1974 400/C6 - Junk it or keep it?
Printed From: The Ford Torino Page
Category: Powertrain Specific Forum
Forum Name: 335 Series Engine Forum
Forum Description: 351C, 351M and 400 engines
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=9628
Printed Date: 26-March-2026 at 5:42PM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: 1974 400/C6 - Junk it or keep it?
Posted By: unlovedford
Subject: 1974 400/C6 - Junk it or keep it?
Date Posted: 15-August-2013 at 3:24PM
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I have a running 400 Modified and a C6 in a '74 Ranchero I just bought. Engine runs well, smells like OLD gas when I start it and puffs a small wisp of smoke (old gas?) when you first start it. Has been sitting 2 years. Truck shows 114K and verified by original owner. Is it worth going to the trouble of pulling it, or should I just leave it to add weight when I junk what is left? ------------- Joe 1972 Mom's Squire Wagon 1972 Torino Wagon 1976 Torino 1968 Cougar XR7-First batch 1972 Torino 460 1989 BroncoII/Jeeps/Titanimous Popeye and Brutus (Rams) |
Replies:
Posted By: legend onirot
Date Posted: 15-August-2013 at 5:35PM
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put "new" gas in it? ------------- --------------------- malcolm 1973 gran torino sport (formal)... "Stacy Lynn" 1972 gran torino (formal)... "Mackenzie" 1973 gran torino sport (sportroof)... "Leela" |
Posted By: Robbdtme
Date Posted: 15-August-2013 at 6:46PM
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Read up on 400's. Keep it. These are great motors that can easily and cheaply be built. 74 had larger chamber heads that later crappy 351m Heads can improve. The 400 always had low octane higher compression problems in the 70's. Again read up on 400's you will get excited and keep it. ------------- Johnny cash Special 74-75-76 freak. 77 XR7. 78 LTD II sport looks pretty but poop 302 in it. |
Posted By: Eliteman76
Date Posted: 24-April-2014 at 7:01AM
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Joe, I am looking for a C6 for a 400. If you elect to part, let me know. -------------  Andrew:GTS.ORG admin, '72 Q code 5 speed RestomodPondering: #99Problems |
Posted By: unlovedford
Date Posted: 24-April-2014 at 7:07AM
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Andy, That all left here months ago. However, the '67 LTD has a non-original rebuilt 400/C6 in it that I am contemplating removing for an EFI drivetrain, since C wants to keep/drive this. Will let you know if I elect to remove it. ------------- Joe 1972 Mom's Squire Wagon 1972 Torino Wagon 1976 Torino 1968 Cougar XR7-First batch 1972 Torino 460 1989 BroncoII/Jeeps/Titanimous Popeye and Brutus (Rams) |
Posted By: Rockatansky
Date Posted: 24-April-2014 at 8:14AM
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OK I know it's an old dead thread but just to point out for anybody that finds it in a search for something else... 1974 400 heads are better than 1975 351M heads because of the exhaust port... chambers are basically the same. in 1975 with the D5 casting, Ford added a water jacket around the exhaust valve for added cooling due to higher running temps of the new unleaded fuel the exhaust port bowl is 'filled' & that's not a good thing bottom left pic here http://raceabilene.com/kelly/hotrod/newmotor2.html" rel="nofollow - http://raceabilene.com/kelly/hotrod/newmotor2.html ------------- 72 GT Ute |
Posted By: unlovedford
Date Posted: 24-April-2014 at 9:19AM
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I have no idea what year the LTD's engine is. Just aware of it being rebuilt, pretty healthy, 4Bbl intake and Edelbrock carb and sounds like Christine. Moves the car pretty well and the transmission shifts well. ------------- Joe 1972 Mom's Squire Wagon 1972 Torino Wagon 1976 Torino 1968 Cougar XR7-First batch 1972 Torino 460 1989 BroncoII/Jeeps/Titanimous Popeye and Brutus (Rams) |
Posted By: kychevyguy
Date Posted: 10-August-2014 at 6:18AM
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What information does anyone have about the 1973 400 engine? The particular engine has had low oil pressure for the 15 years that the current owner has had it. Is this a notorious issue with the 400s? Is there something I should look for when purchasing?? ------------- JT, USAF Ret./Architect 1971 Ford F100 "Lizzy" 1971 Cougar XR7 "Kitty" 1984 Chevy Silverado "Sylvia" 2009 Smart Fortwo Cabrio "Lil Dude" 2015 Volvo XC60 R-Design "Sven" |
Posted By: Rockatansky
Date Posted: 10-August-2014 at 7:54AM
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yeah they're pretty famous for running almost forever with little or no oil pressure, as long as you don't kill them on purpose they keep chug'n. w/o going into the engine a HV oil pump can be a 'repair' method, or running slightly heavier oil or both even after rebuild with new bearings & fresh reground crank they still have pathetic oil pressure. Tim Meyer did a thread showing how he custom ground the crank to outside service tolerance & came up with typical factory oil clearances, otherwise with quality replacement bearings & reground crank within service spec's you'll end up with 'performance' oil clearances & possibly crappy oil pressure kinda funny how the boat anchor of the late 70's turned out to be the choice of Engine Masters Competition builders in the 2000's
------------- 72 GT Ute |