block?

Kassi · Post by **Kassi** » Sun Nov 25, 2007 1:41 pm

Hi,

I found that this would be incompatible.
But in my opinion I can use the new heads for the 3.5L block when using the composite gasket, optaining similar compression ratio than with the old design. As it was said many times about the third row of screws there is no need for.

Please has anybody done this conversion or has any idea why this should not be possible?

Thank you
Regards
Christof

Stuball · Post by **Stuball** » Sun Nov 25, 2007 6:35 pm

I have the 4.0/4.6L heads fitted to my 3.5 engine using composite head gaskets, no problems at all.

Also you are correct, no need to worry about the 3rd row of bolts (my heads dont even have the holes for them)

Stuball

mgbv8 · Post by **mgbv8** » Sun Nov 25, 2007 6:50 pm

Same here Christof
I have 4.6 heads on my 3500 with comp gaskets. No problems at all.

Kassi · Post by **Kassi** » Mon Nov 26, 2007 4:15 pm

Thank you guys, that was helpful for my further planning.

Kind regards
Christof