badazz81z28

iTrader: (6)

Anyone running this combination? I'm thinking of running a LS7 pilot bearing as it appears I have room for more engagement using the traditional. What are you all using??

i r teh noobz

iTrader: (4)

I have a TKO600 with an old SBC bellhousing.I have an LS7 pilot.

The writeup I read years ago said the LS7 piece was required.

garys 68

iTrader: (1)

Not a TKO, but I'm running a T10 and Richmond on LS motors. As long as the bell is the same depth as a standard old school bell (ie. 621) and it's a GM input shaft on the TKO, the LS7 pilot bearing will work.
Part number in this thread.
https://ls1tech.com/forums/conversio...-ls-motor.html

badazz81z28

iTrader: (6)

That's what I have found. Unsure about the QuickTime in comparison to the 621. It appears the ls7 bearing is what I need but the measurements are close

badazz81z28

iTrader: (6)

From what I gather with my measurements. This is what it looks like installed and you can see the input shaft. The shaft clearly shows where the roller bearings ride and the where the seal is. Does that look like enough? Keep in mind I have the pilot bearing slightly extending (I didn't make it flush with the crank).

garys 68

iTrader: (1)

First off, the bearing in the left photo looks like the smaller 98-02 f body that rides in the inner flange.
When I set mine up, the LS7 bearing was flush with the end of the crank. The input flange extended about flush with the inside of the bearing. The splines did not reach the rear of the bearing.
There was an aftermarket bearing with an extension closer to the splines, but I don't know that there's any advantage to that.

badazz81z28

iTrader: (6)

It is the smaller bearing. I'm investigating whether I need the LS7 bearing based on what I'm seeing.

badazz81z28

iTrader: (6)

With my ruler and a straight edge it appears the ls7 bearing would be very very close to bottoming out on the input shaft. I sure hope someone who runs this same combo can chime in...

garys 68

iTrader: (1)

Is your bellhousing a LS1 adapter that is shorter and allows for the use of the 98-02 f body pilot bearing? Or is it one for standard BBC/SBC?
With the 621 bell, the input shaft would barely reach the f body bearing.

badazz81z28

iTrader: (6)

It's the QuickTime that is specifically designed for LS1 to TKO

RM-6036 I believe. The bearing would definitely not have enough engagement if I didn't leave it extended 1/8" or so.

garys 68

iTrader: (1)

Call Quicktime, ask them.
I used 621s on both mine, price was only about $200.

fastcrash30

Tko600, QuickTime bell, factory ls1 pilot bearing here, with standard cable and fork.

badazz81z28

iTrader: (6)

Crash, by chance did you check the input engagement in the bearing?

fastcrash30

I did when I had my engine on a stand earlier this year, the difference with my setup is that I have the RM-6037 for a ford to LS bell, so the input shaft on mine is a ford length shaft. I just had the shaft machined down 2mm to fit the pilot bearing to gm size, if my memory doesn't fail me I remember it seating fine with a slight gap between bearing and splines. I just put white grease on it when I did my test fitments to see how far in it went.

93hatch

iTrader: (9)

Im putting a ford g force t5 behind mine and bought this, Ill tell you if it fits this weekend

mcleod told me this is the one to use

http://www.summitracing.com/parts/mcl-8-1094-2

badazz81z28

iTrader: (6)

I got a hold of quick-time and they have no clue. They claim an OEM bearing should work, but it doesnt. If I had the bearing flush in the engine, it would be way off.

I needed an extended bearing to get more surface coverage on the input shaft, but does anyone feel the above pictures indicate a risky situation?

S10xGN

iTrader: (11)

Is your QT bell designed to be used with a block plate? That might space it back far enough to use the LS7 bearing... I have a Jerico behind an old-school BBC scattershield (in mock up stage) and the LS7 bearing fits perfectly.

badazz81z28

iTrader: (6)

I took some measurements and it appears the LS7 would be super close to bottoming out (no room for heat expansion). I found an extended pilot that .250 out of the hole, but that about puts me where my F-body bearing is now (.187).

I think ideal is .300" out of the hole. I think I'm just going to leave it as it is, unless someone else has something interesting to say about my pictures.

I do have a block plate.

garys 68

iTrader: (1)

Just curious, why did you go with the QT bellhousing? Seems to be a very expensive option.

badazz81z28

iTrader: (6)

I wanted the safety feature of a steel bell housing.