Addding accessory power ignition switch to 1968 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72MARIO · 08-22-2016, 06:54 AM

I just finished up LS swapping my 1968 Suburban. This suburban does not have an acc postion on the ignition switch. Is it possible to just change the switch to a 1972 switch with acc position ?

chewychevy67 · 08-22-2016, 09:44 AM

I tried that I'm my 67 and the switch still worked in start and run but had no accessory. I thought 68 had accessory? Maby you have a 67 switch in a 68. If your 68 is wired for accessory like it should be you may be able to change it and have it work.

Deer_hunter_088 · 08-22-2016, 09:47 AM

my k10 truck has a 75 steering colum, has steering lock, acc, tilt, etc so i say its an upgrade.

**LockDoc** · 08-22-2016, 10:00 AM

Quote:

Originally Posted by 72MARIO

I just finished up LS swapping my 1968 Suburban. This suburban does not have an acc postion on the ignition switch. Is it possible to just change the switch to a 1972 switch with acc position ?

The wire loom is different. You could install the later switch and add the wires you need to the connector if you had to.

LockDoc

davepl · 08-22-2016, 12:02 PM

It might be easier to replace the points with a Pertronix and then not worry. I think the only reason we had ACC separate from IGN was largely not to burn your points while sitting with the key on but engine off.

72MARIO · 08-22-2016, 05:57 PM

Quote:

Originally Posted by davepl

It might be easier to replace the points with a Pertronix and then not worry. I think the only reason we had ACC separate from IGN was largely not to burn your points while sitting with the key on but engine off.

Thats funny..my distributor sits in the drivers front corner behind the rad support now.

I dont like the PCM having power when its not running

08-22-2016, 06:54 AM	#1
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,052	Addding accessory power ignition switch to 1968 I just finished up LS swapping my 1968 Suburban. This suburban does not have an acc postion on the ignition switch. Is it possible to just change the switch to a 1972 switch with acc position ? __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

08-22-2016, 09:44 AM	#2
chewychevy67 Registered User Join Date: Jan 2010 Location: Here Posts: 5,456	Re: Addding accessory power ignition switch to 1968 I tried that I'm my 67 and the switch still worked in start and run but had no accessory. I thought 68 had accessory? Maby you have a 67 switch in a 68. If your 68 is wired for accessory like it should be you may be able to change it and have it work.

08-22-2016, 09:47 AM	#3
Deer_hunter_088 Registered User Join Date: Aug 2016 Location: Mount Carmel Illinois Posts: 1,321	Re: Addding accessory power ignition switch to 1968 my k10 truck has a 75 steering colum, has steering lock, acc, tilt, etc so i say its an upgrade.

08-22-2016, 12:02 PM	#5
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,332	Re: Addding accessory power ignition switch to 1968 It might be easier to replace the points with a Pertronix and then not worry. I think the only reason we had ACC separate from IGN was largely not to burn your points while sitting with the key on but engine off. __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible



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