what were they in? was it just a cosworth block? are there shite weak ones around, I heard they used a weak 200 block in the transit??

 

transits had 205 and 202 blocks

 

is it? 200- 4x4 and 205- 2wd 200 is the better block? how is it stronger?
sorry for questions. just want to be sure what i am saying.

 

yes 200 is stronger , they came in the 4wd cars, you can long stud a 200 block , but not a 205 or 202 block.

 

didnt know that cheers.

 

200 is a thicker block that was made stiffer for the strains of the 4x4 having a diff bolted to the sump, the rs 500 had a 200 block allthough this had smaller core plugs which give it slightly more strength

 

rs500 has 205 block,different casting material with small core plug

 

Core plug is zero to do with strength, the small core RS500 block(205based) used a slightly different casting mix.
There are numerous other pinto blocks available, apart from 200/202/205, maybe not in this country, but I'm sure the 197 was used over here.
tabetha

 

200 is only avaliable in 4x4/Escos models, it is a stronger block than the 205. Part of the reason it was used due to the transmission stress of the 4x4 models.

I'm sure there is no such thing as a 197, the number merely denotes the capacity i.e the 20, the 5 denotes 1985 which is the year when the block was revised, the 0 in 200 means 1990 and so on.

The 202 block was indeed a Transit block but it isn't as strong as a 200.

Before such times the block was simply a 20 or T88 block.

In the same way you can have a 165 block but obviously a 1600 Pinto.

Martin

 

As far as I know:

2WD = 205
RS500 = 205 (bit stronger as the standard 2WD 205)
4WD = 200 (the strongest of all blocks and best for tuning basis)

 

The RS500 "205" IIRC was actually a little loop hole in the design process and was made specifically for the 500, it's just they kept the designation number the same, it's actually a different cast as said and is much stronger than the 205 (They had to be for the power they run).

Martin

 

Thx for info m8. Is my assumption correct that the 200 block is the strongest of all? At first I thought the RS500 was the strongest.

 

The rs500 205 block can be long studded unlike 205 normal blocks, rs500 is I understand basically a 200 block

 

is there anyway that determins a RS500 205block from 2wd 205block?

 

Yes it should have YBD cast into the block by the water pump I should think, a normal "Cosworth" 205 will have YBB followed by a number. Also YBD (RS500) 205 has smaller core plugs as well.

Martin

 

As above trist, just the small core plugs is the easiest and quickest way! They're very small compared to normal