block strength

[xjjunkie]

on the scale of weakest to strongest, rate these blocks---t1 block,t2 block,tall deck,common block. steel main caps will be used.

thanks,
scot

[gakali]

Non-common, common.

[turbovanman]

BTW, someone on here used steel main caps in a non-common block and the block still flexed, so there pointless! Spend money elsewhere!

[tonyz2897]

Anybody ever fooled with the idea of making a stud girdle for the non cb engines to stiffen things up a bit?
Simon, sorry to see that about #1.
We're going to take the Daytona to the local 1/8 for the first test and tune tomorrow evening so I can get an idea of what I've got to work with.
Tony

[89acclaim]

I don't know this has the same number as the tall blocks...... Check Out This Block!!!!!
I gess you are trying to see how the tall block is compared to the common block?

Daniel Merrill

[DirectConnection]

Quote:

Originally Posted by turbovanman BTW, someone on here used steel main caps in a non-common block and the block still flexed, so there pointless! Spend money elsewhere!

Please tell us more about this?

To the original poster... a T-I block is no different than a T-II block and even a N/A block (non-turbo) casting and strength-wise.

[turbovanman]

Quote:

Originally Posted by DirectConnection Please tell us more about this? To the original poster... a T-I block is no different than a T-II block and even a N/A block (non-turbo) casting and strength-wise.

I remember reading about it on here, the block still flexed and binded up the crank. I have no idea how to find it or where I read it, doh!

[Turbo Charger]

Quote:

Originally Posted by DirectConnection Please tell us more about this? To the original poster... a T-I block is no different than a T-II block and even a N/A block (non-turbo) casting and strength-wise.

Huh? I don't know if that came out wrong or what.. but the 89-up common blocks are the strongest. The 84-88 T1 and T2 blocks are about the same strength. Nothing else is worth considering imo.

[DirectConnection]

Quote:

Originally Posted by Turbo Charger Huh? I don't know if that came out wrong or what.. but the 89-up common blocks are the strongest. The 84-88 T1 and T2 blocks are about the same strength. Nothing else is worth considering imo.

You simply mis-understood what I was saying. I never said I was comparing early blocks to the common blocks in my post. I was comparing T-I to T-II and even the N/A blocks as he asked about the strength differences between a T-I and T-II and early and then common blocks.

So... early T-I/T-II/ and N/A blocks were the same castings. Just had extra machine work done to them for coolant feed line and half shaft bolt holes, etc. (btw... were the early T-II blocks like on an '87 Shelby Z cross-drilled? I can't remember anymore)

Common block 2.2+2.5 T-I/T-II/T-IV and N/A were also the same castings but with provisions for the extra machine work for turbo application *and* cross drilled. T-III blocks were cast in Mexico and are told to be of superior quality and material. Rumor is that 90+ or '91+ T-I and N/A blocks were cast there, too, and are also of superior quality. Anyone confirm this?


So... if the above statement is true... then I'd be looking for a block out of a '94 N/A Shadow. Another rumor is that the last year or two of the 2.2/2.5, they were cross drilled like the turbo blocks were as they were using up their stock. I seem to forget alot of things, and cannot seem to remember if this
is true as I've seen many '93-94 2.2 blocks at the yard I go to.

[DirectConnection]

Forgot to say in my previous post that all of the 2.2/2.5 blocks I have ever heard of cracking were of the 1989 Common block vintage. Personally, if building a high output 2.5 (400+ftlbs), I'd stay away from that year.

[turbovanman]

Quote:

Originally Posted by DirectConnection Forgot to say in my previous post that all of the 2.2/2.5 blocks I have ever heard of cracking were of the 1989 Common block vintage. Personally, if building a high output 2.5 (400+ftlbs), I'd stay away from that year.

Yep, my 2.5 CB cracked in the rear coolant jacket, still can't figure out why,

[DirectConnection]

Quote:

Originally Posted by turbovanman Yep, my 2.5 CB cracked in the rear coolant jacket, still can't figure out why,

That's where I hear they crack. Gus ran his like that for some time using what he called a cold stitch for a while.

[Turbo Charger]

That's interesting info. Thanks. I'll stay away from the 89 CB I was going to build.

[turbovanman]

Quote:

Originally Posted by DirectConnection That's where I hear they crack. Gus ran his like that for some time using what he called a cold stitch for a while.

Yeah, thats what I had done. So far so good but doesn't matter anymore, have another block going in of unknown vintage!