68 timing tab?

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Jul 21, 2005 | 09:01 PM

AZSpeedBuggy

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7th Gear

Joined: Feb 2005

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From: Tucson Arizona

68 timing tab?

don't understand my timing tab on my 68 327 vette engine. the letters stamped look like "A", "O", and "R". other chevys have numbers in degree and "Before" and "After". Can anyone explain where 4 degrees BTDC would be?

Jul 21, 2005 | 09:06 PM

big_G

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From: Austin Texas

A=Advanced, 0=0degrees, R=Retarded....In 2 degree incriments, I believe.
Where the white paint mark is 4 degrees BEFORE top-dead-center

Jul 22, 2005 | 07:46 AM

Easy Mike

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From: Southbound

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Quote:

Originally Posted by big_G

A=Advanced, 0=0degrees, R=Retarded....In 2 degree incriments, I believe.
Where the white paint mark is 4 degrees BEFORE top-dead-center

Jul 22, 2005 | 05:54 PM

AZSpeedBuggy

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7th Gear

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From: Tucson Arizona

sounds good to me, thanks a bunch!
AZSpeedBuggy

Jul 22, 2005 | 10:47 PM

Solid LT1

Le Mans Master

Joined: Dec 2003

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From: Fremont CA

Just make sure your harmonic dampner is for the 68 timing mark or you are around 18degrees off on you timing marks (they moved in 69-later motors.)

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