Spark Plug Wire Length 327

[Jimmy G.]

Help!! I have lost the sheet that comes with repo plug wires indicating what the correct length by number. Anybody got one to share?? Thanks

[William C.]

Re: Spark Plug Wire Length 327

I don't have all my notes Jim, but for '63 at least, cyls 1-3-2 were all the same length, the next longest is 4, 5-6 are the same length, 7 and eight are different and shoult be easy to pick out by the fit.

[John H.]

Re: Spark Plug Wire Length 327

Mike -

My notes show the following:

#1 - 49"
#2 - 49"
#3 - 49"
#4 - 45"
#5 - 32"
#6 - 32"
#7 - 28"
#8 - 26"

[Wayne M.]

Re: Spark Plug Wire Length 327

Jimmy --- you don't mention what year, and I assume you are referring to "with U69". Noland's Vol 2, page 166 (1963 section) calls (for L84, w/90 degree boots) cyls # 1, 2 and 3 @ 45.7 inches (centerline-of-terminal to centerline-of-terminal. Cyl # 4 unique @ 42.3". Cyls # 5 & 6: 28.8 inches; Cyls # 7 & 8: 24.2 inches long.

Chev P & A 30 catalogs in mid-'60s for 327's are not much help, other that to show '63-64 w/F.I.; cyls # 5, 6, 7 & 8, all 28" with 90 degree boots. All other catalog dimensions refer to big blocks.

[Christopher R.]

Re: Spark Plug Wire Length 327

Just did this. And I kept the instruction sheet. And I was able to find it.

1. 49.0"
2. 49.0"
3. 49.0"
4. 45.0"
5. 32.0"
6. 32.0"
7. 28.0"
8. 26.0"

The number above is the cylinder number. The length is that of the wire, terminal end to terminal end. Note the terminal end of the plug end is the centerline of the boot. The sheet says all lengths are +/- 1/2"

This is for 1958 to 1974 small block Corvettes (and Chevies).

[Jimmy G.]

Re: Spark Plug Wire Length 327

Thanks to one and all

[Brad K.]

Re: Spark Plug Wire Length 327

Jimmy,
I'll add a little bit to the confusion. For my '58-'60 283. (which ought to be the same) here's what the "Lectric Limited" folks say:

1-48.5"
2-47.5"
3-48.5"
4-45.0"
5-30.5"
6-32.0"
7-28.0"
8-26.5'

When I actually measured them, some deviated from these measurements by as much as 2 1/2"

[mike cobine]

Re: Spark Plug Wire Length 327

You should try generic wires. The lengths are all over the place. I think some I have were designed for a straight eight by the length.