Author Topic: Flywheel date for a 67 l78  (Read 864 times)

67ssrsl78conv

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Flywheel date for a 67 l78
« on: February 19, 2012, 01:43:37 AM »
How far was a flywheel date off the engine build date?  The motor is a 67 mid may l78.   Thanks. Jeff

JohnZ

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Re: Flywheel date for a 67 l78
« Reply #1 on: February 19, 2012, 03:29:51 PM »
How far was a flywheel date off the engine build date?  The motor is a 67 mid may l78.   Thanks. Jeff

The casting date on the flywheel should be at least a few days prior to the stamped assembly date on the block pad.
'69 Z/28
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67ssrsl78conv

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Re: Flywheel date for a 67 l78
« Reply #2 on: February 19, 2012, 04:00:32 PM »
John, would 25 days be too far off?

JohnZ

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Re: Flywheel date for a 67 l78
« Reply #3 on: February 20, 2012, 03:21:42 PM »
John, would 25 days be too far off?

Nope, that would work fine.
'69 Z/28
Fathom Green
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67ssrsl78conv

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Re: Flywheel date for a 67 l78
« Reply #4 on: February 20, 2012, 03:34:56 PM »
Thanks. John.    I have had my original l78 on an engine stand for 33 years and was looking for a date correct flywheel for many years.  Do you know where I might find a correct  vacuum fitting for the manifold and did the 67 l78 use the 11/32 hose right to the fitting or was there a vacuum tube in between?  Thanks. Jeff

JohnZ

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Re: Flywheel date for a 67 l78
« Reply #5 on: February 21, 2012, 03:28:10 PM »
Thanks. John.    I have had my original l78 on an engine stand for 33 years and was looking for a date correct flywheel for many years.  Do you know where I might find a correct  vacuum fitting for the manifold and did the 67 l78 use the 11/32 hose right to the fitting or was there a vacuum tube in between?  Thanks. Jeff

The vacuum fittings are very common, and all of the vendors have them; the fitting and hose arrangement for power brakes is shown in the J50 section of the Assembly Manual.
'69 Z/28
Fathom Green
CRG