6.0L Chevy engine mounting

Bob Shaw · 12-27-2009, 07:45 PM

I want to put a 6.0L 2004 Chevy truck engine in an older Chevy. Are the engine mount locations and bellhousing pattern the same as a 350 Chevy? Will a 350 flywheel fit?
Thanks in advance for any advice.

Mark Markow · 12-27-2009, 07:51 PM

no ,close and no
adapters are available for the moter mounts and flywheel ,and i think just 1 bolt hole is off on the bellhousing. i'm sure someone else here will know for sure on the trans.

Chipper Chapman · 01-01-2010, 06:09 PM

The bellhousing is missing the highest bolt hole on the right side, the one your dipstick tube usually anchors to, not a big deal just that you have 5 bolts instead of 6.

The mounts are different but all you need to do is make a peice of plate that adapts your gen 1 mounts, There is 1 bolt hole that is in the correct location for the lower bolt of the gen1 mount, I think its the front lower hole.

Must use LS style flexplate, AND if you're lucky you're 6.0 is from an earlier truck, 99-02 i believe, because they have an adapter bolted on with the flexplate that accepts a normal gen1 torque converter pilot. If you don't have one of these you need a LS style converter.
(gm did this because of the overlap of 2 gens of trucks and engines which both used the same 4L80E trans/converter)

You may need to elongate the converter bolts holes in the flexplate for use with normal converters, some had a metric bolt pattern that is close to the older large pattern but not close enough.

Hope this helps

BillK · 01-01-2010, 07:56 PM

Bob,

There is a ton of ifo on the LS1 Tech website in the conversion forum http://www.ls1tech.com/forums/index.php

I bought the Edlebrock adapter mounts for my 71 Chevelle and so far the engine is a drop in deal. I also got the GMPP oil pan kit, also seems to fit great although it only holds 4 qts. It is aluminum though and should be pretty easy to modify for more capacity. My older Lakewood Bellhousing bolts up fine along with my Doug Nash 5speed but I only have a bare block and heads so I cant try a flywheel / clutch combination yet. Lakewood does show a different bellhousing for the LS engines but I am not sure what the differences are. I had the one off my small block so I am using it to get the trans, shifter etc in place for now.

Hope this helps,

Bob Shaw · 01-02-2010, 04:00 PM

Thanks a lot for your help, guys!
Bob

Dennis P Chapman · 01-02-2010, 04:39 PM

Bob
New killer comb LOL

Bob Shaw · 01-02-2010, 07:25 PM

Dennis,
If I can convince NHRA that this engine came in an S10.

Dennis P Chapman · 01-03-2010, 08:19 PM

Bob
All you need is a letter from GM lol.

12-27-2009, 07:45 PM	#1
Bob Shaw Member Join Date: Jan 2002 Location: Sedalia, Mo Posts: 427 Likes: 280 Liked 290 Times in 58 Posts	6.0L Chevy engine mounting I want to put a 6.0L 2004 Chevy truck engine in an older Chevy. Are the engine mount locations and bellhousing pattern the same as a 350 Chevy? Will a 350 flywheel fit? Thanks in advance for any advice. __________________ Bob Shaw V/SA 515

12-27-2009, 07:51 PM	#2
Mark Markow Senior Member Join Date: Apr 2008 Location: east hartford ct. Posts: 539 Likes: 1 Liked 9 Times in 3 Posts	Re: 6.0L Chevy engine mounting no ,close and no adapters are available for the moter mounts and flywheel ,and i think just 1 bolt hole is off on the bellhousing. i'm sure someone else here will know for sure on the trans. __________________ Mark Markow 171 ss/tb

01-01-2010, 06:09 PM	#3
Chipper Chapman Member Join Date: Jan 2004 Location: Belmont N.S. Canada Posts: 453 Likes: 214 Liked 142 Times in 64 Posts	Re: 6.0L Chevy engine mounting The bellhousing is missing the highest bolt hole on the right side, the one your dipstick tube usually anchors to, not a big deal just that you have 5 bolts instead of 6. The mounts are different but all you need to do is make a peice of plate that adapts your gen 1 mounts, There is 1 bolt hole that is in the correct location for the lower bolt of the gen1 mount, I think its the front lower hole. Must use LS style flexplate, AND if you're lucky you're 6.0 is from an earlier truck, 99-02 i believe, because they have an adapter bolted on with the flexplate that accepts a normal gen1 torque converter pilot. If you don't have one of these you need a LS style converter. (gm did this because of the overlap of 2 gens of trucks and engines which both used the same 4L80E trans/converter) You may need to elongate the converter bolts holes in the flexplate for use with normal converters, some had a metric bolt pattern that is close to the older large pattern but not close enough. Hope this helps

01-01-2010, 07:56 PM	#4
BillK Member Join Date: Nov 2005 Location: Waldorf Md Posts: 222 Likes: 10 Liked 26 Times in 15 Posts	Re: 6.0L Chevy engine mounting Bob, There is a ton of ifo on the LS1 Tech website in the conversion forum http://www.ls1tech.com/forums/index.php I bought the Edlebrock adapter mounts for my 71 Chevelle and so far the engine is a drop in deal. I also got the GMPP oil pan kit, also seems to fit great although it only holds 4 qts. It is aluminum though and should be pretty easy to modify for more capacity. My older Lakewood Bellhousing bolts up fine along with my Doug Nash 5speed but I only have a bare block and heads so I cant try a flywheel / clutch combination yet. Lakewood does show a different bellhousing for the LS engines but I am not sure what the differences are. I had the one off my small block so I am using it to get the trans, shifter etc in place for now. Hope this helps, __________________ Bill Koustenis

01-02-2010, 04:00 PM	#5
Bob Shaw Member Join Date: Jan 2002 Location: Sedalia, Mo Posts: 427 Likes: 280 Liked 290 Times in 58 Posts	Re: 6.0L Chevy engine mounting Thanks a lot for your help, guys! Bob __________________ Bob Shaw V/SA 515

01-02-2010, 04:39 PM	#6
Dennis P Chapman VIP Member Join Date: Jun 2007 Location: Toms River NJ Posts: 1,594 Likes: 401 Liked 52 Times in 24 Posts	Re: 6.0L Chevy engine mounting Bob New killer comb LOL __________________ Dennis P Chapman 1904 STK NHRA National Record Holder Car Owner.

01-02-2010, 07:25 PM	#7
Bob Shaw Member Join Date: Jan 2002 Location: Sedalia, Mo Posts: 427 Likes: 280 Liked 290 Times in 58 Posts	Re: 6.0L Chevy engine mounting Dennis, If I can convince NHRA that this engine came in an S10. __________________ Bob Shaw V/SA 515

01-03-2010, 08:19 PM	#8
Dennis P Chapman VIP Member Join Date: Jun 2007 Location: Toms River NJ Posts: 1,594 Likes: 401 Liked 52 Times in 24 Posts	Re: 6.0L Chevy engine mounting Bob All you need is a letter from GM lol. __________________ Dennis P Chapman 1904 STK NHRA National Record Holder Car Owner.