Im trading for a 94 eg hatch cx with a b20b4 swap, 2k si tranny, exedy clutch kit, lighten flywheel, AEM fuel rail, AEM tru time cam gears, DC header (4-1) lowered on skunk coils enkei mesh wheels. I want to start building this this right off the bat, by making it Vtec, what would be the best vtec head for me to get, and ecu?

 

please search. this subject has been covered extensively. there is no perfect ecu for that motor you'll need to get a custom tune. a gsr head might be more ideal for a b20v as it bumps the compression slightly, but it's all up to you.

 

b16 head dur

 

gsr

 

ive never used a B20/Vtec but ive had LS-Vtec w/ B16 head, a friend had one with GSR head.

I found the B16 to be better on an LS block... Vtec seemed to be more aggressive with the B16 head

But it may be different with the B20 block

 

b16 heads flow better, doesnt matter b20 block or ls b16 is better period

 

Thanks for the info guys

 

Get a type r head which it's already been mild port on the intake side plus if your getting the whole head it has dual valve springs on the intake side + itr cams.

 

B16 head flow's better and similar style to type-r except without valvetrain and cam of course. GSR will raise compression but not as good as flow.

 

I want to eventually do a turbo, and I have heard that b20 blocks are like paper thin and prone to failing, with this issue apparent, should I avoid going high compression rods and pistons? Or if I sleeve the block will that protect it?

 

heard that arp rod bolts help with the thin walls

 

arp head studes dont help with that, but i've known of built b20v motors lasting for years with stock blocks and built heads runing 13's, atleast swap the pistons to raise the comp to 10.1 and you'll be fine for a daily

 

rod bolts, not head studs

 

Picking up a gsr head today, but I want to up my internals for more hp..... any recommendations?

 

arp rod bolts (9mm). you will need to get your rods resized to compensate the torque required. DO NOT rev past 7500 will stock rod bolts. Up- ing the compression will also help power wise.

 

rod bolts and head studs are the same thing, the only thing that helps with thin walls and sleeves

 

touche lol

 

gsr head for bump in compression. and pnp if u got the dough

 

What??? Rod bolts and head studs are the same thing did I read this wrong???