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Registered
Join Date: Feb 2014
Location: CA
Posts: 108
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Comparability of parts
Hey All -
I’m scrounging up engine parts for my build but a lot of the parts come from different engines and not sure if I can use them all in one build. For instance, I’ve got: 964 case 993 heads 964 cam tower & rockers 911SC fan and chain boxes Questions: 1. Can 964 cam towers be used with 993 heads 2. Is it possible to use early SC chain boxes with 964 case? Any input appreciated. Thanks, Rusty |
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11-20-2018, 03:33 PM
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Registered
Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,468
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The 993 heads will accept the cam towers but you need the proper 8mm Allen bolts for 993 heads have no studs
I’m going to say no on the chain boxes because the chain rails are different and the oil to the tensioner is fed through the chain box. The tensioner does not have the idler As the Carrera usess Really two different motor layouts Bruce |
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11-20-2018, 05:38 PM
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Registered
Join Date: Feb 2014
Location: CA
Posts: 108
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Thanks Bruce. Looks like I’ll need to use 993/964 chain boxes and tensioners.
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11-20-2018, 08:38 PM
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Registered
Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
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Bruce - if you could figure out how to get oil to the cam towers/carriers, why couldn't you use the earlier chain boxes and tensioners with the 964 chain towers? Run an external line, figure out where to plumb into the chain towers? Some tapping and fittings and maybe drilling, but should work?
Though Porsche thought the 964 and later system of tensioning was better, so maybe on balance why kludge, assuming getting the later chain boxes isn't super expensive? |
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12-16-2018, 01:58 PM
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