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Registered
Join Date: Oct 2012
Location: Southern Cal
Posts: 111
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A dumb question
I see people advertising that their rebuilt motor has a 7R Mag case. What is a 7R Mag case? How is it different from any other Mag case? Just curious
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11-23-2015, 07:36 AM
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Registered
Join Date: Dec 2014
Posts: 13,888
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They where the strongest of the mag cases had some extra reinforcement for bearing saddles et.
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11-23-2015, 07:53 AM
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The 7R refers to the p/n on the case. There were small differences between the cases like the addition of piston squirters in 71 or oil bypass in 76. I think Porsche used mag cases up through the 1977 2.7. Here's the write-up Tom Butler did on the differences.
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72 911T 2.4 MFI 2017 Escape SE 2.0 turbo 2020 Honda Civic Touring Sport 1.6 turbo 10' Madone 5.2/17' Lynskey ProCross |
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11-23-2015, 12:52 PM
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Rust Rocket
Madone
