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Old 09-06-2012, 10:07 AM
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Default Looking for 993 3.6 Engine

Anyone know of any 993 3.6 that need a good home? Preferably would like a 1995 model year. Starting to look for engines again for my RSR build. Would like to find something local before I travel to look at others I’ve found. Should be getting back shore side here in a few weeks . Thanks Guys!
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Old 09-06-2012, 10:17 AM
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Originally Posted by ducatithunder View Post
Anyone know of any 993 3.6 that need a good home? Preferably would like a 1995 model year. Starting to look for engines again for my RSR build. Would like to find something local before I travel to look at others I’ve found. Should be getting back shore side here in a few weeks . Thanks Guys!
If you're looking for a 95 (i.e. no varioram), any reason you don't want to look at 964 engines? Other than hydraulic lifters and a different crank design, basically the same engine. Just curious, seems like you're limiting your options somewhat.

FWIW, 3.6 + old 911 = sh*tload of fun.
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Old 09-06-2012, 10:28 AM
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I thought about going the 964 route but after reading and talking to guys who have done it would if they could do it again just do a 993 instead. I personally wanted a 993 so I don’t have to worry about valve adjustments or the early 964 sealing issues. One less thing to maintain in my fleet of high maintenance cars, lol. The 993 engine seems bullet proof for the most part. If the money is right and I can get a 964 for the right price then I might take it.

Thanks!
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Old 09-06-2012, 10:44 AM
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I thought about going the 964 route but after reading and talking to guys who have done it would if they could do it again just do a 993 instead.
Not trying to push the 964 angle, just giving you another data point: I have a (late) 964 engine in my car. No regrests at all. I've never really wished I had a 993 except for Varioram. Solid lifters are more maintenance but also more track-friendly, so that was actually a benefit for me.
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Old 09-06-2012, 10:57 AM
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Sealing issues are only on the early 964 engines, the ones without the cylinder-to-head gaskets. And at this point, most of those have been dealt with already.
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Old 09-06-2012, 11:05 AM
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Bob T. has a '96 which he rebuilt and only has 4hrs on it. Was avaialble a couple months ago, not sure it still is.

http://forums.pelicanparts.com/porsc...am-engine.html
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Old 09-06-2012, 11:46 AM
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how often are valve adjustments? 15K miles? 5 years? Good luck on your search. Sounds like a fun car once built!
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Old 09-06-2012, 12:02 PM
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I always thought that the 993 RSR's did not have hydraulic valves. Something about the oil and sustained high rpm's. Of course, if racing isn't part of the end goal, then hydraulic is the way to go. I know I wish my street 964 had them.
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Old 09-06-2012, 01:14 PM
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Originally Posted by Manny Alban View Post
I always thought that the 993 RSR's did not have hydraulic valves. Something about the oil and sustained high rpm's. Of course, if racing isn't part of the end goal, then hydraulic is the way to go. I know I wish my street 964 had them.
Yes, I thought the RSR had adjustable rockers vs hydraulic ones. I found a few 3.8 rsr cases and p's and c's but it was scary expensive. They used the 964 crank and adjustable rockers. I found a few variorams and would like to get one but I am eventually going to discard the intake system and run either PMO carbs or an ITB EFI equivalent to retain the "vintage" look but modern power and drivability. The choices are endless.

Jazz Bass -
Im not against the 964's but if there wasn’t a huge price difference then I would probably opt for the 993 variant. Do you know what the lash intervals are off hand?

Also if anyone has a long block assembly I would also be interested. Im open ... feelers are out. Thanks guys!
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Old 09-06-2012, 01:38 PM
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Im not against the 964's but if there wasn’t a huge price difference then I would probably opt for the 993 variant.
Sure, as would I. All things being equal (or close enough) newer is usually better. I was just responding to the fact that you seemed to indicate originally that you only want a 95+ 993 engine. I guess my point was that for a backdate/3.6 upgrade type project, the 964 engine is a decent candidate as well, doubly so if varioram is not a consideration.

Outside of the lifter thing (which is either a good thing or bad thing depending on your intended purpose), there is very little practical difference between the two engines to be honest. In the 4 years I've had a 964 engine in my 85, I've never wished I had gone with a 993 engine. And this is coming from someone who has taken ex post facto second guessing and hand wringing to a whole new level.

There were just as many 964s made as 993s, so opening your search to all of them basically doubles your potential pool of available engines. All of the engines have their quirks, FWIW. Early 964s with sealing issues, 993s with carbon buildup problems. Being diligent and finding a good example without issues is the most important thing to consider.

Good luck with the search - post pictures of the build process. I love seeing these kind of cars come together.
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