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1984 442 307 ho swap

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Old Jun 10, 2009 | 01:02 AM
  #1  
1986monte's Avatar
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From: exton pa
Default 1984 442 307 ho swap

i have a 1986 monte and i wanna put a 307 ho olds motor in the car what do i need?
 
Old Jun 10, 2009 | 09:53 AM
  #2  
drewskie043's Avatar
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From: St. Paul, MN
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i'm not positive on this but from what i can remember from my demo derby days i think you will need different motor mounts. i would think the accessory drive is pretty similar but if i was you i would try to poke your head under the hood of an olds so you can compare. overall, it should be a pretty straight forward swap.

oh ps- you might need an adapter plate to mount up to the 200r4.
 
Old Jun 10, 2009 | 11:49 PM
  #3  
TheMonteMan's Avatar
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Posts: 1,910
From: nj
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your going to need an adapter for the trans. and i would take everything with the motor. just in case power steering pulley might be different. not to bother but why do you want to run that motor? the 307ho had a "hotcam" but didnt make any horsepower or torque. it was a 170hp/250tq motor when it was fresh. i had one in my gutlass and it sucked only good thing is that they were indestructible. also if you are pulling it from a 442 take the rear while your there its got the same 8.5 10 bolt that was in the grand national but with 3.73s in it.
 
Old Jun 12, 2009 | 10:44 AM
  #4  
vincenti's Avatar
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From: Pittsburgh
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is your 86 Monte a factory V-8 or V-6 car?
 
Old Jun 12, 2009 | 03:42 PM
  #5  
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everything has to be changed to put a olds motor in a car with a chev motor.
no acc.will fit as they are not the same the batt. is on the wrong side. the wiring harness will have to be changed up a little the starter and alt are on the opposite side as the chevy.
if you have the th200r4 trans you have a dual bolt paturn trans so your good there.
 
Old Jun 17, 2009 | 02:12 AM
  #6  
1986monte's Avatar
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sorry i havent been on but just got the net at my house so ill be on pretty much everyday now but anyway. i have the 307 ho motor and the 350turbo trans i had to change everything from the pass to the driverside and the wiring but now its just the motor mounts hahaha cant find them anywhere i know im getting alot of crap for doing this but i just wanted to see if i could do it or not and i was short on cash so
 
Old Jun 17, 2009 | 02:13 AM
  #7  
1986monte's Avatar
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i have pix of what i did but i dont know how to put them up on the site
 
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