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Registered
Join Date: Oct 2007
Location: Montreal, Qc.
Posts: 45
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Camshaft from a 2.4L Engine into a 2.7L Engine
Can someone tell me if a camshaft form a 2.4L engine (piece # 911-105-142-00 & 911-105-141-00) can fit into a 2.7L engine (piece #911-105-144-00 & 911-105-143-00)?
Thanks. Julien
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2005 997 Carrera |
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08-20-2009, 06:11 PM
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Join Date: May 2003
Posts: 3,346
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The cams will fit into the engine but the valves will hit the pistons when you turn the engine over. This assums you have a stock 2.7 with CIS pistons.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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08-20-2009, 07:58 PM
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Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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If these cams are off a 2.4 CIS engine which they appear to be, they will be fine.
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08-21-2009, 01:52 PM
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Join Date: Dec 2003
Location: Arapahoe County, Colorado, USA
Posts: 9,032
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Like many things, - it depends.
The ’73.5 911T CIS cams are 3-bearing (nominal 47 mm). The ’78 on 911 cams are 4-bearing (49 mm). The later 2.7 (’76-’77?) Had undocumented 4-bearing cam housings with the 4th bearing oiling hole plugged. I have reason to believe there were 3-bearing housings used with 4- bearing cams (47 mm) – the 4th bearing just ran free. I have never seen a 2.7 with 4-bearing (49 mm) but I wouldn’t be surprised. So – look at your parts carefully. Above, the subject is piston-to-valve clearance. Critically important. Best, Grady
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08-21-2009, 02:26 PM
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