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Posted by: pbob42 Feb 24 2013, 05:46 PM

Showed my '73 to a guy today and he said I have a 1.8 not a 2.0 because 2.0 plugs should come in at a 45 degree angle. I am a little confused. I buy 2.0 parts. My serial number is infront of the oil fill hole. Can you guys help me out here?

Posted by: Rockaria Feb 24 2013, 05:50 PM

Looks like a 1.7 actually... A 73 2.0 has a more square air filter housing, and there are only three bolts holding the intake plenum to the heads.

73 2.0 engine number:


73 2.0 air cleaner, plenum:

Posted by: jimkelly Feb 24 2013, 05:52 PM

if you have an MPS, you have a 1.7 or 2.0

seems you have 4 nuts holding your intake runners to the heads, so that should be 1.7 if you have an mps

that sn# tag is unique

Posted by: pbob42 Feb 24 2013, 06:09 PM

here is a shot without the air cleaner.

Posted by: Rockaria Feb 24 2013, 06:12 PM

It looks exactly like a 1.7 with D-Jet fuel injection.

Posted by: pbob42 Feb 24 2013, 06:13 PM

what a crummy day. I lost 15% of my motor.

Posted by: The Cabinetmaker Feb 24 2013, 06:15 PM

A definite 1.7

Posted by: billh1963 Feb 24 2013, 07:02 PM

Spark plugs are the giveaway as well....1.7

Posted by: JawjaPorsche Feb 24 2013, 07:06 PM

I have a 1.7 and it looks exactly like yours. 1.7 are good engines. Porsche put them in 914's for four years. Don't be disappointed, I think you hit the jackpot!

I would address some fuel hoses including injector hoses. Also replace clamps with proper fuel clamps.

Posted by: 914Sixer Feb 24 2013, 07:14 PM

1.7 engine numbers start with a W, EA, EB. I have never seen a number like what you are showing. 1.7, 1.8 Numbers are on a diagonal on engine block NOT at the filler neck.

Posted by: 442nd914s Feb 24 2013, 07:38 PM

It's defintely not a 2.0. I have a '73 2.0 Djet thats looks nothing like that. And plugs are at +/- 45 degrees. Having said that, my air box is slight different. It doesn't have the "x/criss cross" pattern on the top. Its square with parallel bars.

Posted by: euro911 Feb 24 2013, 08:00 PM

It looks like a 1.7, but until you tear it apart and look inside (to measure all the components), it's anybody's guess

The replacement tag is from a re-manufacturing shop (like GEX)

Posted by: Tom_T Feb 24 2013, 08:23 PM

It looks like you can see the original engine case number peeking from behind that tag attached with the rivets. My guess is that the outfit who rebuilt the motor at sometime affixed their own case/rebuild no. with the rivets.

It's not a Porsche factory rebuild, cuz they'll have an "X" at the end of the no. stamped in the case for "Exchange" motor IIRC.

PS - It looks like Mark was thinking the same thing while I was typing! ;-)

Posted by: 76-914 Feb 24 2013, 08:37 PM

A 1.7 will keep up w/ the 1.8's & 2.0's just fine in the twisties. And isn't that where we drive them?

Posted by: euro911 Feb 24 2013, 08:38 PM

I have a 1.8L long block with a similar tag ... looks like it's from the same rebuilder

Posted by: pbob42 Feb 25 2013, 07:20 AM

well that answers the tag - thanks guys