If your ordering FORGED PISTONS from the larger custom manufacturers Theres usually optional machine work or parts on pistons that are not bargain basement, cast or hypereutectic pistons / re-builder designs, always call and ask,about options, because some manufacturers will include standard or tapered tool steel piston pins at slightly higher prices than the standard pins IF they include any at all, some will machine the pistons for dual snap ring or buttons at slight extra cost, and once you get into custom pistons theres even more options
the ring spacing and groove diam, and depth and width are not absolutely fixed, the pin diam. and location are seldom locked firm if your dealing with a custom piston, there are options
here is where you, or your machine shop can screw things up on ring to bore seal, you need to have the cylinders bored and honed to the correct size specified by the manufacturer of the pistons,after MEASURING THE PISTONS to verify their size per the piston manufacturers instructions, then gap the rings per the ring manufacturers instructions, when you hone the bores,get and use block deck hone plates, during the hone process , keep in kind you want to use the same (STUDS OR BOLTS) the machine shop used and the same torque settings they used when the cylinders were honed with deck plates or the distortion of the bore and ring seal won,t be identical (exactly round)or ideal, keep in mind the piston side clearance must match what the piston manufacturer states.
you might want to read thru these threads and their sub links
https://uempistons.com/p-32-piston-compression-height-calculator.html
https://www.lunatipower.com/compression-height
http://www.wallaceracing.com/Calc-Piston-Pin-Height.php
http://garage.grumpysperformance.com/index.php?threads/forged-or-not.13226/#post-69018
viewtopic.php?f=53&t=2610&p=6737&hilit=coating+thermal#p6737
viewtopic.php?f=50&t=501&p=11829&hilit=clay+clearance#p11829
viewtopic.php?f=53&t=4472&p=11747&hilit=domes#p11747
THERMAL BARRIER DESIGNED TO REDUCE HEAT TRANSFER< AND INCREASE POWER
oil shedding coating on the under surface of the piston designed to speed heat transfer and reduce oil retention to reduce weight
outer skirt coating designed to increase wear resistance and retain oil film
read and look thru the links
viewtopic.php?f=53&t=978&p=11728#p11728
http://www.probeindustries.com/
https://www.flatlanderracing.com/trwpistonschoose.html
http://aftermarket.federalmogul.com/en- ... 7ibJ7FwU4M
http://www.jepistons.com/
http://www.venolia.com/
http://www.wiseco.com/
http://www.trickflow.com/search.asp?Ntt ... wordSearch
http://www.flatlanderracing.com/manleypis-chevy03.html
http://www.rosspistons.com/information/
http://www.ariaspistons.com/
https://www.uempistons.com/
http://www.pistons-online.com/protru_chevy.asp
http://www.kb-silvolite.com/assets/auto ... atalog.pdf
http://www.wiseco.com/PDFs/Wiseco-ChevySmallBlock23.pdf
http://www.rehermorrison.com/PdfFiles/R ... nChart.pdf
http://www.kb-silvolite.com/performance ... tion=start
http://www.jepistons.com/
http://www.venolia.com/
http://www.probeindustries.com/
http://www.flatlanderracing.com/trwpistonschoose.html
http://www.campbellenterprises.com/speedpro.htm
http://www.trickflow.com/egnsearch.asp? ... toview=sku
http://www.mahle.com/C125705E004FDAF9/C ... G642WEBBEN
http://www.flatlanderracing.com/manleypis-chevy03.html
http://www.skipwhiteperformance.com/det ... 3831P-1230
http://www.manleyperformance.com/niche/ ... tons.shtml
http://www.diamondracing.net/products.asp
the ring spacing and groove diam, and depth and width are not absolutely fixed, the pin diam. and location are seldom locked firm if your dealing with a custom piston, there are options
here is where you, or your machine shop can screw things up on ring to bore seal, you need to have the cylinders bored and honed to the correct size specified by the manufacturer of the pistons,after MEASURING THE PISTONS to verify their size per the piston manufacturers instructions, then gap the rings per the ring manufacturers instructions, when you hone the bores,get and use block deck hone plates, during the hone process , keep in kind you want to use the same (STUDS OR BOLTS) the machine shop used and the same torque settings they used when the cylinders were honed with deck plates or the distortion of the bore and ring seal won,t be identical (exactly round)or ideal, keep in mind the piston side clearance must match what the piston manufacturer states.
you might want to read thru these threads and their sub links
https://uempistons.com/p-32-piston-compression-height-calculator.html
https://www.lunatipower.com/compression-height
http://www.wallaceracing.com/Calc-Piston-Pin-Height.php
http://garage.grumpysperformance.com/index.php?threads/forged-or-not.13226/#post-69018
viewtopic.php?f=53&t=2610&p=6737&hilit=coating+thermal#p6737
viewtopic.php?f=50&t=501&p=11829&hilit=clay+clearance#p11829
viewtopic.php?f=53&t=4472&p=11747&hilit=domes#p11747
THERMAL BARRIER DESIGNED TO REDUCE HEAT TRANSFER< AND INCREASE POWER
oil shedding coating on the under surface of the piston designed to speed heat transfer and reduce oil retention to reduce weight
outer skirt coating designed to increase wear resistance and retain oil film
read and look thru the links
viewtopic.php?f=53&t=978&p=11728#p11728
http://www.probeindustries.com/
https://www.flatlanderracing.com/trwpistonschoose.html
http://aftermarket.federalmogul.com/en- ... 7ibJ7FwU4M
http://www.jepistons.com/
http://www.venolia.com/
http://www.wiseco.com/
http://www.trickflow.com/search.asp?Ntt ... wordSearch
http://www.flatlanderracing.com/manleypis-chevy03.html
http://www.rosspistons.com/information/
http://www.ariaspistons.com/
https://www.uempistons.com/
http://www.pistons-online.com/protru_chevy.asp
http://www.kb-silvolite.com/assets/auto ... atalog.pdf
http://www.wiseco.com/PDFs/Wiseco-ChevySmallBlock23.pdf
http://www.rehermorrison.com/PdfFiles/R ... nChart.pdf
http://www.kb-silvolite.com/performance ... tion=start
http://www.jepistons.com/
http://www.venolia.com/
http://www.probeindustries.com/
http://www.flatlanderracing.com/trwpistonschoose.html
http://www.campbellenterprises.com/speedpro.htm
http://www.trickflow.com/egnsearch.asp? ... toview=sku
http://www.mahle.com/C125705E004FDAF9/C ... G642WEBBEN
http://www.flatlanderracing.com/manleypis-chevy03.html
http://www.skipwhiteperformance.com/det ... 3831P-1230
http://www.manleyperformance.com/niche/ ... tons.shtml
http://www.diamondracing.net/products.asp
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