B16 and B18 Exhaust Manifold on a B20a

[WhiteKight]

Hello to the world of Honda Performance Upgrades.

I have a 1990 3rd Gen Prelude - Stock as a rock

Does anyone know if it is possible to mount a B16 or B18 vTec exhaust manifold onto a B20a head ?

This will give me a few option for horsepower increases on a resonable budget

[Bludger]

the B20 in the 3rd gen Prelude is not considered part of the B series family (b16a, b18c, etc.).

I don't think it will fit.

[WhiteKight]

I know there is no difference between between any b16 and b18 exhaust manifolds ( inlets are mostly not interchangable )

Reseason for asking is a friend at a local wrecker has a Trust manifold to suit a td03 or td04 (mits EVO turbo ), odd intercooler pipes and dump pipe off a b18. I will be able to get it on the cheap and already have an piggy back ecu to run the show >>> Turbo here i come for cheap.

HELP ME PLEASE

[Bludger]

It won't fit the 89-91 prelude motor.

will fit the crv based b20's though. (b20b & b20z)

[WhiteKight]

here is a pick of a 3rd gen manifold. Has anyone got a pick of a b18 manifold so I can compare

http://i53.photobucket.com/albums/g63/seantydingco/LSDTurboParts003.jpg

http://i53.photobucket.com/albums/g63/seantydingco/LSDTurboParts001.jpg

http://i53.photobucket.com/albums/g63/seantydingco/LSDTurboParts007.jpg

[WhiteKight]

This is a pic of a b18 exhaust flange ... looks same to me

http://advancedstreetperformance.com/img/hardware_bturbo_flange_lg.jpg

Pic of a B20a exhaust flange

http://image50.webshots.com/550/2/51/58/2304251580084712684EtaMGO_ph.jpg
BUT !!!!!!!!!!!!!!!

a H22A head looks the same too

http://www.ssautochrome.com/level.itml/icOid/images/Picture108_c.jpg

[WhiteKight]

Has anyone in Melb got a manifold off a B16 or B16 sitting around so I can make a cardboard template > Six Pack for your time

[WhiteKight]

My research has come to a end. It is still a mistery if the B16/B18 manifold will fit BUT ..............................

a H22a manifold can be reworked to adapt.

http://www.3geez.com/forum/showthread.php?t=68172&highlight=b20a+header

This is proof and a mega cheaper way to buy tube headers and turbo exhaust manifold than having to have a custom one made. I will be ordering a cast H22a/T3 manifold this week end.
This is the one I am look at ($120.00 USD + $50.00 postage)
http://www.toysauto.co.uk/images/350116287463.JPG