OUR ONLINE CHECKOUT is CLOSED and we are NOT accepting any NEW orders at this time.

We are still fulfilling and shipping previously submitted and/or delayed order requests (as product availability allows) UNTIL NOVEMBER 15th 2022.

But after November 15th, all still pending backordered unshipped items will be automatically CANCELLED **(except for any special ordered drop-shipped or made/machined-to-order items).

Our ability to respond to emails is greatly hampered by being under-staffed during this downsize transition time. But we continue to endeavor to answer email inquiries as best we can. And we will continue responding to emails through until early March 2023 because we are wholly committed to resolving any other issues that may arise from previous sales. It is still UNCERTAIN, but we may re-open a substantially downsized version of our store again in the Spring of 2023.

We sincerely appreciate your patience, understanding during this period of restructuring and/or closing. And a huge thank you to all of you whose support and loyalty we have been the beneficiary of over the 23 years that we have worked diligently to support the information and parts needs of the aircooled VW community!


  VW Parts Catalog > Engine Parts >

Engine Case Machining, BIG BORE, 88mm, 90.5mm, 92mm, and 94mm Bores
Engine Case Machining, BIG BORE, 88mm, 90.5mm, 92mm, and 94mm Bores


 
Engine Case Machining , BIG BORE, 88mm, 90.5mm, 92mm, and 94mm Bores are done on cases purchased from Aircooled.Net. Our case boring is done to the highest standards, with a stepped bore to maximize case strength for full piston and cylinder support.
If you are in a hurry for machine work, plan ahead! Cases are machined to order, because there are so many combinations of machine work. Case machining can take up to 3-4 WEEKS depending on the time of year and the current order backlog. So please do not order case machining and expect it to ship the same day (standard cases and fully done "Super Cases" are ready to ship same day). Backlogs are worst in spring and early summer, in the fall or winter they ship quicker.
It's worth noting that "welded #3" is NOT NEEDED, even when boring to 94mm bores! This process distorts the case, and requires line boring to resize the flywheel main bearing. This process was needed with non deep-studded cases, because of the way the head stud (#3 top outside) pulled, and the main case bolt pulled the other way, cracking the case.
When VW moved the stud to the "deep stud" version, this stress was removed, as so was any need to weld the case web behind #3. We routinely run unwelded cases bored for 94s without issue, and sleep just fine at night. ;-)
Price: $75.00


: CASE-MACHINING-BIG-BORE

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Engine Case Machining , BIG BORE, 88mm, 90.5mm, 92mm, and 94mm Bores are done on cases purchased from Aircooled.Net. Our case boring is done to the highest standards, with a stepped bore to maximize case strength for full piston and cylinder support.

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