cmaguire613

hey im reading that a b16a with the block stamp starting with 5 is the sir 2 and the ones starting with 1 are sir but the sir 2 has hydraulic clutch and obd2 and sir has cable and obd0 however my block stamp is "b16a 11*******" but ive got obd 2 and i have a hydraulic clutch any ideas? also it has no numbers after the a so im told its jdm

carlos8

Transmission and sensors isn't the way to I.D. an engine, the most reliable is the head stamp.

http://www.ff-squad.com/tech/head/bs...arofhead_2.jpg

This tell you the year of the cast made, and by the year look to what generation belong your engine.

cmaguire613

alright where will i be able to find out what gen via the stamp number?

KiNGDEE206

iTrader: (1)

Look at the head, right above the header

take a pic of your head similar to this pic:

cmaguire613

the visible stamp says
b16a
1017572

cmaguire613

oh ty ill check it

cmaguire613

says 89 so da6 or da8 if im correct 160 hp stock at crank

cmaguire613

and dohc is larger then tvech on my valve cover

carlos8

Yes, this is crx, siR and xsi 89-91 jdm b16a head.


VTEC

No double valve springs and lousy cams!!!

Deetz

If the engine is a 1st gen b16, it would have made 160hp, and yes, it would have had dual valve springs. They would have been 1st gen cams that were a bit mild, but with today's prices on used cams, that can be fixed easily.

"If", the 1st gen b16 was an auto, then yes, it would have been the weakest of all b16's with single valve springs and mild cams....I think only 150hp if memory serves right

cmaguire613

cool so i should upgrade cams and springs ? while im at it is it worth it to just fully build the head?