hi all is it possible to bore a 1.8 zetec block to fit the c20 let pistons(calibre turbo pistons) or do you need to start with a 2.0 zetec block? cheers in advance steve

 

best with the 2litre block as u get under piston oil jets i would of thought

 

the only thing is iv got a 1.8 block just woundered if it is possible?

 

and wat head gasket would you use could i still use the normal felpro ones iv bought b4 for my 1.8 zvh?

 

anyone?

 

its been done be for also some 1.8 zetecs come with under piston cooling just make sure you have the right block to start

 

if you use the zvh head gasket (asuming its a cvh style) it will cover up some of the oil ways witch wont be much good for a zetec head

 

im using the cvh head with the zetec block

 

and there XE pistons not LET

 

oh right thought they were the c20let one's so bet they will want a mil skimming of them then didnt think you could bore a 1.8 block that far but looks like i was wrong?

 

looks like ya just better off finding a 2 litre bud,thn u can use the focus RS head gasket

 

They wont need skimming.

 

it can be done but it is easyer to just start with a 2.0 zetec from the start as for the head gasket just use one from a 53 plate focous me and my mates all use this head gasket with out fail its cheeper than a focous rs one im prity sure as well. will hold up to 400bhp some people have tested

 

cheers for the advice guys

 

o wate you are useing a cvh head lol sorry to use this head gasket you will need to have the back of the head built up with weld then skimmed flat

 

The LET give a lower compression

 

whys that?

 

with a 1.8 zvh conversion you can use the standard cvh turbo head gasket as the boar size is very simular but when building a 2.0/2.1 the standard gasket will over lap the boar as its 86mm so you will have to have the back of the head built up and then skimmed flat so you can use a focous head gasket if you dont have the head built up it will leave one of the water ways exposed and give you a water leak. OR if you want to use a standard head with a 2.0 bottom end you will need to use this head gasket

http://cgi.ebay.co.uk/COMETIC-FORD-C...1%7C240%3A1318

as its the same desine as a cvh head gasket but with an 86mm boar perfict for a zvh conversion

hope this helps

 

No, it's a very bad idea. Ford changed the block to go from a 80.6mm to 84.8mm bore as they considered the block requiring more strength, and with only 136hp!!.. a 5.4mm over-bore is a no-no..

Get the 2L block......

 

cheers for the advice guys