hi, can anyone help me ? i have a 200 block with small core plugs, can anyone tell on what model it came from and is it a turkish block ??? any help please

 

Turkish blocks have 99 on the end of 1 of the numbers cast into the side of the block.

 

arnt small core plug blocks rs500 blocks?

 

thats why i am confused because these core plugs are as the rs 500 block but the block is 200, and i think from a green top engine of a sierra 4wd .

 

Some pictures??

 

No, RS500 blocks are strengthened 205 blocks with small core plugs, (YBD)

Would be from either 4x4 or Escos as none of rest of range had them, the early 4x4s were red tops and had 205 blocks along with many RS500 motorsport revisions.

Martin

 

Never seen a 4x4 with an origional 205 block, even the very early 4x4's ive seen have always had 200 blocks in them

 

Mines a 4x4 with its original 205 block on a h plate!!!!

 

lots of 4x4's with original 205 blocks

 

Never knew that lol

 

i will try to take some pictures but it is still on the car but you can see the 200 logo on the side.

 

small turbo escort is my shot at the prize

 

As i said, they also had a red cam cover and the engine was designated YBJ opposed to YBG, with many RS500 revisions!

Martin

 

Depends what you consider the case to be, the 205/200/and RS500 blocks were different castings, but visually very similar.
RS500 blocks were totally different castings, the smaller core plugs was just chance, designer John Hancock ordered a brand new block produced for these as he considered no reliability in racing above 350 for a 205 block, this block was produced by ford as opposed to cosworth, this was strengthened in several places, including the top deck being thicker than on 205, as the blocks have more wobble than a jelly!!, this was produced on a std production machining line, the lubiraction system was also changed.
tabetha

 

What about the new badge of 200 blocks that were mentioned on this forum last year? It was said they would have a stronger cast and will be good for 800bhp cossies!!! What about them? I think Martin Hadland was involved in the project and he mentioned even stonger/better YB heads!!!! But I didn't hear anything more!!!!

 

I guess what is needed is a new block with thicker bore walls, better material spec (like sintered graphite iron) and the option of increased deck height upto 14mm....