6.0L with m21
If you've got the skill and equipment then sure, maybe it's worth it. I'd agree in almost anything else but reworking that oil pan wasn't worth it. Don't forget you have to baffle the new sump when you're done. My pickup was way at the back of the pan for the first year and pressure would drop if I got on the brakes hard. I reworked the pan baffles and pickup tube a few weeks ago and it's better now, but pressure still drops on a 100mph-0 run, even without extreme braking.
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Teching In
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From: Central Michigan
alright, I'll look into another pan then. It's just another couple hundred I wasn't planning on. Are the 5.3 pans different at all? I saw a page once that gave all the details to the different pans, but I forget where it was.
Truck pans are all the same. It's up to you whether it's worth it or not to modify it. I did another LS1 conversion this winter on my wife's 91 Camaro and I used an F-body pan. I got it from the classifieds here for $75 with pickup. It was slightly damaged but not enough that I actually had to fix it. I just used it as-is.
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From: Central Michigan
Could someone do me a favor that has as LSx flywheel sitting out? Please measure from the mating surface that bolts to the crank out to the clutch disc surface with a straight edge?
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Teching In
Joined: May 2007
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From: Maryland
In my 1961 Corvette I used a special GM flywheel and a pilot bearing made for the LS1 to Muncie trans. The bell housing I used is an old Lakewood blow proof model that has the bracket for the ball pivot. The bolt lined up, for most of the bell housing to engine, but for 2 of them. You can spend the extra money for the right bell housing, but I don’t think it’s needed. I got it on Ebay for $40 bucks. I also used a long adjustable pivot bolt for the clutch and had to weld and additional nut inside the bell housing for more adjustment. The clutch and pressure plate I used was a Center force set-up.
GM Early style 4 speed flywheel- PN 12561680
GM Special Pilot Bearing PN 12557583
Dave
GM Early style 4 speed flywheel- PN 12561680
GM Special Pilot Bearing PN 12557583
Dave
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Teching In
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From: Central Michigan
just some follow-up to this whole thing so far..
The crank to bellhousing is the same on the traditional big/small block compared to the 2000 6.0L ~ 11/16".
Now, the bolt pattern on the crank flange at the flywheel is completely different than my big block. However, it is very similar to newer one-piece rear main small blocks but all the holes don't line up- i compared an 80's flexplate to my 6.0.
Now, my big block flywheel is just shy of an inch- 31/32. From crank flange surface to clutch surface. So, as long as my BB clutch will bolt up to an ls1 flywheel or I can find one that has the correct depth and spline, I'll be all set. Anyone know if my old clutch will bolt up to the ls1 flywheel?
The crank to bellhousing is the same on the traditional big/small block compared to the 2000 6.0L ~ 11/16".
Now, the bolt pattern on the crank flange at the flywheel is completely different than my big block. However, it is very similar to newer one-piece rear main small blocks but all the holes don't line up- i compared an 80's flexplate to my 6.0.
Now, my big block flywheel is just shy of an inch- 31/32. From crank flange surface to clutch surface. So, as long as my BB clutch will bolt up to an ls1 flywheel or I can find one that has the correct depth and spline, I'll be all set. Anyone know if my old clutch will bolt up to the ls1 flywheel?
just some follow-up to this whole thing so far..
The crank to bellhousing is the same on the traditional big/small block compared to the 2000 6.0L ~ 11/16".
Now, the bolt pattern on the crank flange at the flywheel is completely different than my big block. However, it is very similar to newer one-piece rear main small blocks but all the holes don't line up- i compared an 80's flexplate to my 6.0.
Now, my big block flywheel is just shy of an inch- 31/32. From crank flange surface to clutch surface. So, as long as my BB clutch will bolt up to an ls1 flywheel or I can find one that has the correct depth and spline, I'll be all set. Anyone know if my old clutch will bolt up to the ls1 flywheel?
The crank to bellhousing is the same on the traditional big/small block compared to the 2000 6.0L ~ 11/16".
Now, the bolt pattern on the crank flange at the flywheel is completely different than my big block. However, it is very similar to newer one-piece rear main small blocks but all the holes don't line up- i compared an 80's flexplate to my 6.0.
Now, my big block flywheel is just shy of an inch- 31/32. From crank flange surface to clutch surface. So, as long as my BB clutch will bolt up to an ls1 flywheel or I can find one that has the correct depth and spline, I'll be all set. Anyone know if my old clutch will bolt up to the ls1 flywheel?
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Teching In
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From: Central Michigan
I know that the older SB and BB are the same- as I've been running a borg/beck three finger that I had built that my dad used to run on his SB. So, I might be all set to bolt up.
I looked into this before I bought a Richmond 6 speed.
Get an LS1 flywheel, 621 BBC bell housing, and LS7 pilot bearing.
Now look up aftermarket clutch manufacturers, some list the same PN for 26 spline BBC disk and LS1 disk. That means both work with the same LS1 or BBC pressure plate. They also list the BBC 10 spline disk that work with the BBC pressure plate. So that 10 spline disk should work fine with the LS1 flywheel/pressure plate
I found all this in the Summit catalog.
Get an LS1 flywheel, 621 BBC bell housing, and LS7 pilot bearing.
Now look up aftermarket clutch manufacturers, some list the same PN for 26 spline BBC disk and LS1 disk. That means both work with the same LS1 or BBC pressure plate. They also list the BBC 10 spline disk that work with the BBC pressure plate. So that 10 spline disk should work fine with the LS1 flywheel/pressure plate
I found all this in the Summit catalog.
Last edited by garys 68; Jan 26, 2010 at 12:43 PM.
