Replacing B16A block with a B20 keeping the head of the B16A

[mok]

I have a B16A2 engine came stock on my EG6 1992, I want to replace my block with a B20Z (CRV), what parts should I change? I want to keep my B16 head obviously
Can I keep everything the same, engine mounts, transmission, clutch ,axles

 

[ryanM]

yes you keep everything the same, just swap the bottom end

 

[Ls-HatchBoy]

everything is the same, cept you need to get a special head gasket kit, and tap the head

 

[defvayne]

everything is the same, cept you need to get a special head gasket kit, and tap the head

yup there is a kit you can purchase from Honda-T**ch.com search it up.

 

[Billy.]

uhh, i dont know bout everyone elses, but my b20vtec needed fuel management. pressure regulator and vafc2 to get the AFR in the green zone

*EDIT*
i recommend if you going to do a b20 bottom, build it for higher compression unless your plan to boost. the vtec head likes more air pressure, else it will stop making power in the low 7k rpms and you wont expect to see more than 165whp stock.

 

[ryanM]

uhh, i dont know bout everyone elses, but my b20vtec needed fuel management. pressure regulator and vafc2 to get the AFR in the green zone

*EDIT*
i recommend if you going to do a b20 bottom, build it for higher compression unless your plan to boost. the vtec head likes more air pressure, else it will stop making power in the low 7k rpms and you wont expect to see more than 165whp stock.

why did swapping blocks change your air/fuel?

 

[Billy.]

why did swapping blocks change your air/fuel?

you tell me. but it did, it ran lean past 6k rpm

 

[ryanM]

you tell me. but it did, it ran lean past 6k rpm

that sounds like an unrelated problem to me, swapping bottom ends shouldnt change your a/f at all, thats controlled by the injectors, throttle body/intake and ECU.

 

[defvayne]

that sounds like an unrelated problem to me, swapping bottom ends shouldnt change your a/f at all, thats controlled by the injectors, throttle body/intake and ECU.

i guess you have to get the ecu tuned.

 

[Billy.]

i guess you have to get the ecu tuned.

...that or use piggyback hack vafc

 

[DAF]

You can use the LS/Vtec conversion kit for it. All a b20 is, is a 84mm LS block basicly.