Spark plug ?'s

Reply Subscribe

Thread Tools

Search this Thread

Dec 15, 2005 | 01:01 PM

Icicle

Thread Starter

Postmaster

Joined: Mar 2003

Posts: 4,038

Likes: 2

From: Spokane WA

Spark plug ?'s

Correct reach and plug diameter for a stock 302 head? (1982)

Dec 16, 2005 | 08:49 AM

TigerDan

Hotshot

Joined: May 2004

Posts: 12,170

Likes: 5

From: The hills of No. Calif.

In 1975 Ford went from 18mm to 14mm taper-fit plugs...so '82 heads would be the latter. Autolite number would be 25. 14mm, .460" reach, 5/8" hex, tapered seat.

Dec 16, 2005 | 05:15 PM

Icicle

Thread Starter

Postmaster

Joined: Mar 2003

Posts: 4,038

Likes: 2

From: Spokane WA

Thanks Dan, I ended up figuring it out with googles help, I knew the autolite number, but couldnt find any technical data on their website.

At any rate, thanks!

Dec 17, 2005 | 02:42 PM

Customcab

Postmaster

Joined: Dec 2003

Posts: 4,423

Likes: 8

From: Clarksville,Tn

Well tell me this I got an 76 302 Truck motor and I'm running Autolite 45's at 0.44 plug gap; they screw into the heads real easy and only have to use a socket about an 1/4 turn to be snug. I'm I running the wrong plugs? Engine data is 302cid; bore 60 over 10:5 to 1 with a mid cam.

Mitch