It's a 83mm bore block with an endyne gsr head. Do u guys have the chamber opened up to the to the bore size. Some say to do it some say don't. Just wondering what you guys think

It's a 72mm turbo setup

 

Isn't the GSR a "square" chambered head...

Which means it would be a moot point...

 

It is square but will the sides matter....there will be a over hang of 2 mm

 

it should be open to deshroud valves...

 

If you actually measure it is a bit bigger than 81mm. But it should be atleast opened up a bit

 

Sounds good. That's kinda what I had in mind. Thanks guys

 

Ask the real cylinder head gurus. Not techies....

 

i like to deshoud to the same cyl bore, however i never had an issue not doing it either. i actually think it seals better. but who knows its all preference

 

I have.......what would you do ?

 

I went with what my cylinder head guy (Brad from RLZ) recommended. I had it opened up to 84mm.

It depends on what your doing with pistons and your CR as well. There is a lot to think about when making this decision. Just make sure you cover all the angles.

 

Sounds good......Iam gonna open it up