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390 parts on a 360


can you put 390 parts on a 360? I have a '68 F100 that has a 360 and I heard that a 360 is a underbored 390. Is this true and can I put 390 parts on it???



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About 20 Years back We had some 22' Ford straight Truck and a Few Yard Horse's and City Tractors that had 360's and 391 FE / FT Engines in them . I have to say they were good Engines much better then that Baby BB Chevy 366 was .

Back then when new the 391's had Holley 4bbls and the 360's had Holley 2bbls . And if I remember correctly on the front of the block they all had 352 casted . My Boss back then had a 1958 Ford with a 60's 406 and he said his 406 had that 352 casting as well .

Well in no time as we Junked trucks and bought a Few Re-Man Engines . I switched intakes Dist water Pumps Exhaust Manifolds from both Engines and every thing was a Bolt right on deal . One Time I changed one cylinder head on a 391 they need that truck Like yesterday . We had a Remain FE Cylinder head in our stock room for years . It had the same casting # on it so I switched it / out the door in around 4 1/2 Hours . Them intakes was very Heavy .

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Ford Tech

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360 has a 4.05" cyl bore and 3.50" crank stroke.
390 has a 4.05" cyl bore and 3.78" crank stroke.

So yes the blocks are identical aside from the casting year, foundry and std vs HD castings.



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If these blocks and cylinder bore are the same . Were is the stroke added ? pistons and rods or crankshaft or both . so in reality I can make this a 390 . If I stay with it as a 360 . Is there a formula performance build that is known to work heads cam compression intake ?

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No reply that bad ha ? Im I better off with a 351 windsor swap

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thanks dennyw for now i am looking for a cheap used aluminum manifold 600 holly and better ign system . are them big cap gm dists made for 360 fords ?





-- Edited by gyro9898 on Saturday 14th of May 2011 09:41:21 PM



-- Edited by gyro9898 on Saturday 14th of May 2011 09:42:23 PM

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if i keep my stock point dist what brand points set are good to buy ? and how about the coil should i buy one of the high voltage coils ?

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I like the motorcraft points and condenser .

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Not sure if you can buy them Motorcraft Ign parts at the auto store . May have to be ordered ?

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how much can i bore out this block ? thinking about a major overhauling . what pistons to use and who makes am .

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Look for a 390 Crankshaft I would think you could go .060" We had a Few Trucks that had 391 FT's that were punched more then .030" over and ran well . You would Need 390 Pistons for the right pin height to do the Build . I just am not sure how hard it will be to Find a Good used 390 Crank ?

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i have a antifreeze leak in the corner of the drivers cylhead . do you think if i just clean the block @ heads and change the gaskets that will fix it ?

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I have found a later model Duraspark electronic ignition distributor off of a 70's 360 along with the ignition module work really well and the module is easy to hook up. All you have to do is hook up the red wire to the ignition and install the distributor. I've run this setup on numorous Ford motors and have never had a problem.



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