i was wondering if there are any differences between the two. are they a direct swap for one another? (btw, this is for a skunk2 gsr manifold) is there any difference is bore size? i searched the archive and found a lot of conflicting info (56-62mm). can anyone confirm this info for me? TIA

 

anyone?

 

Back from the dead.

I also want to know. I have an LS now but I am swapping in an LS/Vtec with B16 head and JG IM for the B16 head. Not excited about running the LS TB.

Size of an H series TB?
Interchangable with B series?

 

pretty sure its the same, cause my skunk2 is interchangeable, with h b and d

 

Alright, found this:

Honda Throttle Body Sizing Chart
By: tortex (tortexal@yahoo.com)

Honda/Acura Throttle Body Inside Diameters (in mm)
b18c1 60
b18c spec R 62
b18a 58
b18b 60
b16a SiR 58
b16a Sir2 / b16a2 60
b16a3 58
b20b/z 60
f20c 62
d15b7 56
d16a6 55
d16y7 56
d16y8 56
d16z6 56
ZC 55
d16a1 55
d16a8 55
h22a / h23a 60
f22 / f23 60


So maybe a 2mm difference ... prolly not worth the time.... guess a mustang TB is what I want ...


Modified by jfoster at 2:42 AM 8/11/2006