ya i just got this b20a5. i have neva seen anything like it. i want to put a b16 head on it but now i dont know if it will fit. i weld n this really isnt my thing.

help

 

old prelude motor. it has such a long stroke, its not worth using.

 

Yep, that is in fact the 3rd gen prelude motor (88-91). It is know as the bastard b series motor from honda because of its jacked up rod/stroke ratio.

 

also, I don't think that the b16 head will even bolt to that block

 

it wont bolt up. the motor is a pos.

 

well the head bolts on BUT i got some holes showing. 2 holes hang over the front of the block. anyone know what holes they can be? i just might weld them shut if i dont need them.

 

oh ya it came wit a tranny can i still use it on another block? like a b16.

 

its possible to put a b16 head on it but its not a "real" b series engine on most regards..

 

ive heard of ppl swapping the crank to increase the stroke

 

It was also the most succesful Formula 3 engines. What made it a crap street performance engine was exactly what made it a great F3 engine.

 

its a pieace of ****. dont weld the head on dont waste time or money. this will do nothing but make u feel dumb in the long run after you have welded the head on the block and doesnt work. save your money and jus get a b20b/z block. this motor could be used as a good paperweight if u need it.

 

there was a guy who sucsessfully did a vtec head on the b20a5, but this was years ago

 

ok block is trash.
how about the tranny????????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EFIOZ &raquo;</TD></TR><TR><TD CLASS="quote">It was also the most succesful Formula 3 engines. What made it a crap street performance engine was exactly what made it a great F3 engine.</TD></TR></TABLE>


how so?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkRiBLaH &raquo;</TD></TR><TR><TD CLASS="quote">old prelude motor. it has such a long stroke, its not worth using.</TD></TR></TABLE>

u think i could use this crank in another block?

 

yes, with some machine worked done you can have a 98mm stroke in a regualr b series motor

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I-weld &raquo;</TD></TR><TR><TD CLASS="quote">u think i could use this crank in another block?</TD></TR></TABLE>

 

oh n this is not no daily driver car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EFIOZ &raquo;</TD></TR><TR><TD CLASS="quote">It was also the most succesful Formula 3 engines. What made it a crap street performance engine was exactly what made it a great F3 engine.</TD></TR></TABLE>

Wrong motor. That B20 motor was a rare 2nd gen Prelude motor from what I understand. 160HP. The 3rd gen prelude B20A5/B21A1 motors are piles of crap. I know, I had a 3rd gen for years and a pile of those motors. Never made any decent power until I went FI with it. Also, the thrust bearings are on a different journal than the other B series motors. Bleh, there is nothing good about them.

 

sell it on ebay for a few bills, add another 200 and youve got yourself a b20b long block.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chrisb &raquo;</TD></TR><TR><TD CLASS="quote">Wrong motor. That B20 motor was a rare 2nd gen Prelude motor from what I understand. 160HP.</TD></TR></TABLE>

Sounds like the JDM B20A. This motor is basically a A20 3G Accord/2G Prelude motor with a DOHC head (I think it even has the iron block). It is somewhat sought after by 3G Accord people looking to do a swap, since it is a direct drop-in for that car.