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> building a 1911 from a 1.7, will my existing heads work?
bradtho
post Aug 22 2011, 11:18 PM
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I'm thinking about taking my stock 1.7 to a 1911. Some old threads seem to suggest that you can't do this with the 1.7l heads, while others seem to suggest it's fine. Can anybody set me straight on if I would need new heads, if they'd need to be machined, or if I'm good to go?

Also, I've got 2 engines all with original german cylinders. Am I better off taking the best 4 and boring them out or going with new chinese cylinders (local shop recommends QSC). I've been thinking if I've got 4 decent ones that the OE cylinders would likely be better than the chinese stuff.

anything else I should be thinking about?
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bradtho   building a 1911 from a 1.7   Aug 22 2011, 11:18 PM
Jake Raby   Yes you can do this with the existing heads if you...   Aug 23 2011, 12:10 AM
Valy   ... Jake, Nice write-out but you better fix the ...   Aug 23 2011, 03:02 PM
Vacca Rabite   My 2056 uses 1.7 heads. It can be done. That said...   Aug 23 2011, 07:01 AM
HAM Inc   What sort of performance are expecting from your 1...   Aug 23 2011, 07:48 AM
bradtho   What sort of performance are expecting from your ...   Aug 23 2011, 08:58 AM
69telecaster   35 years ago I bought a set of 96mm cylinders/pist...   Aug 23 2011, 08:39 AM
HAM Inc   1.7's will work fine, but you'll need to h...   Aug 23 2011, 10:49 AM
Jake Raby   I didn't post it to sell stuff :-) The majorit...   Aug 23 2011, 03:20 PM
jmill   Jake, I seem to recall you posting a dyno sheet an...   Aug 23 2011, 04:41 PM
TargaToy   Yes, Jake. Can you please post the 1911 stats bef...   Aug 23 2011, 07:46 PM
TargaToy   :bump:   Aug 26 2011, 05:59 PM
jmill   Found it. http://www.914world.com/bbs2/index.php?...   Aug 26 2011, 06:31 PM
7275914911   Found it. [url=http://www.914world.com/bbs2/inde...   Aug 27 2011, 10:00 AM
pete-stevers   Funny thing i was thinking along the same lines......   Aug 26 2011, 07:54 PM
pete-stevers   I would love to see how much juice could be made f...   Aug 26 2011, 07:55 PM
HAM Inc   How about a 90.5 x 78.4=2017cc's. Use the 1.7 ...   Aug 27 2011, 09:41 AM
r_towle   How about a 90.5 x 78.4=2017cc's. Use the 1.7...   Aug 27 2011, 01:50 PM
TargaToy   THANK YOU for finding and posting the link. This ...   Aug 27 2011, 12:36 PM
jmill   Try this one.... 1911 Recipe That's it...   Aug 27 2011, 02:18 PM
LukeD   [quote name='7275914911' post='1530648' date='Aug...   Jun 25 2015, 10:23 PM
HAM Inc   The nice thing about the long stroke-small bore ...   Aug 27 2011, 02:29 PM
pete-stevers   What type of carbs did you run in that set up?   Aug 27 2011, 03:22 PM
bam914   My dad has a 1911 in his 914. Len did the heads. ...   Aug 27 2011, 03:27 PM
ripper911   My dad has a 1911 in his 914. Len did the heads....   Aug 28 2011, 05:38 PM
HAM Inc   I don't remember what it ended up with. Once...   Aug 27 2011, 09:09 PM
bradtho   OK, so Ham says no-go on boring my OE 1.7 cylinder...   Aug 27 2011, 11:40 PM
HAM Inc   I'm not going to comment on the Chinese cylind...   Aug 28 2011, 07:59 AM
lonewolfe   I'm not going to comment on the Chinese cylin...   Aug 3 2015, 01:50 AM
914_teener   I'm not going to comment on the Chinese cyli...   Aug 3 2015, 09:48 AM
Dave_Darling   There were 96es that fit 1.7 heads. They were ver...   Aug 28 2011, 06:21 PM
rhodyguy   interesting what you can find with a tablet. jake...   Jun 25 2015, 06:12 PM
Dave_Darling   It'll require some tweaking of the MPS, and po...   Jun 26 2015, 08:49 AM
MikeInMunich   It'll require some tweaking of the MPS, and p...   Apr 12 2020, 12:34 AM
lonewolfe   Who makes and sells the 90.5 stroker pistons?   Aug 3 2015, 10:35 AM
rhodyguy   read jakes take on the 1.8 heads. in most cases th...   Aug 3 2015, 10:37 AM
914werke   Resurrection: No one appeared to answer the questi...   Nov 2 2017, 02:18 PM
Dave_Darling   Check with AA Pistons. The 90.5 were a stock repl...   Nov 2 2017, 05:28 PM
914_teener   Wow....it is hard to believe that was two years ag...   Nov 2 2017, 07:09 PM
Montreal914   About 30 years ago :rolleyes: I had a 1776cc type...   Nov 2 2017, 08:14 PM
914werke   About 30 years ago :rolleyes: I had a 1776cc typ...   Nov 2 2017, 08:51 PM
Montreal914   About 30 years ago :rolleyes: I had a 1776cc ty...   Nov 2 2017, 09:16 PM


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