heres the deal i have a b18c5 block , and i have 2 heads gsr , and a b16 ..both have aftermarket manifolds, i have been hearing good stuff about both, but yet i am still undecided. its going into an eg ,gsr tranny also...i need advice and opinions please...what would u do?why? i want the best performance .more than likely all motor... Thanx for the help TR

 

either one really. It depends on what valvetrane are in the them.

 

gsr head.

 

gsr head will yield higher comp which yield more hp then the b16

 

gsr head will give u an extra .2 compression, which is what vtec likes. the more compression u run the more ur gonna get outa the race cam that kicks in at 55k. everyone says that the b16 flows better, but ive seen the flow charts and theyre very similar. my advise, gsr ftw! especially if u got an aftermarket manifold for it.

 

thanx for the comments guys....im leaning toward the gsr head .....

 

ditto. GSR head. that extra .2L helps.

 

id say b16 head. just me though..

 

i would go with the B16 , thats if you plan on running stock port job....gsr does yeild more compression though.

But think, there must be some reason why the R motor's utilize a b16 head casting.

 

r motor uses the b16 casting. theres no doubt about that....but they also have WAY better pistons (11.5:1 comp in jdm form) and have been re worked from the factory as far as ports. they have a better intake mani and header and exhaust. u cant compare the r motor to the rest of the b series motors. just bc they have the same casting doesnt mean that that casting is better. stock for stock, b16 vs gsr, the gsr makes more power. period. end of story. if u dnt believe me, go to ImportReview Re-direct n check the dynos n comparisions n stuff. cant argue with a dyno chart.