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Reliable to bore out & replate cylinders

I'm planning to rebuild a 993 based hot rod motor and want to reliably increase the displacement. Here's my question - can stock 993 cylinders be reliably bored out from 100 mm to 101 mm or slightly larger..

I've researched threads online where some have concluded that boring to 102 would be too much and would likely go out of round quickly. So, Inquiring to see if stock cylinders can be reliably bored to a safer measurement like 100.7, 101 or 101.3 mm to increase displacement to 3.7. I realize that I'll need custom pistons.
Old 02-04-2018, 01:46 PM
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L&N engineering will get it done for the same price as millennium. They ship out to millennium to have them done. But they also take all the critical measurements to match them correctly with your pistons and spec out the correct finish. Glad I did mine that way found out they needed cryotreated due to being out of round from detonation. So l&N sent them out to get them cryotreated then they were bored and plated to match the individual pistons.
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Old 02-04-2018, 06:28 PM
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Good tip on going through L&N. I was aware of Millenium but not sure how much stock 3.6 cylinders can be reliably bored out before getting too thin.

Any thoughts on that issue? I'd like to bore from 100 to 101.3 or even 102. Maybe a call to L&N is in order.
Old 02-04-2018, 07:57 PM
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Honestly it’s prob not worth the effort to bore and replays them if you need custom pistons then too. Id just get 102 cylinders and matched pistons.

I sent my 3.6 cylinders out to LN a couple years ago and had them replayed for my rebuild. I matched them with a set of FSR JE pistons. LN supplied everything and I bought new rods from R&R.
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