[308] vn efi head conversion

[vk336ss]

i got my 308 stroked to 355 and decked all the goodies and i grabbed some vn efi heads and had them decked like the block.
the carbie manifold to suit theses heads leak water out of the valley into the sump through the gaskets.its like the gaskets arnt doing anything.
HELP....................someone must of had this problem before????

 

[383 hatch]

Need to have the manifold machined to suit the heads/block if they have both been decked. Before you have the manifold machined, just sit the manifold on with the gaskets sat in place, but leave the cork end gaskets out and see what sort of gap is between the manifold/block at the ends. If ther is no gap, the manifold needs to be machined, but if there is a small gap, just put the manifold on with a bead of silicone at either end instead of the cork gaskets. What brand is the manifold just out of curiosity?

 

[nakaz81]

cheers man the manifold is a redline windmaster 2,my mate done this conversion with no probs.i tryed what you said to do and i have no gap maybe a a4 paper gap if im lucky.

 

[383 hatch]

You need to get the manifold machined to suit then. The only other way around it is to use 2 sets of inlet manifold gaskets and silicone them together. It's a dodgy way, but it does work....