sportinawoody

i need help finding info on putting a vtec dohc head on my earlier b20a5. i do h22 and b18 civic swaps etc regularly but i want to spice up my stock prelude. i know this has been done and been told there is an oil pressure issue with this swap but can find no info on the web for this swap. can someone point me in the right direction

bigboy420

contact golden eagle they have a vetec conversion kit

whtteg

The only thing that I can think of that might be different form any other LS/VTEC or B20VTEC is that you might need to upgrade the oil pump. I can't think of anything else. I am pretty sure that the B20a5 is basically the same as the B20B and B20Z except that the B20a5 sits on an incline in the emgine bay.

Do some searches on B20/VTEC or B20VTEC etc and you will most likely find your answer.

__________________

bigboy420

well there is no difference in the b20, but if he is going to put on a vtec head he will have to have a oil feed line to the vetec soleniod. Also he will need a gsr water pump. Get the conversion kit it saves alot of headaches

sportinawoody

appreciate the help. ill check into it

sportinawoody

all im concerned with is fitment and oil circulation from block to head. can anyone with experience in this matter shed some light. i dont have a block to match but ive seen stock and b16 heads side by side and the only possible problem i saw visibly were 2 1 inch oil run off holes on the front of the b16 head.

bigboy420

the head will fit to the block as long is a b head and a b block there will be no problems

rosshatch89

misguided information the b20a5 is the red headed step child of all hondas nothing works except its own parts the heads will not line up i owned one for about 2 months and did alot of research and its a big waste of time and money i would suggest buying a diferent car honestly i cant think of where to go except www.preludepower.com but thats the only site i can think of