91 2.1dohc on 93 2.3 block
mgd2583
03-08-2004, 03:08 AM
hi everybody im new to this so please bear with me. i recently purchase a 1993 prelude with the 2.3dohc with a bad head. i was on e-bay an purchased what i thought to be the right head but in the excitment i was wrong. it is a 2.1dohc h23. the head thats on my vechicle is a h23a. i have not received the head yet but its on the way. i looked at the pictures of the head an the on difference i see is really the thermostat housing. i need help thanks
AcesHigh
03-10-2004, 11:32 AM
It's not an h23 head then. The '23' in h23 represents its displacement.
W-44Olds
03-13-2004, 01:04 PM
Hmm problem.
91 2.1 dohc was a B series non vtec motor. The 93 h23 was a non vtec dohc. The I know those 2 motors share the same rods. But I really don't think the head will work. If you had a 88-91 b20a5 or b21a1 I feel it would work fine.They were the 3rd gen prelude Si motors. Maybe some others can help you out more on here, sorry for the bad news. I guess you can take the h23 head gasket and lay it on the b series head and probably see a huge difference.Sorry about your luck i hope it gets better.
91 2.1 dohc was a B series non vtec motor. The 93 h23 was a non vtec dohc. The I know those 2 motors share the same rods. But I really don't think the head will work. If you had a 88-91 b20a5 or b21a1 I feel it would work fine.They were the 3rd gen prelude Si motors. Maybe some others can help you out more on here, sorry for the bad news. I guess you can take the h23 head gasket and lay it on the b series head and probably see a huge difference.Sorry about your luck i hope it gets better.
flylwsi
03-13-2004, 02:05 PM
yeah, if you've got a sohc, you've got the f22b.
same as the accord motor...
there's no dohc head that will bolt on, and the b20 stuff definitely won't...
same as the accord motor...
there's no dohc head that will bolt on, and the b20 stuff definitely won't...
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