Firewall Distributor Clearance Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Eyegore · 03-26-2007, 09:29 PM

Were finalizing things on the truck and were noticing how close the distributor is to the firewall, about 3/8" around - how close should it be?
Here are a couple of pics, not to good but you'll get the idea.

pcmcobra · 03-26-2007, 09:37 PM

that's pretty close.
What motor you put in there?

*Zilverado* · 03-26-2007, 10:12 PM

It looks a tad close to me too. It's a little tough to see from the photo below, but I would say that mine is about 3.5" from the firewall to the centerline of the distributor.

Can you even get a screwdriver back there to remove the distributor cap hold-down screws?

BTW, mine is a stock 305 engine.

Eyegore · 03-26-2007, 11:35 PM

Sorry guys this is on the 78 k10 w/ 350, this one:

Billy81 · 03-27-2007, 12:01 AM

Did you lower the transfer case when you did the lift? If so thats why it is so close to the firewall. I just put a 4" lift on my 86 Blazer and i had to lower the transfer case to get better drive line angles. And my distributor sits pretty close to the firewall just like yours.

Eyegore · 03-27-2007, 12:32 AM

Billy I believed you nailed it. Are you having any trouble with a cracked cap from hitting the firewall?

Billy81 · 03-27-2007, 01:30 PM

No broken caps yet

I was talking to a guy at a local 4x4 shop and he told me that it should be fine running it like that. But he also said i would be better off if i put the transfer case back and get a new rear driveshaft made with a cv joint. I will admit at first i had no idea what he was talking about but i did know that i did not have $600 for a new driveshaft..lol

tiggerstoy · 03-27-2007, 01:36 PM

Quote:

Originally Posted by Billy81

Did you lower the transfer case when you did the lift? If so thats why it is so close to the firewall. I just put a 4" lift on my 86 Blazer and i had to lower the transfer case to get better drive line angles. And my distributor sits pretty close to the firewall just like yours.

03-26-2007, 09:29 PM	#1
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Firewall Distributor Clearance Question Were finalizing things on the truck and were noticing how close the distributor is to the firewall, about 3/8" around - how close should it be? Here are a couple of pics, not to good but you'll get the idea. Attached Images __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

03-26-2007, 09:37 PM	#2
pcmcobra Registered User Join Date: Aug 2006 Location: Florida Posts: 1,684	Re: Firewall Distributor Clearance Question that's pretty close. What motor you put in there? __________________ 1986 C10 SWB 6.0/6l90e Miami...Flee it like a native

03-26-2007, 10:12 PM	#3
Zilverado Account Suspended Join Date: Nov 2002 Location: Winnipeg, Manitoba, Canada Posts: 798	Re: Firewall Distributor Clearance Question It looks a tad close to me too. It's a little tough to see from the photo below, but I would say that mine is about 3.5" from the firewall to the centerline of the distributor. Can you even get a screwdriver back there to remove the distributor cap hold-down screws? BTW, mine is a stock 305 engine. Attached Images Last edited by Zilverado; 03-26-2007 at 10:13 PM.

03-26-2007, 11:35 PM	#4
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Re: Firewall Distributor Clearance Question Sorry guys this is on the 78 k10 w/ 350, this one: Attached Images __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

03-27-2007, 12:01 AM	#5
Billy81 Registered User Join Date: Jun 2004 Location: Medford,Oregon Posts: 390	Re: Firewall Distributor Clearance Question Did you lower the transfer case when you did the lift? If so thats why it is so close to the firewall. I just put a 4" lift on my 86 Blazer and i had to lower the transfer case to get better drive line angles. And my distributor sits pretty close to the firewall just like yours.

03-27-2007, 12:32 AM	#6
Eyegore What Hump? Join Date: Apr 2003 Location: New River AZ Posts: 2,009	Re: Firewall Distributor Clearance Question Billy I believed you nailed it. Are you having any trouble with a cracked cap from hitting the firewall? __________________ Lil red 86 c-10 99 Sub 78 Camper Special w/ 454

03-27-2007, 01:30 PM	#7
Billy81 Registered User Join Date: Jun 2004 Location: Medford,Oregon Posts: 390	Re: Firewall Distributor Clearance Question No broken caps yet I was talking to a guy at a local 4x4 shop and he told me that it should be fine running it like that. But he also said i would be better off if i put the transfer case back and get a new rear driveshaft made with a cv joint. I will admit at first i had no idea what he was talking about but i did know that i did not have $600 for a new driveshaft..lol Last edited by Billy81; 03-27-2007 at 08:56 PM. Reason: spelling



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