Engine Swap

mortition · 05-03-2007, 10:55 AM

I have a 94 chev pickup with a 4.3 can i put a 5.0 in it? would i c
have to change anything? and will it match up with the trans?

03chevy · 05-03-2007, 11:00 AM

yeah you would have to change motor mounts or make them yourself and the motor 4.3l is the same as a 350 just 2 cyl. droped off. but the 5.0 will not match up with that chevy trans. hope you can get the trans with the motor for it to work in there

mrjohnwayne · 05-03-2007, 12:18 PM

incorrect. the tranny will match the 5.0. He's right on the motor mounts. i don't believe they will match up. electronics wise you'll need a new computer.

75K30 · 05-03-2007, 01:31 PM

why stick a 305 in it? The biggest baddest 305HO made a whopping 190 horsepower, and the torque figures were nothing to write home about. Heak that 4.3 is probably producing right around the same figures.
If you are gonna go through the hassle of the upgrade, why not install at least a 350, or 383. These mills are getting pretty cheap now, and would be the exact same amount of work to install. This is true "free horsepower".

mortition · 05-03-2007, 01:32 PM

Thats it Just the computer? Which i already have please let me know if thats it. Thanks so much!

mortition · 05-03-2007, 01:36 PM

Quote:

Originally Posted by 75K30

why stick a 305 in it? The biggest baddest 305HO made a whopping 190 horsepower, and the torque figures were nothing to write home about. Heak that 4.3 is probably producing right around the same figures.
If you are gonna go through the hassle of the upgrade, why not install at least a 350, or 383. These mills are getting pretty cheap now, and would be the exact same amount of work to install. This is true "free horsepower".

thanks for the info i think i will go with the 350. my friends say the same.

75K30 · 05-03-2007, 01:54 PM

You will need the computer, and harness for the V8.
Bigger radiaor to cool larger engine
shorter shroud for radiator, 6 popper shroud is too short.
Motor mounts
fan should interchange
Depending on how you plan on running the fuel management system, you may need all of the stuff for the new fuel system.
Other than time, it is not so tough. Might ask yourself if it is worth it though. Would you be ahead of the game if you just bought one that was already a V8, and installed a fresh crate motor. Heak if you found a good one, you may not even have to do anything.

436'd skylark · 05-03-2007, 01:58 PM

The wee-oh-five is a waste of time. The trucks are a dime a dozen, you might as well sell yours and buy a nicely equipped one. It would be easier in the long run.

05-03-2007, 10:55 AM	#1
mortition Junior Member Join Date: May 2007 Posts: 3	Engine Swap I have a 94 chev pickup with a 4.3 can i put a 5.0 in it? would i c have to change anything? and will it match up with the trans?

05-03-2007, 11:00 AM	#2
03chevy Senior Member Join Date: Dec 2006 Location: jax,fl Posts: 1,186	yeah you would have to change motor mounts or make them yourself and the motor 4.3l is the same as a 350 just 2 cyl. droped off. but the 5.0 will not match up with that chevy trans. hope you can get the trans with the motor for it to work in there __________________ A dirty mind is a terrible thing to waste!

05-03-2007, 12:18 PM	#3
mrjohnwayne Senior Moderator Join Date: Apr 2005 Location: Texas Posts: 3,722	incorrect. the tranny will match the 5.0. He's right on the motor mounts. i don't believe they will match up. electronics wise you'll need a new computer. __________________ John Wayne 2000 F-350 7.3L Powerstroke 4x4

05-03-2007, 01:58 PM	#8
436'd skylark Senior Member Join Date: Mar 2007 Location: Buffalo Ny Posts: 661	The wee-oh-five is a waste of time. The trucks are a dime a dozen, you might as well sell yours and buy a nicely equipped one. It would be easier in the long run. __________________ Joe 89 K2500 Chevy, Wee-Oh-five 285K miles, completly rebuilt needs a motor, bad 1962 IHC Scout All Wheel Drive (Scout speak for locking axles) 152 ci, dana everything else

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05-03-2007, 01:31 PM	#4
75K30 Senior Member Join Date: Jul 2006 Posts: 2,992	why stick a 305 in it? The biggest baddest 305HO made a whopping 190 horsepower, and the torque figures were nothing to write home about. Heak that 4.3 is probably producing right around the same figures. If you are gonna go through the hassle of the upgrade, why not install at least a 350, or 383. These mills are getting pretty cheap now, and would be the exact same amount of work to install. This is true "free horsepower".

05-03-2007, 01:32 PM	#5
mortition Junior Member Join Date: May 2007 Posts: 3	Thats it Just the computer? Which i already have please let me know if thats it. Thanks so much!

05-03-2007, 01:54 PM	#7
75K30 Senior Member Join Date: Jul 2006 Posts: 2,992	You will need the computer, and harness for the V8. Bigger radiaor to cool larger engine shorter shroud for radiator, 6 popper shroud is too short. Motor mounts fan should interchange Depending on how you plan on running the fuel management system, you may need all of the stuff for the new fuel system. Other than time, it is not so tough. Might ask yourself if it is worth it though. Would you be ahead of the game if you just bought one that was already a V8, and installed a fresh crate motor. Heak if you found a good one, you may not even have to do anything.

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