4G67 1.8l the same like 4G63 Block?

[Glatto]

Hello

I have a question. Is the 4G67 1.8l the same block with the 4G63.
I want bore of 85.5 and used my head and the 4G63 crankshaft.

I want run 42 psi and around 1000 whp.
At the moment had the car 900 Whp now i want a little more

 

[bryanwheat]

The 4g67 has the same stroke, but a smaller bore. The 4g63 is a 85mm bore, the 4g67 is a 81.5mm bore. Basically same crank, but smaller bore.

 

[Glatto]

It is the same block, he can handle 42 psi boost when i bore of 85,5 mm?

 

[bryanwheat]

It is the same block, he can handle 42 psi boost when i bore of 85,5 mm?

What do you mean?

 

[Glatto]

If it the same block, it isnt a problem to bore 85,5 it. I`m a little bit frightend if bore bigger and a many boost.

My ols blocke 4G63 6 bolt have not a problem with this boost.
Some people says it is not the same block, because of this my question.

 

[bryanwheat]

Did you read my reply, it isn't the same block, it is a smaller bore, and a slightly shorter deck height. You likely will not be able to bore it 4mm larger, that is quite a bit. I would just look for another 4g63 block.

 

[Glatto]

Thanks for the answer. I search better a 4G63 it is save.

 

[ColtiXim]

4G67 EU bloc has the same deck height like the 6 bolt 4G63, he has also oil squirter and knock sensor.
Bore it to 85mm is not an problem but it need an torque plate for best results in my mind...

 

[Glatto]

It is now the same block! What do you mean with a torque plate?

 

[ColtiXim]

This thing : http://www.jmfabrications.com/store/products/4G63-Torque-Plate.html

 

[Glatto]

Thanks. Have you with this plate the same compression? I have this not understand?

 

[ColtiXim]

Look this thread for better help : http://www.dsmtuners.com/threads/torque-plate-non-torque-plate-need-builders-input.434680/

 

[Glatto]

Thanks for the link.