I found a big head on my wastegate so I gotta wonder about the exhaust housing.
I did a search and can't find what the casting number(s) are for the 14cm2 hot end. Thanks for any light shed on this.
Does the big head mean I don't have to use the whistlin' elbow? Thnx again.

 

I am only totally certain on a 12 valve but if you have a Banks Bighead it's on a 14cm housing.
The Bighead and housing preforms the same as what you read about when people drill out the web between the two sections of the wastegate portion of the turbo.

 

I dont know the casting numbers but my banks14w housing has "14" inscribed on the inside walls of it where attaches to the exhaust manifold

 

Thanks for the info, yep it has a banks bighead sticker on the diaphram and a sticker that says quick... can't make out the rest, on the bracket. I found that 14 number by itself on the housing with some other numbers nearby.
again, thanks for the info