i`ve seen a few of these lately a 1.8L vtec head (gsr head) on a b16a block... what is the signifigance of this ? what is the purpose ? what does it do... i would think it`d lower compression and rob the motor of power at higher rpms.. does it do something different ? i could see it adding torque mabye because of the plentium and maybe allowing more air flow.. but, again, what does it do ?????

 

Actually, it would raise compression.

 

more quench, lil' more compression and the benefits of the dual intake runners