- Posts: 147
- Thank you received: 5
What CR is this piston?
- Gman
-
Topic Author
- Offline
- User
14 Sep 2008 09:34 #237099
by Gman
I've got a new project I started on ('74 Z1) and the 903 eng with it has 70mm pistons with stock cams. The pistons have deeper valve pockets than any of the pictures in my shop manuals. If anyone tell me if these are stock 1015 pistons or 10.25:1 CR by looking at the pics it would be helpful. PO knew very little about the eng. Thanks.
1978 KZ1000
1965 Harly Electra Glide
2002 Gold Wing
1974 Z1 900 project
What CR is this piston? was created by Gman
1978 KZ1000
1965 Harly Electra Glide
2002 Gold Wing
1974 Z1 900 project
Attachments:
Please Log in or Create an account to join the conversation.
- Gman
-
Topic Author
- Offline
- User
14 Sep 2008 09:38 #237100
by Gman
Sorry, messed up. Here's another view.
1978 KZ1000
1965 Harly Electra Glide
2002 Gold Wing
1974 Z1 900 project
Replied by Gman on topic What CR is this piston?
1978 KZ1000
1965 Harly Electra Glide
2002 Gold Wing
1974 Z1 900 project
Attachments:
Please Log in or Create an account to join the conversation.
- Sandy
-
- Offline
- User
- Fly High,Tony
14 Sep 2008 10:27 #237103
by Sandy
1977 KZ1000 A-1
Replied by Sandy on topic What CR is this piston?
Look like Wiseco's to me.
Clean off some of that mud,and see if there's a number stamped on them.
In the pic,the piston on the right is a stock 1015,and the other one is a Wiseco 1105.
Clean off some of that mud,and see if there's a number stamped on them.
In the pic,the piston on the right is a stock 1015,and the other one is a Wiseco 1105.
1977 KZ1000 A-1
Attachments:
Please Log in or Create an account to join the conversation.
- APE Jay
-
- Offline
- Banned
- Sandy
-
- Offline
- User
- Fly High,Tony
14 Sep 2008 11:10 #237108
by Sandy
Please Log in or Create an account to join the conversation.
- Old Man Rock
-
- Offline
- User
14 Sep 2008 11:18 #237109
by Old Man Rock
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Replied by Old Man Rock on topic What CR is this piston?
yes indeed.... 70mm is 1015cc piston.
The image is from a new (last two months) Weisco piston kit purchase.
OMR
The image is from a new (last two months) Weisco piston kit purchase.
OMR
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter
Phoenix, Az
Attachments:
Please Log in or Create an account to join the conversation.
- Gman
-
Topic Author
- Offline
- User
- Sandy
-
- Offline
- User
- Fly High,Tony
14 Sep 2008 19:55 #237171
by Sandy
1977 KZ1000 A-1
Replied by Sandy on topic What CR is this piston?
The 410 cams will work nicely.
I'm using them(see my sig) and I really like em.
I'm using them(see my sig) and I really like em.
1977 KZ1000 A-1
Please Log in or Create an account to join the conversation.
- APE Jay
-
- Offline
- Banned
- Sandy
-
- Offline
- User
- Fly High,Tony
15 Sep 2008 07:22 #237216
by Sandy
1977 KZ1000 A-1
Replied by Sandy on topic What CR is this piston?
APE Jay wrote:
Right beside the heavy-duty valve springs??
And they are on the shelf
Right beside the heavy-duty valve springs??
1977 KZ1000 A-1
Please Log in or Create an account to join the conversation.