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birkinboy |
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#1
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Newbie ![]() Group: Members Posts: 3 Joined: 6-February 13 From: mass. Member No.: 15,489 Region Association: North East States ![]() |
Starting on the rebuild on my 1.8 and looking into a Big Bore kit. See many brands out there. Some look good others look like Chinese junk. Atlanta has Biral cast kits,
any idea what that is and R they any good? Ebay has the QSC kits avail, they are cheap and look it. The old adage 'you get what U pay for' is usually true. Heard good things about the NPR kits but is it true they are NLA? I did locate a new set of NPR's for $400. Seems like a good price, Is that reasonable? |
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Dave_Darling |
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#2
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914 Idiot ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 15,209 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California ![]() ![]() |
Biral usually refers to a cast-iron liner with aluminum fins shrunk onto them. Aluminum has better thermal conductivity, but the iron provides the wear surface. They're more expensive to make than straight cast-iron cylinders.
--DD |
lonewolfe |
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#3
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Senior Member ![]() ![]() ![]() Group: Members Posts: 819 Joined: 12-September 11 From: Oakland, CA Member No.: 13,549 Region Association: Northern California ![]() |
Biral usually refers to a cast-iron liner with aluminum fins shrunk onto them. Aluminum has better thermal conductivity, but the iron provides the wear surface. They're more expensive to make than straight cast-iron cylinders. --DD Hey Dave! Do you know if the Birals that AA sells are good quality? They've caught my eye but I don't know of anyone running them. |
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