90 F350 and 84 F250 460 question - Pirate4x4.Com : 4x4 and Off-Road Forum

jimhat · 04-16-2009, 08:49 AM

ok forgive im a Ford newb, been workin on chebbys for 15 years.

so i have a 90 f350 with a FI 460 that is shot.

found an 84 F250 with a carb 460 in it that is almost brand new motor.

what all would i have to change to put the 84 carb 460 in my 90 and be able to put my FI on it?

Thanks

i already know i need to change all the accessories over to the 84 460 and the manifold but im not sure about if the manifold and old head will match up or what not.

fordnut · 04-16-2009, 09:05 AM

the heads are different too the fi intake wont fit carb heads iirc

jimhat · 04-16-2009, 09:51 AM

k ill have to see what shape the heads on my 90 are in.

will all the accesories and sensors from 90 motor go on the 84 motor or will have have to tab some holes in the 84 block?

82F100SWB · 04-16-2009, 09:58 AM

The block is the same, the carbed engine will work quite effectively as a short block for you. I'm doing the opposite for my truck... You will lose a bit of compresion, as the carbed motor does have a bigger piston dish, but, I doubt the computer will care.

jimhat · 04-16-2009, 10:27 AM

also what axles what the 84 f250 have under it?

04-16-2009, 08:49 AM	#1 (permalink)
jimhat . Join Date: Jun 2005 Member # 48475 Location: Colorado Springs Posts: 305	90 F350 and 84 F250 460 question ok forgive im a Ford newb, been workin on chebbys for 15 years. so i have a 90 f350 with a FI 460 that is shot. found an 84 F250 with a carb 460 in it that is almost brand new motor. what all would i have to change to put the 84 carb 460 in my 90 and be able to put my FI on it? Thanks i already know i need to change all the accessories over to the 84 460 and the manifold but im not sure about if the manifold and old head will match up or what not.

04-16-2009, 09:58 AM	#4 (permalink)
82F100SWB Fawkin Fordhead Join Date: Nov 2002 Member # 15263 Location: Winterpeg, Canada Posts: 2,048	The block is the same, the carbed engine will work quite effectively as a short block for you. I'm doing the opposite for my truck... You will lose a bit of compresion, as the carbed motor does have a bigger piston dish, but, I doubt the computer will care. __________________ 96 F350 XL CC PSD/5 speed 4x4... New Tow pig in the making 96 F250 XLT Ex Cab PSD/5 speed 4x4... DD/Tow Pig 92 W250 LE, CTD/5 speed 4x4, tow pig/DD/snow pushin pig 86 F250... 460/T19/1345/D60/welded 10.25, 44 Boggers, reg cab, some junk... Build

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04-16-2009, 09:05 AM	#2 (permalink)
fordnut Registered User Join Date: Jul 2005 Member # 50971 Location: nj Posts: 993	the heads are different too the fi intake wont fit carb heads iirc

04-16-2009, 09:51 AM	#3 (permalink)
jimhat . Join Date: Jun 2005 Member # 48475 Location: Colorado Springs Posts: 305	k ill have to see what shape the heads on my 90 are in. will all the accesories and sensors from 90 motor go on the 84 motor or will have have to tab some holes in the 84 block?

04-16-2009, 10:27 AM	#5 (permalink)
jimhat . Join Date: Jun 2005 Member # 48475 Location: Colorado Springs Posts: 305	also what axles what the 84 f250 have under it?