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View Full Version : how can i tell what year my engine is?

sr20sean
05-29-2009, 05:52 PM
is there anything on the block that would tell me what year my engine is? the engine was swapped so i cant just look at the sticker and see what the production numbers say. any help is appreciated :D
S14DB
05-29-2009, 05:54 PM
KA or SR? S13/14/15?
sr20sean
05-29-2009, 05:57 PM
its a ka24e in an 89 s13
just wanted to figure it out cause early 89's would make it have a 11.7:1 compression with a de head and if my engine was that one i would end up using it for a build
Sileighty_85
05-29-2009, 05:59 PM
well its only gonna be an 89 or a 90
after 1990 the 240SX came with KA24DE (Dual Cams)
sr20sean
05-29-2009, 06:00 PM
well its only gonna be an 89 or a 90
im trying to find out if its an early 89 or the later model one though.
Sileighty_85
05-29-2009, 06:01 PM
why does it matter?
the KA24E in 1989 is the same as the 1990.
sr20sean
05-29-2009, 06:05 PM
why does it matter?
the KA24E in 1989 is the same as the 1990.
trying to plan out my build
if its the earlier one that would make an 11.7:1 compression ratio then i would just end up using that and making an all motor engine instead of ka-t
Sileighty_85
05-29-2009, 06:16 PM
Im not an expert on the KA but Ive never heard of the KAE having 11.7:1 CR

The single cams have 9.1:1 CR
The Dual Cams having 9.5:1 CR
sr20sean
05-29-2009, 06:26 PM
ok guys here it is proof: KA24E / KA24DE Forum: Nissan Forums / Infiniti Forums - NICOclub (http://forums.nicoclub.com/zerothread?id=40742)
its an 88 block that came in 89's
88 ka24e block + ka24de head will get around 11.7:1 compression
S14DB
05-29-2009, 06:52 PM
all sohc engines that fall on/after serial number ka24-012039 have the lower compression.

Did you read the thread you quoted?
sr20sean
05-29-2009, 07:00 PM
Did you read the thread you quoted?
i didnt read all of it lol
too many pages i just scanned through i didnt see the serial number part
ok just read through more of it. i should fully read things before posting about it lol
ill still get ~11:1 compression if its not an early one
90hatchie
05-29-2009, 07:03 PM
u just yanked this motor out to go sr
what happen to that?
sr20sean
05-29-2009, 07:08 PM
u just yanked this motor out to go sr
what happen to that?
i pulled this motor cause it had a blown head gasket and i wanted to go sr
then i realized im broker then i thought so im just putting a ka together so i can drive the car this summer