Z20E (6") con rods?

[laotsu]

so I pulled an engine out of a n '82 720 a couple months ago. the vin plate said it was a Z22S and I never checked the stamp on the block. I go to sell it to Rollovered and he points out that it's stamped as a Z20, so I sell him my private reserve Z22E because it's the right thing to do since he drove like 200 miles round trip for the block.

 

I started pulling the pistons and crank today to get the block ready for boring and I checked the con rods. HORRY SHEET they are stamped N85! so I measure 'em. They measure out to six inches and not the shorter five and three quarters. From what I can tell I have a set of the much sought after Z series long rods.

 

Am I wrong? Or am I one lucky son of a bitch?

 

[datzenmike]

Not really lucky. What you have is a Mileage Option Z20S motor. 9.5 compression, probably small dish pistons, special small combustion chamber Z head. It even has a knock sensor and ignition retard.

[laotsu]

Not really lucky. What you have is a Mileage Option Z20S motor. 9.5 compression, probably small dish pistons, special small combustion chamber Z head. It even has a knock sensor and ignition retard.

so they are the long rods?

[metalmonkey47]

Yup! Good score!

[Kirden]

Should sell them to me. Havng all kinds of issues finding some Z20E rods :P

[Zeusimo]

I Got My Rods From A Z20S Motor Too :)

[laotsu]

I Got My Rods From A Z20S Motor Too :)

I was aboot to make the 300 mile trip to your neck of the woods just to check if the 200sx at the PNP there had an engine in it. still might.

[datzenmike]

Can you post some pictures of the piston tops? Z20E are flat with valve reliefs in them. I always assumed the Z20S from the 720 were the same.

[laotsu]

I think they are standard Z20S pistons