Own a 96-97 Del Sol VTEC? Is PR3 the correct head stamp?
Thread Starter
Joined: Jul 2007
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From: Toronto, Canada
Okay, so I recently purchased a 96 EG2, which has what appears at first glance to be a bone stock B16A2.
But being an enthusiast, and having ideas to purchase a B20 to make a B20VTEC, I want to make certain that I know exactly what I have.
The head is stamped as a PR3-1 manufactured in 1995.
I have read online from multiple sources that the PR3-1 is either a B16 or ITR head, and the only way to tell is the year of manufacture. If it is stamped as a late 80s or early 90s, it is a B16. If it is stamped mid to late 90s, it is an ITR. But then that would mean I have an ITR head...
So, if you own a stock Del Sol VTEC from 1996 or 1997, please reply back with what your head stamp says. I want to know for sure what I have in my car.
Thanks,
-Ando
But being an enthusiast, and having ideas to purchase a B20 to make a B20VTEC, I want to make certain that I know exactly what I have.
The head is stamped as a PR3-1 manufactured in 1995.
I have read online from multiple sources that the PR3-1 is either a B16 or ITR head, and the only way to tell is the year of manufacture. If it is stamped as a late 80s or early 90s, it is a B16. If it is stamped mid to late 90s, it is an ITR. But then that would mean I have an ITR head...
So, if you own a stock Del Sol VTEC from 1996 or 1997, please reply back with what your head stamp says. I want to know for sure what I have in my car.
Thanks,
-Ando
If you loved me, you'd all sell me your magic cards to me today



Joined: Oct 2005
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From: Atlantic Ocean Florida
PR3 is the head ID #. The folowing number, either 1 - 4, is from what casting it came from. I've seen ITR heads have every number, 1 - 4, and many different b16 years have different #'s following the ID #...example, my b17a head was PR3-2, my '92 JDM Xsi B16 head is PR3-1, my '00 JDM ITR head is PR3-4, my '97 USDM ITR head is PR3-1.
...There is no way to tell from the ID # and casting # which model/year/make the head came from. The only sure fire way to determine if the head is actually an ITR head is the green paint behind the distributor, which is the paint they slab on there in the factory when they select the best looking ones to go out for machining, and the minor portwork on the intake ports, and larger intake valves.
...There is no way to tell from the ID # and casting # which model/year/make the head came from. The only sure fire way to determine if the head is actually an ITR head is the green paint behind the distributor, which is the paint they slab on there in the factory when they select the best looking ones to go out for machining, and the minor portwork on the intake ports, and larger intake valves.
Thread Starter
Joined: Jul 2007
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From: Toronto, Canada
Really? if that's the case then there is a ton of misinformation on this topic.
Thanks for the (hopefully accurate) info. I'll check it out.
Thanks for the (hopefully accurate) info. I'll check it out.
Thread Starter
Joined: Jul 2007
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From: Toronto, Canada
Thread Starter
Joined: Jul 2007
Posts: 1,844
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From: Toronto, Canada
...There is no way to tell from the ID # and casting # which model/year/make the head came from. The only sure fire way to determine if the head is actually an ITR head is the green paint behind the distributor, which is the paint they slab on there in the factory when they select the best looking ones to go out for machining, and the minor portwork on the intake ports, and larger intake valves.
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Thread Starter
Joined: Jul 2007
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From: Toronto, Canada
If you loved me, you'd all sell me your magic cards to me today



Joined: Oct 2005
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From: Atlantic Ocean Florida
VTEC
Found in:
1992-1995 Honda Civic VTi EDM (EG9)
1992-1997 Honda Del Sol VTi EDM (EG2)
1993-1995 Honda Civic Si EDM (EG6)
1996-2000 Honda Civic VTi EDM (EK4)
1999–2000 Honda Civic Si USDM (EM1)
1996-1997 Honda Del Sol USDM "VTEC" (EG2)
1999–2000 Honda Civic SiR CAN (EM1)
1999–2000 Honda Civic SiR Philippines (EK4 sedan)
1995-2000 Honda Civic VTi-R AUSTRALIA (EK4)
Displacement: 1,595 cc (97.3 cu in)
Bore×Stroke: 81.0×77.4 mm (3.19×3.05 in)
Compression: 10.2:1
Power: 160 hp (119 kW) @ 7600 rpm & 111 lb·ft (150 N·m) @ 7000 rpm (USDM)
Transmission: Y21/ S4C
Redline: 8000 rpm
Rev Limit: 8200 rpm
VTEC engages at 5600 rpm
Aluminum Casting
ECU Code: JDM P2T (square case) or USDM P30 (regular case)
OBD1(1992-1995) OBD2a(1996-1998) OBD2b(1999-2000)
Thread Starter
Joined: Jul 2007
Posts: 1,844
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From: Toronto, Canada
B16A2
VTEC
Found in:
1992-1995 Honda Civic VTi EDM (EG9)
1992-1997 Honda Del Sol VTi EDM (EG2)
1993-1995 Honda Civic Si EDM (EG6)
1996-2000 Honda Civic VTi EDM (EK4)
1999–2000 Honda Civic Si USDM (EM1)
1996-1997 Honda Del Sol USDM "VTEC" (EG2)
1999–2000 Honda Civic SiR CAN (EM1)
1999–2000 Honda Civic SiR Philippines (EK4 sedan)
1995-2000 Honda Civic VTi-R AUSTRALIA (EK4)
Displacement: 1,595 cc (97.3 cu in)
Bore×Stroke: 81.0×77.4 mm (3.19×3.05 in)
Compression: 10.2:1
Power: 160 hp (119 kW) @ 7600 rpm & 111 lb·ft (150 N·m) @ 7000 rpm (USDM)
Transmission: Y21/ S4C
Redline: 8000 rpm
Rev Limit: 8200 rpm
VTEC engages at 5600 rpm
Aluminum Casting
ECU Code: JDM P2T (square case) or USDM P30 (regular case)
OBD1(1992-1995) OBD2a(1996-1998) OBD2b(1999-2000)
VTEC
Found in:
1992-1995 Honda Civic VTi EDM (EG9)
1992-1997 Honda Del Sol VTi EDM (EG2)
1993-1995 Honda Civic Si EDM (EG6)
1996-2000 Honda Civic VTi EDM (EK4)
1999–2000 Honda Civic Si USDM (EM1)
1996-1997 Honda Del Sol USDM "VTEC" (EG2)
1999–2000 Honda Civic SiR CAN (EM1)
1999–2000 Honda Civic SiR Philippines (EK4 sedan)
1995-2000 Honda Civic VTi-R AUSTRALIA (EK4)
Displacement: 1,595 cc (97.3 cu in)
Bore×Stroke: 81.0×77.4 mm (3.19×3.05 in)
Compression: 10.2:1
Power: 160 hp (119 kW) @ 7600 rpm & 111 lb·ft (150 N·m) @ 7000 rpm (USDM)
Transmission: Y21/ S4C
Redline: 8000 rpm
Rev Limit: 8200 rpm
VTEC engages at 5600 rpm
Aluminum Casting
ECU Code: JDM P2T (square case) or USDM P30 (regular case)
OBD1(1992-1995) OBD2a(1996-1998) OBD2b(1999-2000)
The difference is minimal in each head, just the type r flows better with a mild port job. What are you trying to accomplish by knowing what you have?
Thread Starter
Joined: Jul 2007
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From: Toronto, Canada
Seriously?
As I already stated in the original post: "But being an enthusiast, and having ideas to purchase a B20 to make a B20VTEC, I want to make certain that I know exactly what I have."
Also, knowing what I have would be important for other reasons... just one example: lets say I blew the bottom end, or actually, even without blowing it, knowing what it is would be important if I decided to sell the head.
As I already stated in the original post: "But being an enthusiast, and having ideas to purchase a B20 to make a B20VTEC, I want to make certain that I know exactly what I have."
Also, knowing what I have would be important for other reasons... just one example: lets say I blew the bottom end, or actually, even without blowing it, knowing what it is would be important if I decided to sell the head.
Thread Starter
Joined: Jul 2007
Posts: 1,844
Likes: 3
From: Toronto, Canada
That said, I am still deciding between a B20 or a B18B. Both are relatively cheap from JDM importers. Then again, both need a ton of work to make them reliable with a VTEC head...so I suppose cost shouldn't be a concern for me if I decide to build a frankenstein. So I guess when the time comes, if I can find a GSR block in good condition for a good price, I will consider it as well.
Seriously?
As I already stated in the original post: "But being an enthusiast, and having ideas to purchase a B20 to make a B20VTEC, I want to make certain that I know exactly what I have."
Also, knowing what I have would be important for other reasons... just one example: lets say I blew the bottom end, or actually, even without blowing it, knowing what it is would be important if I decided to sell the head.
As I already stated in the original post: "But being an enthusiast, and having ideas to purchase a B20 to make a B20VTEC, I want to make certain that I know exactly what I have."
Also, knowing what I have would be important for other reasons... just one example: lets say I blew the bottom end, or actually, even without blowing it, knowing what it is would be important if I decided to sell the head.
Thread Starter
Joined: Jul 2007
Posts: 1,844
Likes: 3
From: Toronto, Canada
If you were indeed an enthusiast, like all the experience people here are, than that info would've been confirm by now and not by asking people to feed that info to you. Like someone said check the paint markings by removing the distributor. Don't be a ***** by being afraid to take the valve cover off or the distributor. Another hint to google for are the valvesprings.
I'm not expecting to be spoon fed info, and I don't consider myself to be a noob. I've done two complete swaps myself - D16Y7 to a D15B VTEC in my 00 Civic hatch (which was an OBD2B non-VTEC to an OBD1 with VTEC) and an H22Z1 to an H23VTEC in my 01 Prelude. Both required a ton of research that I did myself, and as such, both worked flawlessly on the first key turn without an engine light or any other hiccup. So no, I am not a "***** that is afraid to remove my valve cover" as you state. Don't pretend to know me and say bullshit like that. It isn't appreciated and doesn't help me figure this out.
check the cam shafts and valve springs, also the intake manifold is diffrent for the itr. both bolts into each other the same but the itr is bigger. as for the head. pull the headers off and see if the ports are smoothed out or still rough like from the cast(its not going to tell you 100% but close enough).
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