number on head

[00 racing]

Can anyone tell me where the number is stamped on the head. Wound like to swap heads around but not sure where number is on head .

 

[8secHonda]

look right above the exhaust manifold.. it should have some kinda stamp like pr-4 or smthn else..

 

[00 racing]

What is the best kinda head to have on a b18a1 if were to swap heads around?

 

[8secHonda]

well if u wanted vtec a b16 seems to be popular.. but if u wanna keep it simple get a b18b1 head and cams.. the b18b1 had more lift duration than the a1, i also have a b18a1 and am putting a b1 head on mine and the b1 cams.. im sure there is other ones that may be better though..

 

[00 racing]

will the b1 head give you more horse power and tork than say a pr-4? I gess what im trying to do is put something together to make more power and tork.

 

[8secHonda]

yeah the pr4-5 head and cams are better it will give u torque and hp increases.

 

[00 racing]

Will it bolt right on with no mods to it.

 

[8secHonda]

yep it will bolt right up w no probs. the ba8b1 came in the 93 teggys not much difference but the duration lift was increased and it had i think 10 more hp..

 

[00 racing]

so im looking for 93 integra with a pr4-5 stamped on the head and thats the head and cams i wont that you are talking about to gain that extra power? if i did this head swap would it be considered a FRANKENSTIN motor? Thank you.

 

[D16SiHatch]

frankenstein'd? hardly. your just putting a newer ls head on an ls. not a big deal at all. if you were doing an ls-vtec build then sure that term might be more appropriate.

the b18b1 was not in the 93 integra. first year for a b1 was 1994, and they continued till 2001.

although it is an improvement, i wouldn't expect a huge gain. it also depends whether the engine you started with was a 90-91 or a 92-93 because they were rated differently. so if you have a 92-93 engine then doing this swap soley for a power increase is really not worth it.

Power: 90-91 Only: 130 bhp (97 kW) @ 6000 rpm & 121 ft·lbf (164 N·m) @ 5000 rpm
Power: 92-93 Only: 140 bhp (100 kW) @ 6300 rpm & 126 ft·lbf (171 N·m) @ 5000 rpm
Power: 94-01 Only: 142 bhp (106 kW) @ 6300 rpm & 127 ft·lbf (172 N·m) @ 5200 rpm

 

[00 racing]

Oh sorry all new to this stuff.Just trying to make more power out of what i have to work with.

 

[D16SiHatch]

i know what you mean man, nothing wrong with that lol. but atleast now you know. if you have a 90-91 engine and can get a b1 head for cheap, then by all means do it.

 

[00 racing]

I looked throw all my motors i have and found the head with pr4-5 stamped on the head and the cams are a b3 i think. The head that in on my race car now is a pr4. Is that the head i wont to to better my self. thanks.