Well my friend ordered a JDM b16a2 and when we got the motor it said Just B16A and thats it. so then we called the guy that sold it to us, and he said that JDM motors dont have B16A2 but he said you can tell by the intake manifold how it has 2 strips like so
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i know those are 3 strips but the 2 on the outer he said it was 2nd gen
but how else can i tell if the motor is a B16A2 ??
does anybody know??

 

ur friend either got the usdm b16a2 or the jdm b16, if what the guy said is correct ur friend got the b16 sir2 which is the jdm b16 which is only labeled as b16 in the block. one way u can tell if it is the sir2 is if the Dohc is in bigger letters than the vtec letters, on the sir i think the vtec letters are bigger than the dohc letters.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by XkjeldorX &raquo;</TD></TR><TR><TD CLASS="quote">ur friend either got the usdm b16a2 or the jdm b16, if what the guy said is correct ur friend got the b16 sir2 which is the jdm b16 which is only labeled as b16 in the block. one way u can tell if it is the sir2 is if the Dohc is in bigger letters than the vtec letters, on the sir i think the vtec letters are bigger than the dohc letters.</TD></TR></TABLE>

what if ur only buying the block and u have no valve cover as a reference??

 

look at the year of the head, at the exhaust ports, should have the year there.
should say 30 by the vtec sol.
the engine should have grey plugs

 

If its just the block, the JDM SiR-2 block should say "P30" on the tops of the pistons, I beilive there should be a date stamp some where on the block, and the SiR-1 blocks come with an oil cooler. The USDM Blocks should say B16A2 right on um and should have a VIN # at the front of the block on a green placard.
But as far as the whole motor goes its real easy to tell the differnce, The Manifold is totaly differnt, the header is differnt, the distributor is differnt, at the front of the head there is a date stamp witch should have a date that is 92 and up and vise versa for the SiR-1 motor.

Best of Luck,
James

 

jdm b16a sir = obd0
jdm b16a sir2 = obd 1

sir2 will have like 10.5 to 1 comp

sir will have like 10 to 1 comp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1stealthls &raquo;</TD></TR><TR><TD CLASS="quote">jdm b16a sir = obd0
jdm b16a sir2 = obd 1

sir2 will have like 10.5 to 1 comp

sir will have like 10 to 1 comp</TD></TR></TABLE>

Sir is 10.2:1 compression...i think the OBD1 B16A is 10.4:1