Diamond Pistons use Metric or English Sized Rings?
12-16-2005, 08:23 PM
#1
Diamond Pistons use Metric or English Sized Rings? I am trying to figure out what size rings I need for my Diamond custom pistons. I measured the three ringlands and here's what I got...
Top: .061 (1.55mm)
Second: .061 (1.55mm)
Bottom: .150 (3.81mm)
I'm guessing I want metric rings, 1.5mm, 1.5mm, 3mm...? But isnt the bottom ringland supposed to be around 3mm? 0.81mm is quite a bit of play. Thanks!
Top: .061 (1.55mm)
Second: .061 (1.55mm)
Bottom: .150 (3.81mm)
I'm guessing I want metric rings, 1.5mm, 1.5mm, 3mm...? But isnt the bottom ringland supposed to be around 3mm? 0.81mm is quite a bit of play. Thanks!
12-17-2005, 09:54 AM
#3
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Rinf Answer You Would Use Metric, All Of Diamond Ls1 Pistons Are Mm.
Top 1.5mm
Second 1.5mm
Oil Ring 3.0mm
I Have Sold There Pistons Before, As Well As It Says On There Website.
Top 1.5mm
Second 1.5mm
Oil Ring 3.0mm
I Have Sold There Pistons Before, As Well As It Says On There Website.
12-17-2005, 01:09 PM
#4
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The oil ring land will measure larger due to the required support rail for the short compression height of the pistons (4.00" stroke, 6.125" rods, most likely). But yes, you do need 1.5/1.5/3mm ring package in your bore size.
