gap for a 350 motor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69-Chevy-350 · 01-10-2003, 09:52 PM

Hey All,
I was going through my haynes manuel and I see there are two different gaps for the 350 motor. My truck is supposed to be a 69 V8 but I don't see that size motor for that year. Anyhow there are two different gaps for the spark plug. They are .035 and .045. The block is painted orange if that helps. the motor is a recent one replaced two years ago. Which would all you mech heads reccomend. I just finished the cap, rotor, air filter and I have the bed primed which leads me to my next question, What kind of paint would you recomend for the bed. I need something tough and that won't chip. I will have pics up tommorrow hopefully.

mikep · 01-10-2003, 09:55 PM

.035 with points and .045 with electronic or HEI

nu2-72 · 01-10-2003, 09:57 PM

.035 was a gap for non-Hei and you should go to .045 if you are running the Hei setup.

69-Chevy-350 · 01-10-2003, 10:01 PM

i am going to ask a very dumb question. How do i know wich I have? I am thinking points but now sure. The motor set up is very very basic...

nu2-72 · 01-11-2003, 10:41 AM

Points will have a small metal lifting window in the cap to access the points and a wire leading to the coil. Coil wire will run from the cap to the coil. The coil for points will be round and have two small wire studs, (one each side) and the coil wire in the top center.
Hei caps are much larger, often with the coil in the cap and the wires are usually larger as well. Remove the cap and no visible points inside.
This help?

69-Chevy-350 · 01-11-2003, 11:27 AM

yes. This means I have points. Thanks for helping.

Steve Chandler

01-10-2003, 09:52 PM	#1
69-Chevy-350 Registered User Join Date: Jan 2003 Posts: 27	gap for a 350 motor Hey All, I was going through my haynes manuel and I see there are two different gaps for the 350 motor. My truck is supposed to be a 69 V8 but I don't see that size motor for that year. Anyhow there are two different gaps for the spark plug. They are .035 and .045. The block is painted orange if that helps. the motor is a recent one replaced two years ago. Which would all you mech heads reccomend. I just finished the cap, rotor, air filter and I have the bed primed which leads me to my next question, What kind of paint would you recomend for the bed. I need something tough and that won't chip. I will have pics up tommorrow hopefully.

01-10-2003, 09:55 PM	#2
mikep Used to have a truck Join Date: May 2002 Location: port orchard WA Posts: 1,552	.035 with points and .045 with electronic or HEI __________________ No truck :-(

01-10-2003, 09:57 PM	#3
nu2-72 Senior Member Join Date: Apr 2001 Location: Amazonia, Mo. USA Posts: 2,821	.035 was a gap for non-Hei and you should go to .045 if you are running the Hei setup. __________________ 72 3/4 4x4 350 4spd 72 3/4 4x4 350 auto 2004 Duramax Silverado 4x4 2006 Duramax Crew cab 4x4 2010 Harley Ultra Limited 2011 Harley Street Glide

01-11-2003, 10:41 AM	#5
nu2-72 Senior Member Join Date: Apr 2001 Location: Amazonia, Mo. USA Posts: 2,821	Points will have a small metal lifting window in the cap to access the points and a wire leading to the coil. Coil wire will run from the cap to the coil. The coil for points will be round and have two small wire studs, (one each side) and the coil wire in the top center. Hei caps are much larger, often with the coil in the cap and the wires are usually larger as well. Remove the cap and no visible points inside. This help? __________________ 72 3/4 4x4 350 4spd 72 3/4 4x4 350 auto 2004 Duramax Silverado 4x4 2006 Duramax Crew cab 4x4 2010 Harley Ultra Limited 2011 Harley Street Glide

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01-10-2003, 10:01 PM	#4
69-Chevy-350 Registered User Join Date: Jan 2003 Posts: 27	i am going to ask a very dumb question. How do i know wich I have? I am thinking points but now sure. The motor set up is very very basic...

01-11-2003, 11:27 AM	#6
69-Chevy-350 Registered User Join Date: Jan 2003 Posts: 27	yes. This means I have points. Thanks for helping. Steve Chandler



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