<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I’ve been running Wiseco pistons. Mine are flat top, made to order, and they will basically build them any way you want them. They can supply rings or build to match the ring specs you want. A set of six for the GT6 was $1,115 two years ago. I suspect that’s gone up.<div class=""><br class=""></div><div class="">Doesn’t help you with specs, but I have had good experience with them - both the pistons and the company to deal with. Lead time in spring 2021 was about seven weeks.</div><div class=""><br class=""></div><div class="">Scott</div><div class="">Gt6<br class=""><div><br class=""><div class="">On Feb 2, 2023, at 2:53 PM, Dave Riddle via Fot <<a href="mailto:fot@autox.team.net" class="">fot@autox.team.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><div class="WordSection1" style="page: WordSection1; caret-color: rgb(0, 0, 0); font-family: Verdana-Bold; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;"><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Well the Machine shop that can work on my TR3 engine said they are 4 months out so that certainly gives me time to order Pistons. For Street use and only the occasional Track day I have time to see about ordering from JE or Wisco rather than the flat top pistons from Moss that are manufactured in India (even if they are sent to the UK where they are machined). Does anyone have specs for a piston I could see about getting made or can recommend a set? My Engine does have an Isky Cam (not sure which one based on the Cam Chart that went around the other week).<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Currently the car does have flat top pistons in 87mm. Any real concerns moving up to an 89m? I have heard cooling can be an issue and the car does have a Wizard Radiator and an Oil Cooler<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><a href="http://www.microworks.net/" style="color: purple; text-decoration: underline;" class=""><span style="color: blue; text-decoration: none;" class=""><span id="cid:image001.jpg@01D936F0.CB9F83A0"><image001.jpg></span></span></a><o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-size: 12pt;" class="">Dave Riddle<o:p class=""></o:p></span></b></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Business IT Consulting<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; 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