is it the same as a cosworth one

 

There are at least four different pinto blocks(prior to cossie), but early 205 blocks were selected from same line as std pinto blocks, so yes the early ones are the same.
tabetha

 

I used a normal pinto block in my cossie cortina and then the XR4i for 9 years

It died after having 350bhp through it for a couple of years

Was not even a 205 pinto

Steve.

 

When ford wanted cosworth to make a new head they gave cosworth the 205 block to work on back in 1984 I believe, then improved to 200 when they made the sierra 4x4 but actually ther are the same!

 

nice one thanks

only asking as a mate is rebuilding his saph (6 years in the making)and has a good 205 pinto block.
just got to get a set of pistons and then he can make a start on rebuilding it

 

Its some thing to do with the GRAD on the Block theres 4 numbers (i think) where the Dizzy sits i think a good grade is all 4's or some thing like that (thats whot i got told)

 

think the early transit vans were cossie block,s they have 4 no,s on

 

Transits are normally 202 blocks, later ones anyway.
The 4wd 200 block and the 2wd 205 are much different, differnt in many ways, they are absolutely not the same block.
The four numbers reffered to have nothing to do with good or bad but are infact batch numbers for tracing purposes, as the metal content varies slightly from batch to batch.
The cossie blocks(early ones) had thicker walls, but NO thicker than a LATE 165/185/202/205.
tabetha

 

i was told by jeremy at cosworth the only diff between the 200 and the 205 was the waist was thicker on the 200 for the diff

 

The 4 numbers you are referring to are stamped on the block by the dissi after production and are the bore tolerances of each cylinder - they are nothing to do with the material the block is made from.

All the Pinto 205 blocks were stamped depending on how close to the correct bore each cylinder is, these vary depending on how accurate the boring machines are set up on the production line.

number "2" represents the closest to Factory tolerance a bored cylinder can be, therefore all the blocks that had 4 bores all with number "2" were selected, and put to one side for the cosworth engines thats why you will see on a cosworth block 2222 under the dissi, the rest went onto normal 2 litre sierra builds

those with numbers either side of 2 ie 1, 3 4 are either slightly undersize or slightly oversize - they still accept standard pistons but are not the optimum size - the undersized bores can be brought up to "2" by simply honing the bore, they dont need re-boring

Very few of the 202 block that were kicking around were "2222" some were over some under some blocks had under and over the optimum.

 

i ve a question regarding a 202 block

a friend of mine had it in his sapphiere

is this any good?

usable for 450 hp engine spec?

 

this might make me seem intelligent, but i can assure you i'm not, this came from Karl Norris

200 blocks have several differences to a 205, but the three most important that give considerable increase in strength/improvement are:

1. Extra thickness to the bore tube up to half bore tube height. The bore tubes are also siamesed together unlike the 205 block.

2. Full height cast in pillars for no.3 pair of head bolts. This means the land into which no.3 pair of head bolts screw, is a full height cast internal pillar, adding considerable strength to the deck face, and is why long studding is NOT necessary.

3. At the base of the water jacket are 10 square cast bosses which allow the block to be 10 studded if required. (This process I carry out only when block cracking is an issue around no.2 or no.4 head bolt pairs. However from experience the block cracking issue around no.2 and no.4 pair of head bolts is actually a heat issue, and often associated with head gasket failure. It is NOT the daft misconception that the head lifting cracks the block due to using head bolts!

Other minor mods to the 200 block vary depending upon year of 200 block and include: (years are approx as I'm sure the exact date varies)

Deletion of rear core plug (1992 onwards) Designated V90HM 6015 AB (pre 92 blocks are V90HM6015AA)
Deletion of mechanical fuel pump drive machining (1994 onwards)
4 Additional internal bosses inside crank case for machining of internal piston cooling jets as used on EECIV escos (1992 onwards)
Use of larger size main bearing caps over early 205 blocks though these are also found on late 205 locks.

That folks covers all the significant changes to a 200 block and is as you can see quite significant. It does however not mean that 205 blocks are no use, simply that the 200 block is in design at least, a stronger block.

 

I asked for ab 202 Block

but thanks for the differences between 200 and 205 block!!

Well explained

 

-SIM-

well it wasnt your thread! lol

i was elaborating on Tabetha's quote