I need to look at a motor for a friend, and I need to know the easiest way to tell these two motors apart.

I know a few things already..

1. Date on head
2. Carbon feux spark plug cover

What about a block number? Is there a special designation for stuff after 98?

Spanks kids

 

headers are different.. obviously

 

sometimes the spark plug cover doesn't come with it, and even so.. it can be put onto a 95.5-97 spec to fool you.

the header like mentioned above, but that too can be swapped out.

i believe the block number can tell the year of it, i'd email a&j or PM AJR PWR

 

96 Spec JDM has 15" 4 lug wheels
98 Spec JDM has 16" 5 lug wheels

Ian

 

A JDM '96 spec ITR motor has a "95" stamp. The motor is made in the previous year to the car model year. I have a JDM '96 spec ITR motor and it says "95" near where the headers meet up to the head.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ianp &raquo;</TD></TR><TR><TD CLASS="quote">96 Spec JDM has 15" 4 lug wheels
98 Spec JDM has 16" 5 lug wheels

Ian</TD></TR></TABLE>

wtf.. LMAO. he said MOTOR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jonas &raquo;</TD></TR><TR><TD CLASS="quote">

wtf.. LMAO. he said MOTOR.</TD></TR></TABLE>

ha ha

bump

 

so a "97" stamp on the head can still mean that the motor is a 98spec?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedHatch &raquo;</TD></TR><TR><TD CLASS="quote">so a "97" stamp on the head can still mean that the motor is a 98spec?</TD></TR></TABLE>yes

 

i hope you asked jackson before you posted, he'll be pissed if you rely on another source.

 

Internally there is no difference. But for peice of mind, date stamping on the head is the only surefire way of distinguishing.

 

look for the date stamp on the head but an early say 1-96 would be a 96 motor,and a late 8-96 would be a 97.
on the block look for a date stamp, i belive it would say 95... , you add one year for every dot there is, so a 95... would be a 98

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NWP4LIFE &raquo;</TD></TR><TR><TD CLASS="quote">i hope you asked jackson before you posted, he'll be pissed if you rely on another source. </TD></TR></TABLE>

Ha ha, I posted this before I bought my original 98 spec

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92TypeR &raquo;</TD></TR><TR><TD CLASS="quote">Internally there is no difference. But for peice of mind, date stamping on the head is the only surefire way of distinguishing. </TD></TR></TABLE>

Cams are slightly different. Also, someone mentioned that 98 spec had 290 cc injectors. I'm not sure if there is any truth to that.

 

All JDM ITR's use 240cc injectors. Head stamp possibly only definitive way of telling. Cam profile if you want to get that detailed on it....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fowler &raquo;</TD></TR><TR><TD CLASS="quote">


Ha ha, I posted this before I bought my original 98 spec </TD></TR></TABLE>
my bad, those damn thread resurrectors