kr and 9a heads

[superhans 0]

Could someone tell me what is difference is between the kr and the 9a heads?

[Riley 0]

not a lot. :)

 

the 2.0 head just has a little more metal to either remove or shape diffarently.

 

neil.

[coullstar 0]

And the cams.

[Riley 0]

oh aye,kr uses an inlet cam with more lift. :)

 

neil.

[Kevin Bacon 5]

Apparently changes were made to the cooling galleries as early KR heads had a defficiency in this area.... dunno if it's true or not. Just something I 'picked up' over the years.

[GazzaG60 0]

so whats the best option.

 

ported 9A with KR cams?

[Riley 0]

so whats the best option.

 

ported 9A with KR cams?

 

id go with that m8,on a 9a bottom end?

 

neil.

[GazzaG60 0]

anybody got a 9A for sale?

[davidwort 0]

Apparently changes were made to the cooling galleries as early KR heads had a defficiency in this area.... dunno if it's true or not. Just something I 'picked up' over the years.

 

saw a cut away of the two heads on a US website, can't remember where :(

 

..the 2.0 heads have additional water channels between the inlet ports, which have to be avoided when porting the heads! Can't see it makes much difference though, perhaps the 2.0 heads may be kept a bit cooler, but never heard of any problems using 1.8 heads on highly tuned 2.0's or turboed engines.

 

David.

[bristolbaron 10]

http://www.clubgti.com/forum/forum_post ... 52550&PN=1

 

look here!