what size collector at end?

EDIT: Also, designed for 2.0L displacement, but currently still @ 1797cc (stock c5 block). Hoping to keep bottom end basically stock and build up the head, but reading up more on stroking so we'll see. As far as it being for 2.0 liter, any drawbacks to it being on a 1.8?

 

Drawbacks might be a little less torque at lower rpm's. This header is designed for a motor that can flow very well upwards of 11,000 rpm. Probably would not be good for track/roadracing/autocross. Best for drag racing. Being 1.8 won't make a huge difference, but if the head isn't professionally done to flow over 280cfm, then it will. The lower flowing head you have the more displacement you would need to keep up. I will measure today but I beleive it is a 3 bolt flange 3" collector.

 

Got a b16 SiR head getting professionally ported out and 5 angle valve job. I think 3 inch would be too big for my application, but could a 2.5 inch collector be welded on in it's place at a muffler shop?

 

sure

 

Still for sale!

 

Stillllll for Sale!!!!