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11-05-2018, 11:07 PM
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#8 |
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Senior Member
 
Join Date: Jul 2000
Location: North Texas
Posts: 4,038
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Re: Spark Plug Lengths - shorty's
And here's a picture comparing two non-tapered seat plugs for older heads and aftermarket aluminum heads. Not just shorter, but smaller body diameter and wrench size, too. Great for keeping plug boots away from header tubes. That's an NGK on the left, but Bosch and others also make plugs in that same size (called "ISO").
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Mike 1969 Custom/10 LWB -- owned for 37 years. 350/TH350, 3.08 posi, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. Hedman stainless headers. Old Air installation in progress. 1982 Custom Deluxe 10 SWB -- converted from 250-six to roller cam 350 w/ Vortec heads -- sold 1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it! 1969 C10 (not the current one) which I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 26 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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