crowedogg

New to this forum, i have an engine question for you guys. Im looking into possibly doing a b20b JDM swap in my 99 integra. To get an engine with these specs,99-00 JDM B20B 9.6:1 PHK pistons rated at 146hp, what are some things to look for on the outside of the engine besides a knock sensor. Thanks for the help.

accorse07

You could check the Manufactured date stamp on the head. Should read 9/8 or later. Only 99-up B20's came with a knock so that is obvious one.

Are you concerned as to which head you get with your JDM block? P75/P8R

crowedogg

actually not sure which head is on them. I know that some have a taller intake with silver box on top. Mainly just want to make sure i get a jdm b20 instead of a usdm 97-98 b20b im purchasing offline if i go this route thanks for the info.

bks84

iTrader: (9)

if its usdm itll have a 5th character. if its usdm the code will be b20b4, if its a b20z it should be b20z2, i believe. eitherway, usdm engines have five characters.

90efhatch

https://honda-tech.com/forums/all-motor-naturally-aspirated-44/b20-non-vtec-faq-guide-including-p8r-head-information-1467903/

EsotericImage

iTrader: (8)

the lower compression ones will have a P3F stamp near the oil pan flange on back side also.

crowedogg

thanks guys for the responses and thanks 90efhatch i did not see that thread yesterday looks like thats all the info i need and if i read correctly the P8R head is better.