[Parry]

My question is, what's difference between an A block & B block?

[shandy92]

not a whole lot mate, i think there is a little bit more casting and webbing on the g16b.

what are you planning????

[Parry]

I picked up what I was told was a g16b but its a g16a, doesn't really bother me if it runs the same, maybe it's an import?

[Fatzook]

Parry wrote:

I picked up what I was told was a g16b but its a g16a, doesn't really bother me if it runs the same, maybe it's an import?

Yep. All JDM MPFI 16v's are A blocks. Seems the ADM was the only place to get the B block.

No difference between the two AFAIK.

[christover1]

I fitted an import G16A efi to my Vitara, which was a G16B.
I could not see any obvious differences.

Import bloke only had TBI's in the G16B's

I think its only here that A usually means carby

[Parry]

Ah that's good to know! I thought I had been jipped for abit but did a little searching & all good!

[Goldnomad]

I bought a G16A complete motor. The block was cracked. I used a good G16B block without any dramas.
The G16B was actually better since it had steel main bearing caps and not aluminium ones.

[Sookie]

grave digging here, but this happen to me as well got what I was told was a g16b.
after cleaning it up and pulling head off seen it has g16a on the side
was very worried but seeing there the same, bottom end will still be fine for my new g13bb head to bolt on for jimny conversion?