---

Register Log In 4x4Wire TrailTalk Forums Mitsubishi Diesels 4d55 to 4d56 conversion? Forums User List Calendar Active Threads Search Forum Help

Previous Thread Next Thread Print Thread Rate Thread 4d55 to 4d56 conversion? #939436 04/08/09 09:58 PM Joined: Apr 2009 Posts: 6 Las vegas NV USA M mightydiesel80 OP Need a Spot I was just wondering if anyone knows on these little engines is it possible to go from 2.3 to 2.5 by just replacing connecting rods, pistons, crankshaft. I know the difference is in the stroke, from 90mm 2.3, to 95mm 2.5. Is there any other difference on the engine.? I just bought an 83 mighty max 4x4 turbo diesel, I'm planning on installing a strait 2.5" pipe and a custom made down pipe, electric cooling fan, and intercooler. Any other ways to increase hp/torque and MPG???? Re: 4d55 to 4d56 conversion? [Re: mightydiesel80] #939437 04/10/09 02:35 AM Joined: Feb 2001 Posts: 913 Ogden, UT L Lee N Rock Warrior I've briefly looked at this and it seems possible. I just need to find the deck height specs on a 4D55 to compare to the 4D56. It looks like the 56 uses different rods & pistons to compensate for the longer stroke. Bore size is the same but pistons have a different part number. Lee '94 LS, 3.0 V6, Auto, completely stock Re: 4d55 to 4d56 conversion? [Re: Lee N] #939438 04/13/09 07:51 PM Joined: Apr 2009 Posts: 6 Las vegas NV USA M mightydiesel80 OP Need a Spot How can I find the deck height for my engine, would a machine shop have that info? I have the repair manual for my 83 truck but it does not give me any specs for the deck, same on the 4d56. Let me know if you have better luck. Thanks for looking into it. Re: 4d55 to 4d56 conversion? [Re: mightydiesel80] #939439 04/15/09 06:08 AM Joined: Feb 2001 Posts: 913 Ogden, UT L Lee N Rock Warrior The block height is in the service specifications in the 4D56 manual. It's listed as 318.45-318.55 mm. I would think the height should be listed in a 4D55 service manual. Lee '94 LS, 3.0 V6, Auto, completely stock Moderated by  4x4Wire, Macka, Mudraider, off-roader, PHIL_, rxinhed  Hop To Mitsubishi Forums ------  Mitsubishi 4x4 and SUV Tech  Mitsubishi Diesels  Mitsubishi ArchiveToyota Forums ------  Early Toyota Trucks  Toyota 4Runner, FJ Cruiser &...  T100 & Tundra Forum  Tacoma Forum  Toyota Tech ArchiveJeep Forums ------  Jeep Talk  Jeep TechIsuzu Forums ------  Isuzu 4x4 & SUV Talk  Isuzu 4x4 & SUV Tech  Isuzu DieselsKia Forums ------  Kia Talk  Kia Sportage & Sorento TechOff Topic Chat ------  4x4 Gallery  Off-Topic Chat  Recreational Access & Land ...  Politics4xForums ------  Outdoor Gear  General 4x4 Discussion  Tools and Fabrication  General Communications  Amateur Radio  GPS and MapsParts Bin ------  Private Party - Garage Sale  Private Party - Items wanted  Vendors, Hot Deals, Group Buys4x4Wire Back Yard ------  Suzuki Forum  AZ Crawler Crew  Cal-Nev Crew  General Ford 4x4 & SUV Forum  General Dodge 4x4 & SUV Forum  General Chevy 4x4 & SUV ForumFeedback & Testing ------  Problems, Questions, Suggestions4x4Wire Staff ------  Forum Moderators  Problem Threads Print Thread Switch to Threaded Mode 5 Excellent 4 Good 3 Average 2 Bad 1 Terrible View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts

Default Style 4x4-lt-blue 4x4-new Forum Rules · Mark All Read Contact Us · 4x4Wire TrailTalk

OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting.
Copyright (c) 1999-2019 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.