step ONE
if the bores not concentric and consistent in its surface Finish or if you had the bore honed without the use of torque plates simulating a cylinder heads bolted in place, the rings WILL NOT SEAL as effectively , as they would if you had prepped the bores correctly or won,t seal effectively at all.

READ THE LINKS BELOW

viewtopic.php?f=51&t=588&p=4946&hilit=honing+plate#p4946


http://www.enginebuildermag.com/Article ... _know.aspx

http://www.aa1car.com/library/honing98.htm

http://www.circletrack.com/techarticles ... ation.html

viewtopic.php?f=53&t=1797&p=4586#p4586

http://www.rosspistons.com/information/index.php

http://www.enginebuildermag.com/Article ... ishes.aspx

http://www.enginebuildermag.com/Article ... inish.aspx

http://www.aa1car.com/library/ar293.htm

http://www.enginebuildermag.com/Article ... ishes.aspx

http://www.enginebuildermag.com/Article ... rings.aspx

http://www.hastingsmfg.com/ServiceTips/ ... mendat.htm

http://www.stockcarracing.com/techartic ... index.html

http://www.circletrack.com/howto/4639_m ... index.html

http://www.carcraft.com/techarticles/pi ... index.html

http://www.enginebuildermag.com/Article ... oning.aspx

http://www.enginebuildermag.com/Article ... shing.aspx

http://www.stockcarracing.com/techartic ... index.html





gapless ring

now years ago, we were instructed to leave the second ring gap at a tighter .004 per inch of bore with the upper top ring having the larger end gap due to the higher heat levels, it operates under ,well extensive testing in recent years shows that
(1)the second ring gap needs to be larger because if significant cylinder pressure builds between the top and lower ring the upper ring seal is quickly lost
(2)theres very little cylinder pressure lost thru the ring gaps in the thousandths of a second the rings are compressing the fuel/air mix, or during the power stroke, because most of the blow by, is the result of less than effective ring to cylinder wall seal
(3) ring seal is destroyed if the ring gap allows the rings to contact, or the rings butting destroys the piston lands
(4) ring gaps up to about .045 have very little effect on blow by or oil use

http://www.kb-silvolite.com/article.php ... ad&A_id=64
Application

Bore x
High-Performance Street / Strip
.0045”Top Ring
.0055”2nd Ring
Street-Moderate Turbo / Nitrous
.0050”Top Ring
.0055”2nd Ring
Late Model Stock
.0050”Top Ring
.0055”2nd Ring
Circle Track/Drag Race
.0055”Top Ring
.0060”2nd Ring
Blown Race Only
.0065”Top Ring
.0070”2nd Ring
Nitrous Race Only
.0070”Top Ring
.0075”2nd Ring

http://www.probeindustries.com/Chevy_38 ... p3832f.htm]Probe website

look closely at the connecting rods one edge of the main bearing are is beveled noticeably more than the other that beveled side faces away from the rod its paired with because it matches the slight radiased bevel of the crank journal
many builder class pistons are designed to go in, in either orientation ,and have both the valve notches and piston pin offset that are identical but most performance pistons have a dot or an F stamped on the crown indicating the side facing the front of the engine, naturally the rod big end bevels face the crank counter weights on each pair and the non-beveled big end faces the matched rod

http://www.kb-silvolite.com/assets/kb_installation.pdf
when in doubt call the PISTON manufacturer and ASK!


READ THIS THREAD
viewtopic.php?f=53&t=247

raceman6135 posted this additional info

"Offset wrist pins"

The above info is listed on the Probe website for piston P3832F. "Offset wrist pins" means that there will be 'left' and 'right' bank pistons.

As Grumpy mentioned, there will be some indication on the piston as to its orientation in the block. Here are some pix of pistons which use notches, dots, or arrows: