 1.8 - 2.0 Frankenstein, Using 2.0 C&Ps on 1.8? |
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| SteveNMaine |
 Oct 18 2025, 05:31 AM
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#1
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Member  Group: Members Posts: 94 Joined: 12-August 24 From: Maine Member No.: 28,288 Region Association: None  |
Last winter I built a 2056 using a 1975 2.0. This winter I am rebuilding a 1974 1.8.
The 1.8 has one trashed C&P so I am wondering if I can use the old 2.0 C&Ps for my rebuild, using all four of course. Everything seems to fit; head to cylinder register, cylinder to block register, wrist pins for connecting rod, etc. There is only a +1mm difference in bore diameter. I am not trying to build a HP engine just something close to stock. Any insights? |
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| Mike D. |
Oct 18 2025, 10:15 AM
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OK, It runs now, and pretty good too! Group: Members Posts: 1,456 Joined: 3-January 03 From: Santa Clarita, Ca Member No.: 85 Region Association: None 
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IIRC, I think you would have very low compression. check wrist pin position between the 1.8 and 2.0 pistons.
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| SteveNMaine |
Oct 18 2025, 11:24 AM
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#3
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Member Group: Members Posts: 94 Joined: 12-August 24 From: Maine Member No.: 28,288 Region Association: None |
QUOTE(Mike D. @ Oct 18 2025, 10:15 AM)  IIRC, I think you would have very low compression. check wrist pin position between the 1.8 and 2.0 pistons. Yeah, that is one thing I had not checked. The top to the cl of the pin is different. |
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Posts in this topic
SteveNMaine 1.8 - 2.0 Frankenstein Oct 18 2025, 05:31 AM
brant Agreed. The wrist pin height is different
Get a ... Oct 18 2025, 10:18 AM SteveNMaine So, I see two different part numbers for 1.8 pisto... Oct 19 2025, 06:19 AM
chmillman
So, I see two different part numbers for 1.8 pist... Oct 19 2025, 06:24 AM Dave_Darling That's correct. The 1.8V engines ran somethin... Oct 19 2025, 07:56 PM |
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