What is an acceptable distance between the spark plug boot and the header? I have 882 heads, hooker 2460s, AC R45TS plugs and 90* boots and there is maybe a half inch of clearance on some of the plugs.

 

I have about an inch clearance with mine, but they're angle plug heads, never had issues with them. I don't know about half an inch though. Do you have the ability to manipulate them any? ziptie them a certain way or something to get you more clearance?

 

These arent angled plugs, these are straight, so the end of the boot is right at the header.

 

I know, I was saying that mine were. I would be worried with them being so close, if your headers are ceramic coated or wrapped you may be alright.

 

Mine aren't too close, but I bought these for added comfort. Plus they look killer with the MSD wires and Jet-Hot coating of the headers.

DEI Protect-A-Boots

*Note* I had to remove the metal ring inside the boot covers to get them over the thick boot of the plug wires as I have them snug on the 90* boot about 1/2" from the head. They won't come away from their positions unless you pull on them nicely. Safe and secure from the heat.

 

Some wires with ceramic ends might help as well.

http://www.ebay.com/itm/Accel-9033C-...e98e36&vxp=mtr

 

Funny. A part from Accel, sold by Jegs...on eBay. Those look nice though.

 

accel makes header plugs that are about 3/4" shorter than standard. Those and angled boots, I have no issues with my 2460s.

 

When I worked in a Chevy dealership years ago, and GM still made motorhome chassis, we were a servicing dealer. These (wires with ceramic boots) were popular with coach owners, as burning wires was a common problem (along with overheating/warping exhaust manifolds and headers).

In applications where you need them, they are very effective.

 

Happen to have a part number for those plugs? I do plan on getting some sort of a boot cover as well.

 

I have a few near 1/2" from downpipe that is wrapped and boot protected. No issues. Thats a very hot environment too being a turbo car

 

Fortunately, I still have the box. Only number on it is 0576S-4. Easy enough to find at A/Z or advance, right behind the counter in their "performance" section.

http://www.ebay.com/itm/Accel-Spark-Plugs-0576S-4-Shorty-Resistor-Race-Plug-4-Pkg-/400281063172?pt=Motors_Car_Truck_Parts_Accessories&hash=item5d329c4f04&vxp=mtr

 

I have AFR 195 heads with straight plugs.
Ed Quay 1 7/8 long tube header.
Regular length spark plugs.
I use 90 degree boots and have zero problems.
No wrap or heat shielding either.

 

i have new aluminum heads with angled plugs, went through my local napa store, first they gave me a set of wires for an older style distributor cap, and the second (which i was on the phone with MSD saying its a direct fit for my 87 t/a) were all straight boots, although 8.5mm wires, i had to bend each boot with a pair of channel locks and some of the boots are still barely touching the headers. should be an interesting smelling first startup lol. if these boots go, i'll have to find another set of wires i guess lol, but for now i'm not gonna let my $80 bucks go to waste lol

 

I'll throw them on and see how they hold up with some boot protectors. Thanks for the info guys.