What's the difference ka24de s13 head and s14 head, Pics are here!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mark77733 · 08-22-2007, 01:56 AM

HI~ Guys, Here's pics for s13 head and s14 head cylinders, I searched many ad for ka head cyinder, to know what's difference s13ka and s14ka,
I found here, But i do not want to install s13 ka head to my 95 s14 engine block, Many people said, change distributor, swap the plugs from the s13 harness onto the s14 one and ETC!!! PLAEAS, LET ME KNOW LEFT SIDE HEAD YEAR ON PICS, AND CAN I USE THIS CYLINDER HEAD ON MY CAR? THANK YOU..

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Thanks for all of zilvia guys!! i am ready to swap 98 head cylinder with s13 cams here's #2 update pictures!!!

And i have few more questions for cams, i want to know which cam is exhaust side? and air intake side!!! <- noooooooooooby!!!!!

If i tab the last oil plug whole by weld, is that ok? let me know guys!!

EDacIouSX · 08-22-2007, 02:27 AM

the other s14 ka is probably the OBD2 ones... that is my guess...

gunluvS14 · 08-22-2007, 05:30 AM

the one on the far right is 97-98 KA24DE head, with missing a pair of tower.
you can use 95 cam on the 97-98 head with no ill effect, people been swapping 248 S13 cams into 97-98 head with the missing holders.

projectRDM · 08-22-2007, 06:21 AM

Exactly. The 97-98 heads do not have the rearmost cam towers, otherwise they're identical.

sunnys14 · 08-22-2007, 11:00 AM

left is 95-96 s14 KA
middle is 97-98 s14 KA
right is 91-94 s13 KA

you can use s13 head on a s14 block. just keep the s13 valve cover and s13 upper front cover and youre fine. ive used s14 heads on s13 blocks, and s13 heads on s14 blocks. worked fine for me everytime.

projectRDM · 08-22-2007, 11:42 AM

Quote:

Originally Posted by sunnys14

left is 95-96 s14 KA
middle is 97-98 s14 KA
right is 91-94 s13 KA

you can use s13 head on a s14 block. just keep the s13 valve cover and s13 upper front cover and youre fine. ive used s14 heads on s13 blocks, and s13 heads on s14 blocks. worked fine for me everytime.

No. Middle is the 95-96, it has the rearmost cam towers. Left is the 97-98.

trsilvias13 · 08-22-2007, 12:57 PM

If you look at all 3 head, left cleanest (97-98), middle a lil dirtier (95-96), dirtiest (s13)... just something I notice.

donkayroo · 08-22-2007, 02:09 PM

Quote:

Originally Posted by gunluvS14

the one on the far right is 97-98 KA24DE head, with missing a pair of tower.
you can use 95 cam on the 97-98 head with no ill effect, people been swapping 248 S13 cams into 97-98 head with the missing holders.

Ya'll have to keep in mind that KA cams have an "oiler port" that runs down the center of the camshafts. I know you all know KA cams are hollow for this reason. All cam journals have pin holes (as seen in pic #4) that tap into the oiler port of the cams for lubrication between the cam and head mating surfaces.

The cam oiler port is fed by the engines main oil system which means any "internal leak" in the oil pressure system will cause oil pressure drop. If 96 and below cams are installed into a 97-98 head, the oil pressurized camshaft will spit out the oil out of the last cam journal...the one that isn't sandwiched between the cylinder head and cam cap. Make sense?

As a result, there is now an "internal leak" within the engines' oil pressure. Sure the hole is only about a 1mm diameter. I ain't a math wiz so I can't calculate what the exact pressure drop would be, but I'm sure most guys who've bought junkyard 248 duration cams don't have an oil pressure gauge to monitor any pressure drop after installing into their 97-98 head. Then again, oil feed lines are required for KA-T guys which would probably slightly alter pressure as well right? An engineer would probably tell you to do it right and plug the hole before you insert yer camshaft into her head.

This is just an FYI. I'm not trying to say your gonna seize your motor by letting oil piss out of the cam journal pin hole. I'm saying use extreme caution. I personally wouldn't do it on my 98. I have an oil pressure gauge but I'm not gonna be the guinea pig either.

From a KA-T guy to another KA guy, Good luck!

mark77733 · 08-22-2007, 04:37 PM

All of you guys are awesome!!! , Quick respond reply message,, HAHA, Ok I will put 95 cams on 97-98 head cylinder, I will update the pics ASAP!!! Thank you very much guys~~~

sunnys14 · 08-22-2007, 06:29 PM

oops i had it mixed around. my bad, i meant left is 97 middle is 95

cdlong · 08-22-2007, 11:01 PM

Quote:

Originally Posted by donkayroo

Ya'll have to keep in mind that KA cams have an "oiler port" that runs down the center of the camshafts. I know you all know KA cams are hollow for this reason. All cam journals have pin holes (as seen in pic #4) that tap into the oiler port of the cams for lubrication between the cam and head mating surfaces.

The cam oiler port is fed by the engines main oil system which means any "internal leak" in the oil pressure system will cause oil pressure drop. If 96 and below cams are installed into a 97-98 head, the oil pressurized camshaft will spit out the oil out of the last cam journal...the one that isn't sandwiched between the cylinder head and cam cap. Make sense?

As a result, there is now an "internal leak" within the engines' oil pressure. Sure the hole is only about a 1mm diameter. I ain't a math wiz so I can't calculate what the exact pressure drop would be, but I'm sure most guys who've bought junkyard 248 duration cams don't have an oil pressure gauge to monitor any pressure drop after installing into their 97-98 head. Then again, oil feed lines are required for KA-T guys which would probably slightly alter pressure as well right? An engineer would probably tell you to do it right and plug the hole before you insert yer camshaft into her head.

This is just an FYI. I'm not trying to say your gonna seize your motor by letting oil piss out of the cam journal pin hole. I'm saying use extreme caution. I personally wouldn't do it on my 98. I have an oil pressure gauge but I'm not gonna be the guinea pig either.

From a KA-T guy to another KA guy, Good luck!

i'd be less concerned about overall pressure and more concerned about local pressure inside the camshafts. with that last hole open, more oil would go out that hole, reducing oil flow to the other journals. probably not much of an issue, but a simple weld spot could plug that hole and not cause any other problems.

two other questions i had just out of curiosity. what if you run 97/98 cams in a '96 head? would the cams not reaching the last journal be a problem? and the dips in the backside of the '97 head, my memory is a little off, are those in the '95 head too? the pictures aren't very clear.

i've been looking for a direct comparison too. thanks.

donkayroo · 08-23-2007, 07:54 AM

Quote:

Originally Posted by cdlong

i'd be less concerned about overall pressure and more concerned about local pressure inside the camshafts. with that last hole open, more oil would go out that hole, reducing oil flow to the other journals. probably not much of an issue, but a simple weld spot could plug that hole and not cause any other problems.

two other questions i had just out of curiosity. what if you run 97/98 cams in a '96 head? would the cams not reaching the last journal be a problem? and the dips in the backside of the '97 head, my memory is a little off, are those in the '95 head too? the pictures aren't very clear.

i've been looking for a direct comparison too. thanks.

You might be correct in regards to the pin hole not affecting overall pressure but it ain't worth the risk leaving it open. You are spot on about pressure reducing oil flow to the other journals.

Ironically, I just diagnosed my friends engine whoas. He was running on two cylinders and backfiring like a mofo.

I did every test imaginable, including the painstaking task of taking an ohm meter to every ignition/fuel related pin out. Low and behold an exhaust camshaft split clean in half at the #3 journal was the culprit.

It appears the journal seized while the cam gear kept spinning shearing the cam just before the journal itself. The #3 and #4 exhaust valves were incapacitated, hence the backfiring which made the car run as if only on two cylinders. No escape for the exhaust but through the opening intake valves.

Pics to come.

97-98 cams are the same exact length as 96 and below. The last journal just doesn't have the pin hole. You can run 97-98 cams, but the last journal will lack proper lubrication and inevitably seize...unless your using the AMAZING "Slick 50" or "Prolong"...just kidding...

If someone decides they're in desperate need to run 97+ cams in a 96 head you'd have to mill a pin hole for proper lubrication or run without the cam cap on the last journal. Otherwise...snap goes your camshaft!

mark77733 · 08-24-2007, 02:43 AM

Hi~ I have 2 types cams, S13 and S14, some people set it up 98 head cylinder with s13 cams, Do you think which set up is good for it? And If i put 98head with s13(248)cams on my car, What do i have to do:? Please let me know. hehe=)

cdlong · 08-24-2007, 10:17 AM

if you can afford a '98, you can afford real cams. don't buy junkyard shit, get some real cams from brian crower or JWT. s13 cams are for loosers that own '95s

cdlong · 08-24-2007, 10:22 AM

where's my signature?

sunnys14 · 08-24-2007, 02:56 PM

Quote:

Originally Posted by cdlong

if you can afford a '98, you can afford real cams. don't buy junkyard shit, get some real cams from brian crower or JWT. s13 cams are for loosers that own '95s

i didnt know making 10+ whp on s13 cams is for losers.

232 232 vs 248 232

maybe you should research or try things before you open your mouth and say smart things.

projectRDM · 08-24-2007, 03:31 PM

S13 cams are 240, 248. A pair of the 248s yields even more power, but with greater overlap in the midrange, loosing a little before they kick in.

240trooper · 08-24-2007, 04:08 PM

my friend has a 95 dohc with a sohc on the intake side and stock other, used for nos boost , feels slower than my 89 sohc and my homies 91 dohc. but the 95 has a really nice sound, sounds like a wrx boxer

cdlong · 08-25-2007, 04:04 AM

Quote:

Originally Posted by sunnys14

i didnt know making 10+ whp on s13 cams is for losers.

it was a joke, relax.

i am suprised they add that much though, never seen dyno charts. what do JWT cams do?

orion::S14 · 08-25-2007, 07:22 AM

One thing to note on the S13 or '95-96 cams in the later S14 heads without the last cam towers:

You can use any cam in there, but you HAVE to push in the rear oil plug.

Measure the depth on the stock cams with a toothpick (or something).

Then use a small socket as a 'drift', and just tap the oil plug in as far as it is in the stock '98 cams.

Easy stuff.

- Brian

08-22-2007, 01:56 AM	#1
mark77733 Join Date: Sep 2006 Location: la Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	What's the difference ka24de s13 head and s14 head, Pics are here!! HI~ Guys, Here's pics for s13 head and s14 head cylinders, I searched many ad for ka head cyinder, to know what's difference s13ka and s14ka, I found here, But i do not want to install s13 ka head to my 95 s14 engine block, Many people said, change distributor, swap the plugs from the s13 harness onto the s14 one and ETC!!! PLAEAS, LET ME KNOW LEFT SIDE HEAD YEAR ON PICS, AND CAN I USE THIS CYLINDER HEAD ON MY CAR? THANK YOU.. -------------------------------------------------------------------------------------------------------------------------- Thanks for all of zilvia guys!! i am ready to swap 98 head cylinder with s13 cams here's #2 update pictures!!! And i have few more questions for cams, i want to know which cam is exhaust side? and air intake side!!! <- noooooooooooby!!!!! If i tab the last oil plug whole by weld, is that ok? let me know guys!! Last edited by mark77733; 08-29-2007 at 03:19 AM..

08-24-2007, 10:22 AM	#15
cdlong Nissanaholic! Join Date: Jun 2003 Location: Colorado Springs Age: 40 Posts: 1,845 Trader Rating: (0) Rides Gallery: cdlong Feedback Score: 0 reviews	where's my signature? __________________

08-24-2007, 03:31 PM	#17
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	S13 cams are 240, 248. A pair of the 248s yields even more power, but with greater overlap in the midrange, loosing a little before they kick in. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

08-25-2007, 07:22 AM	#20
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,665 Trader Rating: (0) Feedback Score: 0 reviews	One thing to note on the S13 or '95-96 cams in the later S14 heads without the last cam towers: You can use any cam in there, but you HAVE to push in the rear oil plug. Measure the depth on the stock cams with a toothpick (or something). Then use a small socket as a 'drift', and just tap the oil plug in as far as it is in the stock '98 cams. Easy stuff. - Brian __________________ www.KA24DEvelopment.com

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08-22-2007, 02:27 AM	#2
EDacIouSX Post Whore! Join Date: Nov 2004 Location: Los Angeles Age: 35 Posts: 4,527 Trader Rating: (53) Rides Gallery: EDacIouSX Feedback Score: 53 reviews	the other s14 ka is probably the OBD2 ones... that is my guess...

08-22-2007, 05:30 AM	#3
gunluvS14 Zilvia Member Join Date: May 2006 Location: ga Posts: 206 Trader Rating: (0) Feedback Score: 0 reviews	the one on the far right is 97-98 KA24DE head, with missing a pair of tower. you can use 95 cam on the 97-98 head with no ill effect, people been swapping 248 S13 cams into 97-98 head with the missing holders. __________________

08-22-2007, 06:21 AM	#4
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Exactly. The 97-98 heads do not have the rearmost cam towers, otherwise they're identical. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

08-22-2007, 11:00 AM	#5
sunnys14 Zilvia FREAK! Join Date: Mar 2006 Location: a land far far away... Posts: 1,549 Trader Rating: (19) Feedback Score: 19 reviews	left is 95-96 s14 KA middle is 97-98 s14 KA right is 91-94 s13 KA you can use s13 head on a s14 block. just keep the s13 valve cover and s13 upper front cover and youre fine. ive used s14 heads on s13 blocks, and s13 heads on s14 blocks. worked fine for me everytime.

08-22-2007, 12:57 PM	#7
trsilvias13 Nissanaholic! Join Date: Nov 2001 Posts: 1,984 Trader Rating: (5) Feedback Score: 5 reviews	If you look at all 3 head, left cleanest (97-98), middle a lil dirtier (95-96), dirtiest (s13)... just something I notice.

08-22-2007, 04:37 PM	#9
mark77733 Join Date: Sep 2006 Location: la Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	All of you guys are awesome!!! , Quick respond reply message,, HAHA, Ok I will put 95 cams on 97-98 head cylinder, I will update the pics ASAP!!! Thank you very much guys~~~

08-22-2007, 06:29 PM	#10
sunnys14 Zilvia FREAK! Join Date: Mar 2006 Location: a land far far away... Posts: 1,549 Trader Rating: (19) Feedback Score: 19 reviews	oops i had it mixed around. my bad, i meant left is 97 middle is 95

08-24-2007, 02:43 AM	#13
mark77733 Join Date: Sep 2006 Location: la Posts: 16 Trader Rating: (0) Feedback Score: 0 reviews	Hi~ I have 2 types cams, S13 and S14, some people set it up 98 head cylinder with s13 cams, Do you think which set up is good for it? And If i put 98head with s13(248)cams on my car, What do i have to do:? Please let me know. hehe=)

08-24-2007, 10:17 AM	#14
cdlong Nissanaholic! Join Date: Jun 2003 Location: Colorado Springs Age: 40 Posts: 1,845 Trader Rating: (0) Rides Gallery: cdlong Feedback Score: 0 reviews	if you can afford a '98, you can afford real cams. don't buy junkyard shit, get some real cams from brian crower or JWT. s13 cams are for loosers that own '95s

08-24-2007, 04:08 PM	#18
240trooper Zilvia Addict Join Date: Sep 2003 Location: Torrance, California Posts: 791 Trader Rating: (10) Feedback Score: 10 reviews	my friend has a 95 dohc with a sohc on the intake side and stock other, used for nos boost , feels slower than my 89 sohc and my homies 91 dohc. but the 95 has a really nice sound, sounds like a wrx boxer