well i was runnin a B20 Block /w an LS head and i believe and LS intake manifold. then i baught a motor from HMotors a JDM B18B LS motor. then i take a look at the intake manifolds and they are different. the throtle body is different too. we wanted to change the TB and swap em b/c the HMotors one was not as good?. but on the actual Head the Motor from HMotors says pr-3 and the head from my B20block says pr-5 ? i cant remember the numbers ontop of my head but they are different. does anyone know what actual intake manifolds are on both of my engines? here are some pics if it helps.. also i look on the block or head and i see the year and the HMotors one says 9/0 and the B20 one says 8/0.?

heres the HMotors one i believe its an Automatic b/c of the pressure plate.

heres my B20block with an LS head with a newer valve cover

 

friend whos helping me with the swap is tellin me to use the TB of the one that was on my b20 and he said the design of these 2 TB's & Itake manifold is different .

 

That is an older valve cover from the 90-93 B18A's. It might have been swapped or in japan they kept the older valve cover design.

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