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Discussion Starter #1
First question.....why are the rods marked 1,2,3,3 ...could this be a problem if i build it up with the rods?
I have read many sites and forums about the ZC and D16A1 ....they sau that the D16A1 is 118hp....is this caz the US uses lower octone fuel? a lot of sites say that the D16A1 isent the ZC1 so it should say D16A1 on the block not ZC1?

A nother question is that the pistons i have are marked PG6B should be rom a D16A1 but the block is ZC1-120.......... And would the 89-91 ZC pistons fit the D16A1/ZC or what ever it is called.
My first swap is driving me crazy caz the info on the internet so different on every good damn site.

Is this info that i found right? If it iis how do i find out what engine i have?
The engine ID sais that i have the ZC but the pistons sai i have a D16A1
My engine discription:
Brown top ,bolt in the middle ,vac. timing , PG6B pistons...and looks like this:http://www.zone.ee/Deadhitman8/pildid/20-12-05_1509.jpg

1G ZC "Brown Top" D16A3
Engine ID: ZC
CC: 1590
Hp: [email protected]
TQ: [email protected]
Bore: 75mm
Stroke: 90mm
Compression:
Fuel System: PGM-FI
Ignition System: Vacuum Advance
Notes: Valve Cover Bolts are in the middle of the valve cover, NOT USDM LEGAL

86-87 US Integra "Brown Top"
Engine ID: D16A1
CC: 1590
Hp: [email protected]
TQ: [email protected]
Bore: 75mm
Stroke: 90mm
Compression: 9.3:1
Fuel System: PGM-FI
Ignition System: Vacuum Advance
Notes: Valve Cover Bolts are in the middle of the valve cover

88-89 US Integra "Black Top"
Engine ID: D16A1
CC: 1590
Hp: [email protected]
TQ: [email protected]
Bore: 75mm
Stroke: 90mm
Compression: 9.5:1
Fuel System: PGM-FI
Ignition System: Electronic Advance
Notes: Valve Cover Bolts are in the middle of the valve cover
 

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the hp difference between the d16a1 and the zc is the camshafts not octane. Your pistons say pg6b because thats the 86-87 integra jdm zc motor. Those pistons are 9.3:1 verus 9.5:1 in 88-89. Yes the 88-91 zc pistons will fit in that zc because they are the same bore of 75mm. Will give you 9.5:1 compression.
 

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Discussion Starter #4
Have not seen a H logo on the exhaust side but yes the serial and engine ID is on the intake side.

The 88-91 ZC pistons are PM7 or P29? and what pistons would be the best in this type of engine?

Thx for the help
 
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