[Synister]

Any recommendations for a head gasket with a .040" block? Is the stock head gasket ok to run?

 

[RescueF250]

Why are you bore it that much ?

 

[PSDPlayer]

Call Mark at Flatout gaskets. They make an MLS and will make it to whatever bore size you want.

 

[Synister]

Why are you bore it that much ?

My friend has a lot of miles on his block and I'm expecting the cylinder distortion to be awful and I am expecting some nice marks in his cylinders.

I dont know if it will have to go that big but just in case.. I wanted to know if the stock gasket would accept that kind of bore 3.78". The bore on the gasket is not completely round and I am assuming that when the gasket is compressed that some material may enter the combustion chamber. I was told that some material would be ok as long as the fire ring is sitting on the block and the guys at RCD said the head was a closed chamber design so the some material will be ok also.

What do you guys think? Like I was saying it might not have to go that big but I would like to do my research just in case.

 

[Synister]

Call Mark at Flatout gaskets. They make an MLS and will make it to whatever bore size you want.

I was more interested in using the Ford Gasket, but thanks for the info

 

[Logan21SV]

Spend the money and get the block sleeved back to stock bore. These engines run hot enough as it is!

 

[PSDPlayer]

I was more interested in using the Ford Gasket, but thanks for the info

Well then use .030 over factory pistons and the factory overbore gasket.

 

[Synister]

Well then use .030 over factory pistons and the factory overbore gasket.

I did not know they had a over bore specific head gasket for this motor. Anyone have a part number on the over bore gasket set? I know they sell the std head gasket by the bank with the stand pipe and bolts, i'll assume the overbore are sold the same way?