Where I can buy cosworth ybb 200 block new or second hand? as the 205 break out!

 

Surely someone can help this guy out??

I've got 20 sat here... alongside my dinosaur eggs and rocking horse excrement

 

as far as i know if its on a 2wd it makes no odds as to whether you use a 205 or 200 block for decent power??

 

If that is the case - why has his 2wd one broken ?

4x4 blocks are stronger and will be a better base for big power. Unfortunately there were some 4x4 blocks floating around that Cosworth had made in Turkey that are not up to the strength of the original blocks, hence why even the 4x4 ones started to get a bad rep for cracking.

 

i'm sure i read a similar thread on here discussing the 200 and 205 blocks and people stating theres little difference, if its not attached to 4wd sump/tranny etc?

i'm just curious....i am not clued up on this

 

[quote="Mike Rainbird"]If that is the case - why has his 2wd one broken ?

quote]

maybe he used it on a 4x4

 

Ehh everybody knows that 200 are stronger and that's why ford made them to replace the old 205 as they where origanaly inteded to be used on pinto's ! The 205 just cracked from the bore just after runned in the quarter mile 10 runs with 26psi on a T4. apriciate anyone who can help a second hand 200 will be fine as well. Thanks

 

I do have one rebored with new je pistons and reground crank Ł1000 inc shipping

 

How is it possible that no one in the uk is not interested in making 200blocks with maybe stronger casing????!!!! If cosworth stopped making them someone else should take over!

 

Because the wankers at Ford destroyed the moulds , so Cosworth would have to reverse engineer all the moulds etc, and this has been costed at Ł300k for just a run of 200 at COST to Cosworth. This works out at Ł1,500 a block. Obviously they're going to want to earn something out of it, which would mean cost to customer of at least Ł1,800. Who is going to pay Ł1800 for a standard block, when you can Nikasil liner a second hand one for LESS?

Accordingly there is no intention what-so-ever at this moment in time to remanufacture the 200 block .

 

There's that new ally one for 4.5k isn't there??

 

People have all sorts of opinions on the matter.

Some say its actually larger around the bores, others say its just cast thicker around where the front diff would bolt on.

Karl Norris has apparently done some extensive research into it which is why he doesn't use long studs iirc

I personally would like to see some actual proof of what the differences are.

If the 200 is no better than a 200 block then why bother fitting Nikasil liners into a 200 when you can save yourself Ł800 and put them in a shonky old 205 block ?

 

Yep I bought one made in Turkey & it proved to be weak, warping on the Dyno at a mere 741bhp/644 ft-lb. By the way the Turkish blocks have 99 cast on the side if you want to know if you have one.

 

Where abouts is that cast into them mate ?

That wasn't the last engine was it mate

 

Just noticed a 200 block for sale on here...

https://passionford.com/forum/viewtopic.php?t=292388

Mart

 

the front diff does not bolt to the block though.

 

To quote norris motorsport i think that this answers the question

The 2.0 16v YBB engine has been around for sometime now and was available in several different forms as the years went by. (Designated, YBB, YBD, YBP, YBT, etc) There are certain cylinder heads that are preferable to use over others due to their increased stiffness and improved water ways, and NMS can advise the best route to follow. Likewise the earlier YBB engines used a "205" block derived from the 2.0 Pinto. This unit is capable of handling up to 350bhp but this is dependant on block casting quality (i.e. due to core shift) and bore size (i.e. the block is weakened by overboring). When I specify a 300+bhp engine I always advise the use of the later "200" block which incorporated additional reinforcement around the block sump face webs and block bore casting as well as some other minor block revisions.

 

Stu's words iirc, however I have been told otherwise so I don't know who to believe

Funny as everyone seems to be very secretive about it, a bit like when my engine turned out it had a cracked block a few thousand miles after being built, no one wanted to say it was built wrong where IMO it clearly was.

I can't see how else a block can fail across a bolt hole except for the ARP's as Mike has mentioned.

Back on topic though, with all the so called knowledge on here nobody actually seems to know what the differences are with the block

 

So what Karl says then goes along with what I was told about the bore casting.

What Karl said about long studs was interesting although that is a different matter.

 

I did'nt catch what karl said about the long studs can somebody elaberate please

 

I'll try and find the thread, it did go a bit off topic though, as usual

 

https://passionford.com/forum/viewto...800&highlight=

 

how old are the turkish blocks?

My block was brand new about 2 years ago.

I will need to check the cast on the side...

 

cheers jonny bravo

 

No problem

Just had read through again and its a shame that the thread went the way it did as clearly Karl knows something that a few others would rather not disclose (sp)

Still going to long stud myself as its not gone wrong for anyone else but I will ask my tuner about what Karl has found out

 

My buisiness partner runs 400bhp on his saph with a 205 block with standard head bolts and its run like this for about 9 years and it was built by castle performance back in the day

 

It really does depend on how the car is used - 400bhp on a 205 block driven sensibly will last no problem. I bet it would last a matter of weeks in my hands though .

 

Mine does

 

99 like on the bottom left corner of mine

 

Yeah thats where mine is at the end of that 5 digit code i believe it is, if that be the case theres hope for me yet then

 

But at what power are they 'weak' ? Rods power level is quite extreme

 

I wouldnt worry til i hit 741 bhp

 

Yeah thats what i thought i wont be running anywhere near that

 

Rod broke runing MEGA torque, I would worry to much about it unless i was running a similar spec.

who else knows of breakages?

 

Mines in the same place to, even has the red marker on the top left

We will have to keep any eye on rapidcossie's and use his as the test mule

Saffsta - what power are you running ?

 

Nothing yet but im aiming for a good spec

 

Ehh thanks for the help, I just found a new block with unfinshed bore and hope that I don't find that 99 on the side!

 

Euan - Rod isn't the first to have problems with the crap blocks.

They fail in different ways from what I have been told.

One that I know my enegine builder had seen had torn the front of the block off around the water pump, like TiB's but his wasn't a crap block.

 

will need to keep an eye on things then

 

Mines identicle to Rods that let go on the dyno ( Nakasil liners), only mine has done numerous 180+mph runs and 5k miles before being linered. Rods was a brand new block.

Oh, and mine did 701.5 brake and 576.6lb-ft