HV SRT said:
Custom fit with bigger GM style wrist pins with wire locks.
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Pistons
- Thread starter HV SRT
- Start date
Custom fit with bigger GM style wrist pins with wire locks.
Dom426
Full Access Member
i have run diamonds for quite some time i might have someone interestes in your used pistons
Bone said:
..:dito: ...I forgot what I put in mine but I told my builder to get the best...took forever to seat but now I go 2000 miles between oil changes and the oil level never moves off the full mark and blow by is almost nothing...
I did. My builder and the machine shop both told me the pistons were looser than they like to see. The machine shop did sell me different rings. He did not like the rings that I bought with the pistons. I change the oil every 1,000 miles and it burns 1 to 2 quarts depending on how hard I drive it. And no oil in my puke tank. The oil comes out very black because of the gas getting by the rings.What clearence our you guys have with your pistons? Mine are at 6.5 To7 thousands.LoveThisTruck said:Damn man, didn't you just have that motor built
Wiseco,9.6-1 from stinky. top gap 10, second ring is at 20
I was asking what the clearence is between the block and piston. But that would be good to know what compression people are running. I'm at 9.5 to 1. My builder and machine shop thought I should be at between 8.5 to 9 to 1.
SNAKEGUTS
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HV SRT said:
You sould talk to Sean Roe. I was considering a similar set up as you.
When I talked to Sean about CR for the Roe he told me not to go below 9.2:1.
I am thinkin the Roe could not move enough for lower CR. However it sounds
like yours is movin some air.:rock:
Call Sean see what he thinks.
HV SRT said:
That sucks. Not sure on the clearance:dontknow: have to check my build sheet.
My CR is 9.3:
ARRESTmeRed04
Active Member
6.5 to 7 thousands? wow i though they should be closer to 3.5-4.5...
since the roe only pushes so much air, iwould stay around the oem compression of 9.6 or 9.7, wouldnt drop it too much .
ARRESTmeRed04 said:
It depends on the piston skirt cam shape, the type of material used to make the piston, skirt thickness, skirt length, ring land thickness, dome thickness and other factors.
Several years ago, forged pistons were installed at .008"+ piston-to-wall, and cast were installed considerably tighter; but with new designs and alloys it is BEST to talk to the manufacturer to see what they recommend for clearance, for the application.
Ronnie
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HV SRT said:
I'm running at 9:2:1 CR with a ROE.:rock:
Yellow venom said:
Hope it works well for ya Joe !!
ARRESTmeRed04
Active Member
.008"?!?! thats insanerottenronnie said:
ARRESTmeRed04 said:
Using forged pistons, I clearanced the old 440 Dodge drag engines there (street/strip).
They were a little clunky on a cold start but quiet when they warmed up.
Some guys ran even looser than that, but .008" seemed to work very well..
.005", and they would rub on the walls.
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