Telling the difference between pr3-4 itr/b16
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Telling the difference between pr3-4 itr/b16
My friend wants to give mr a type r head it's stamped pr3-4 which also some b16 head are stamped the same way...
I want to know what on r inside the head specifically can tellthem apart, iv read that behind where the dizzy goes itssupposes to be painted green somewhere? But he said there is no green mark?!
Any help is appreciated
I want to know what on r inside the head specifically can tellthem apart, iv read that behind where the dizzy goes itssupposes to be painted green somewhere? But he said there is no green mark?!
Any help is appreciated
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Part Numbers for Different Head Components
The PR3 Head stamped codes differences:
PR3-2 , PR3-3, and PR3-4 : 89-91 JDM B16A EF8/9, 96-00 OBD-2 Integra Type-R (JDM ,Euro, Asian, USDM)
PR3 - J00 or J51 : 92 JDM Integra B16A EF8/9
an ITR head is a ported B16A head from the factory. Both are coded as PR3 heads. So they are the same head but the ITR one (PR3-4) has had better intake valves, stiffer springs, bigger cams, bigger LMD's, bigger ports, steeper valve angles, some bowl blending work done from the factory.
Ways to identify an ITR/CTR head
* the green paint by the distributor
* thinner ITR intake valvestem (12% lighter vs GSR/Si valve)
* minor port work by the valve seat in the ports
* dual valve springs on both sides (b16a civic and b18c1 gsr heads have only single spring on exhaust side not dual), notice yellow paint on intake side, blue on exhaust side
* lost motion assembly has a blue dot
The PR3 Head stamped codes differences:
PR3-2 , PR3-3, and PR3-4 : 89-91 JDM B16A EF8/9, 96-00 OBD-2 Integra Type-R (JDM ,Euro, Asian, USDM)
PR3 - J00 or J51 : 92 JDM Integra B16A EF8/9
an ITR head is a ported B16A head from the factory. Both are coded as PR3 heads. So they are the same head but the ITR one (PR3-4) has had better intake valves, stiffer springs, bigger cams, bigger LMD's, bigger ports, steeper valve angles, some bowl blending work done from the factory.
Ways to identify an ITR/CTR head
* the green paint by the distributor
* thinner ITR intake valvestem (12% lighter vs GSR/Si valve)
* minor port work by the valve seat in the ports
* dual valve springs on both sides (b16a civic and b18c1 gsr heads have only single spring on exhaust side not dual), notice yellow paint on intake side, blue on exhaust side
* lost motion assembly has a blue dot
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Jdm b18c R LSD CRX si
TR "Old Skool EF" Member #96
JoKie TuNinG
RANGCRX BUILT TYPE R
StricKlyMT
727-510-6301
Jdm b18c R LSD CRX si
TR "Old Skool EF" Member #96
JoKie TuNinG
RANGCRX BUILT TYPE R
StricKlyMT
727-510-6301
engine building &best
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^great info!!!
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i love AUTOZONE
MY CAR iS PROTECTED BY ZOOMBAK GPS LOCATOR IS YOURS?
175+served in engines built from minime to gsr/lsvtec,b16 b20vtec,d15 k24 powerhouses or just rebuilds.life is good
i like when people don't take my advice.cause then i make more money when u need it rebuild the right way!
how many speed holes do i need in my bumper,b4 i can run 15's?