55chevy

iTrader: (6)

I am installing a ls1 and t56 in my '55 with a new LS6 clutch, pressure plate, and new slave. I took my flywheel to the shop and they turned it .025. I've read the exploding clutch thread but I'm not too worried about the flywheel since this is going to be mainly a street car with only a few strip passes on test and tune nights.

Here are my questions:

1) Will I need to add a shim or spacer to make up for the .025? If so, where can I buy one.

2) This is probably a dumb question, but do I need to re-attach the bar code lable that shop scrapped off? The mechanic scrapped it off and marked the location and said there may be a sensor and it may be required.

3) Should I reuse my flywheel to crank bolts or buy new ones?

4) Lastly, am I crazy to run the turned flywheel?

Thanks,
steve

55chevy

iTrader: (6)

Anyone?
thanks

jyeager

I don't think you are crazy to run it. Go ahead. If you add a .025 shim you will be pretty safe, but you might be OK without it too. Where to get a shim? Check with one of the clutch vendors like spec.

You should re-use your bolts.

What bar code are you talking about?

55chevy

iTrader: (6)

It is a vinyl green and white bar code lable with 348 in red on it.

Thanks for the other info.
Steve

jyeager

This is on your flywheel? I can say with a high degree of confidence that there are no onboard sensors that read that.

calhoon

iTrader: (6)

Suit yourself but I would not reuse the flywheel bolts.

jyeager

Why more cautious than GM? They don't recommend new bolts in the service procedures.

calhoon

iTrader: (6)

These bolts require a careful torqueing process and are "stretched" when installed. Reusing them compromises the intsall/ torqueing. I would replace them on a build up.

55chevy

iTrader: (6)

I'll probably pick up new bolts anyway since I have to get some for the pressure plate.

Thanks for all the help.

CW00BlackTA

iTrader: (31)

All bolts are stretched when installed--but it's elastic and not permanent. There should be no problem with a single re-use of these. Re-use may become a problem when fasteners are damaged during removal, if they have specialty coatings on them or lubricants are applied. Any of these things may alter the normal relationship between the applied torque and fastener clamp-up load.