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Join Date: Jan 2018
Posts: 878
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911s pistons?
My 67S engine is pulled apart.
Where. Do I find a part number on the pistons confirming.they are the real deal. ??? I already think the cams are not S Lyndon |
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04-07-2020, 04:39 AM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,471
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There is casting numbers inside the piston with manufacture name if original equipment
There is a reference list on here but I looked a little and didn’t see it I have a printed version in garage. Bruce |
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04-07-2020, 10:11 AM
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Join Date: May 2016
Posts: 2,512
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Post a pic do they have crazy domes ?
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04-07-2020, 11:44 AM
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Registered
Join Date: Feb 2004
Location: denver
Posts: 1,144
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some 2.0L casting numbers
2.0 65-67 80mm Mahle 80v37 2.0 E 69 80mm Mahle 80v79 2.0 S 67-68 80mm Mahle 80P26 2.0 S 69 80mm Mahle 2.0 906 80mm Mahle 10.3 80P26 john |
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04-07-2020, 12:41 PM
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Posts: 878
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   Ok the pistons. ??? I will clean them later. Now it looks like I don't have S Cams??? Should I get them or is what I have ok. Its a 901 /02 engine I will check that I S heads. I think they are correct because they are all 9/ 66 |
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04-07-2020, 03:41 PM
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Posts: 878
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 Ok 79.95 100 Sp0.05 Made in Germany |
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04-07-2020, 04:07 PM
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It's a 914 ...
Join Date: Jan 2008
Location: Ossining, NY
Posts: 4,695
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Look on the underside of the crown for the numbers targe72e mentions
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04-07-2020, 07:31 PM
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80226E I think
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04-07-2020, 07:40 PM
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 Jackpot. 80P26 is a 67 S piston. So I will chase a set of rings up. So are my cams ok or should I chase a STD set. Lyndon |
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04-07-2020, 08:12 PM
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Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,471
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You should see the 69S domes...
Bruce |
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04-08-2020, 08:22 AM
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Ok looks like I need oversize pistons 😦 .5 mm any thoughts or advice be appreciated.
One thought can they be coated and then use my original pistons ? Lyndon |
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04-08-2020, 05:23 PM
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Join Date: Feb 2004
Location: denver
Posts: 1,144
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the cam part number is for a T cam, low performance unless they have been welded up and reground. They will have plenty of clearance with S pistons but you would make better power with more aggressive cams.
john |
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04-09-2020, 11:58 AM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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What number is stamped on the end of the cam? Does the left cam have a MFI drive?
__________________
Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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04-09-2020, 12:24 PM
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Join Date: Jan 2018
Posts: 878
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 03 on the end of one cam. So the. T cams arnt much good. Is an E cam better |
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04-09-2020, 03:50 PM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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E or Solex cams would be a good street cam. You probably could get those T cams reground to E or Solex specs. S cams are cool, but your motor will be a dog below 5000 rpm. I guess there is a chance the cams you have were reground. I'm not sure what the best way to check would be.
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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04-09-2020, 06:17 PM
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My Garage
1971 Porsche 911
Baja Bug
