Thread: 69 427 Big Block
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09-11-2003 09:06 PM #1
69 427 Big Block
Do all big blocks have a threaded hole in rear of the block next to the crank on the left side,3/8 or 1/2 plug.Looks like threaded hole is part of the engines lubrication system.Bill Menne
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05-03-2004 04:17 PM #2
Reply to your post of Sept. '03.
You may find your answer to your L88 question at link below. There is a tech forum there.
http://corvetteactioncenter.com/specs/l88/
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05-04-2004 04:36 AM #3
Re: 69 427 Big Block
Originally posted by cdueced
Do all big blocks have a threaded hole in rear of the block next to the crank on the left side,3/8 or 1/2 plug.Looks like threaded hole is part of the engines lubrication system.
Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance