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Joined: Apr 2021
Posts: 20
Grease Monkey
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Grease Monkey
Joined: Apr 2021
Posts: 20 |
What is the proper plug gap for new plugs in a 79 350?
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Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
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Joined: Dec 2007
Posts: 4,024 Likes: 99
ChatMaster - 4,000
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ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,024 Likes: 99 |
Unfortunately the answer is not as simple as we might like. Can you provide details about the vehicle as well as if this is the original or a later model replacement engine? Is it a carburetor or fuel injected engine. Does it have conventional points and coil ignition or an HEI?
That will help us.
Rusty
VCCA #44680
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
>045" for original engines in a passenger car.
Gene Schneider
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Joined: Dec 2019
Posts: 1,139 Likes: 75
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Dec 2019
Posts: 1,139 Likes: 75 |
I agree with Gene
If I remember right, when HEI came out, GM recommended .060".
But from 1976 on they changed that to .045".
Ole S Olson
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
Gene Schneider
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Joined: Apr 2021
Posts: 20
Grease Monkey
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Grease Monkey
Joined: Apr 2021
Posts: 20 |
It is in a K20 pickup that I bought brand new back in 79. Has original engine and and all equipment is original to the vehicle. Just runs a little rough and has a miss on the right bank.
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
I would also suspect the plug wires.
Gene Schneider
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