6.0L to th400
02-08-2008 | 11:28 PM
#1
Thread Starter
Registered User
Joined: Feb 2008
Posts: 1
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6.0L to th400 hey, im looking for some info. im putting a 6 liter into my 65 skylark. i have a th400 laying around. i want to know what the conversion is to connect the two. i really appreciate the help. also, is there a good, reasonable, stand alone system to run the engine with out the factory computer? also, any intake other than the L-76 to run? ( i know you have to run the L-92 heads).
Last edited by dsmith6920; 02-09-2008 at 07:44 AM.
02-08-2008 | 11:40 PM
#2
what year 6.0L?
Is the TH400 the BOP (Buick-Olds-Pontiac) bolt pattern or Chevy? you'll need the chevy bellhousing to work behind the 6.0L.
You should have a flat flex plate, which will let the torque converter pilot rest inside end of the crank or adaptor when the bolt pads touch the flex plate. This is important for proper alignment of everything.
You may have to drill the flex plate for the smaller pattern on the TH400 converter. If you're TH400 has a heavy duty converter with 6 pads, it may line up with out drilling.
Other then that, TH400 bolts up.
Might try a search..i'm sure there is lots of info about TH400 on Gen III's on this forum.
Is the TH400 the BOP (Buick-Olds-Pontiac) bolt pattern or Chevy? you'll need the chevy bellhousing to work behind the 6.0L.
You should have a flat flex plate, which will let the torque converter pilot rest inside end of the crank or adaptor when the bolt pads touch the flex plate. This is important for proper alignment of everything.
You may have to drill the flex plate for the smaller pattern on the TH400 converter. If you're TH400 has a heavy duty converter with 6 pads, it may line up with out drilling.
Other then that, TH400 bolts up.
Might try a search..i'm sure there is lots of info about TH400 on Gen III's on this forum.
03-04-2008 | 05:40 PM
#5
Joined: Sep 2004
Posts: 3,121
Likes: 8
From: Downers Grove, IL
If it had a 4l60e behind that LQ4 then you will need a spacer. If it had a 4l80e which it should have, then you will not need a spacer. If the flexplate is flat then it already has the spacer, if its dished it needs the spacer.
03-04-2008 | 05:43 PM
#6
Launching!
Joined: Apr 2007
Posts: 276
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From: Utah
Why do you want to run the engine without the computer? It seams that this would be the easiest way, you of course would need to program out some things but I don't know why you would want to do something different.
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03-04-2008 | 05:47 PM
#8
Staging Lane
Joined: Jan 2008
Posts: 69
Likes: 0
From: Quebec in Canada
G-BODY, i measured the distance between the block ant the end of the flexplate and if i measure from where it's punched 6.0L to the end of the flexplate, it give me 1 and 1/8 inches is it right ??? thanks for the answer
