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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

engine swap possible??

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Old Jun 9, 2007 | 08:47 PM
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*70F250*'s Avatar
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From: SO CAL
Question engine swap possible??

hello, is it possible to swap a 390 and c6 into a 1970 f-250 sport custom??
It currently has a 289 with c6 or c4...its not the original engine. anyway if it IS possible, where can I get mounts? Are there going to be any major adjustments needed? of any sort?

thanks a bunch

-brian
 
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Old Jun 9, 2007 | 10:18 PM
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Not sure about the transmission crossmember, but I believe the FE block uses the straight mount towers like the I6. The small block uses the ones that slant back toward the firewall.
 
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Old Jun 10, 2007 | 02:38 AM
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Well someone correct me if iam wrong but shouldnt it bolt in cause werent they offered with 390s but i supposed they all changed to fit the 289!
 
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Old Jun 10, 2007 | 02:44 AM
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yes it should bolt right in. you will need the 300I6/FE towers and the trans cross member can stay in the same spot. A 289 in a F-250 seems pointless. How many valve cover bolts does that 289 have?
 
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Old Jun 10, 2007 | 10:24 AM
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*70F250*'s Avatar
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From: SO CAL
Thanks a lot for the input, sounds great! and there are 6 valve cover bolts. you know I really am not sure which engine I have, its either a 302, or a 289....the whole story on why i think its a 289, and not a 302, and all that is in the small block section, where they talk about these 289's and 302's. Its titled "identifying engine 302 or 289"

anyway, that doesn't really matter, iam still planning on putting the 390 in that i have sitting in the garage. thanks again for everything!

-brian
 
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