B-series Short Block Identification

[J101]

Thanks to UdengFahlawi, i think its high time we clear this matter up.

From this thread:
http://www.zerotohundred.com/newforums/honda/143567-class-f-sepang-drag-battle-25.html

1. If you notice the dipstick angle surface for B20B is rectangularish and the rest is triangular. All b-series except B20B that has this unique shape.

2. This identification is to search for re-stamped B20B blocks.

3. This comparison is based on factory exterior identification, we dont want to know whether it has been re-sleeved or stroked. If you stroke your B16A or re-sleeved to 1.9L, it is still less than 2L. But if its a 2L block sleeved to 2.3L, that is an elephant. Unforgetting nowadays you can DECK up the block. Make that 2.5L for a B20B. Theres a 2.6L stroker kit for a K24 block. Imagine it restamped to K20.

4. If its a DART block, you can see a DART stamp on the block. Unless paranoid, owner decides to grind the DART word for kiasu purposes.

5. Bring your Maglite or Surefire torchlight and shine the block for identification.

I hope this helps. Anymore info would be great.

 

[HanafyEG]

this good stuff

 

[hattech-v]

there r few more places to differentiate those block.
the area u put in triangle sometime hard to spot if they using normal extractor with the shield.

 

[akuma]

J101,
thx...except 4 d "tapak" part,d part whr u boxed it red all look trianglish 2 me....

 

[akuma]

hattech-v,
v need ur input,pls?J101 kept saying ur d BEST person 2 clarify dis...i'm sick of being cheated!

 

[shiroitenshi]

Actually the block is also wider.

I'm not sure the exact thickness of the sleeves are, but you can do the math by this.

81mmx4 < 84mmx4

Type R blocks are 81mm bore, and plus the sleeves, they take up space just a bit more than the head.

84mm is the B20B, and when you times it by four pistons.. you get about 12cm more.. which means that the B20B block is wider by 12cm than the Type R block. And obviously this will show when you shine at where the head and block meet on the transmission side. 12cm is not so easily missed. I don't think they will relocate the water passages and dowels just to hide this fact.

This one, I give credit to hattech since he did post a photo of how the the block meets the head.

The other one is the webbing design on the bottom of the block.. They're different.

There's also the way of 'added deck height method/deck plate method +sleeves' to enable the use of long rod, big stroke combo for 2L+ on B18C block.,... but I haven't even met someone who's heard of the term.

That one, you will not notice so easily since it's +/- 1xmm vertically. but I wonder who's willing to spring the price for such an extensive mod? :P

If got, bro.. RESPECT! :P

 

[hattech-v]

i can post more pics on the comparison... but later jpj/puspakom print this... hehehehe... or shud anyone looking for it pm me...
but if u all dun mind if i post it here... then i'll post...

at least got 4 spot from block design to differentiate each other.

 

[shiroitenshi]

yeah.. actually you posted alreadylah.. somewhere. :P

 

[udengfahlawi]

actually, short block refers to what engine and long block refers to what engine?....

 

[shiroitenshi]

AFAIK.. long block is what we call here as 'enjin kosong'..
Which is block + head

From what I knowlah.. better check if I'm right or not.

 

[hattech-v]

short block i think refering to b16a block, while long block refering to b16b, b18c, b18b, b20b.

 

[akuma]

hattech-v,
if u ask me of course i dun mind u posting it coz i know my block is genuine n legitimate..any1 got objection here,pls raise ur pistons...ahhahaahhahha
i did try searching 4 any related old threads....din find anythg ler...or if u dun wanna post it here cud u kind email it 2 me?thx

[email protected]

 

[shiroitenshi]

short block i think refering to b16a block, while long block refering to b16b, b18c, b18b, b20b.

I thought that the b16b/18c/b, B20B are 'taller' blocks.. this is the first time I heard people calling them long blocks. (O_o)

 

[SA6YEuro]

heres a very informative site on the jargons the Yanks use....

Block Descriptions

honestly i tot they were referin 2 the stroke.... silly me....hehehe

mat salleh way of sayin engine lantai or kosong...... buggers...

 

[udengfahlawi]

I thought that the b16b/18c/b, B20B are 'taller' blocks.. this is the first time I heard people calling them long blocks. (O_o)

heheh....i konpius myself in this....not sure the opposite of short block is long block or tall block....both are gramatically correct actually, but not sure for enginematically ler.....