i have a LS/VTEC, B18B1 block with a B16A2 head, i also have the Z10 main cap girdle which required me to use a GS-R oil pan...so now my DC 4-1 header for the B16A hits the oil pan and wont sit flush on the head.

Any ideas on wtf to do????
TIA

 

Does the B16 block have a shorter deck height than the B18B? My guess would be to use a TypeR header. That has room for the thicker pan and the B16 head is basically the same at the R head. Motors like yours are getting common, check suppliers for what they recommend.

 

yep b16 block is shorter, get a new header

 

so what kind of header to cat-back issues will i face with a GS-R or Type R header?
i have a 94 civic coupe, i know that the B16 header is the perfect match up but i cant remember if you have to shorten or lengthen the exhaust piping to make an Integra header work.

 

check this out: