Articles written by: Jeff Smith

Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Smith began writing for Car Craft magazine in 1979 and became editor in 1984. In 1987, he assumed the role of editor for Hot Rod magazine before returning to his first love of writing technical stories. Since 2003, Jeff has held various positions at Car Craft (including editor), has written books on small block Chevy performance, and even cultivated an impressive collection of 1965 and 1966 Chevelles. Now he serves as a regular contributor to OnAllCylinders.

Car Culture & Entertainment

10 Parts, 10 Years: A Decade of Product Evolution in the Automotive Performance Aftermarket

In honor of the 10th anniversary of OnAllCylinders, we’re asking some of our regular contributors to write a few stories on the automotive industry. Next up, Jeff Smith gives us his […]

Engine & Exhaust / Q&A / Tech

Ask Away! with Jeff Smith: Lobe Separation Angle (LSA) Specs—What Does a Plus Sign (+) Mean?

I’ve been looking at cam specs for the Summit Racing Pro LS Truck camshafts and I have a question. I’ve noticed that many of the specs now list the lobe […]

Driveline / Engine & Exhaust / Q&A

Ask Away! with Jeff Smith: Advice on Swapping a 4.8L LR4 LS Engine & 4L60E Trans into a 1969 Firebird

I have a 1969 Firebird that I’m swapping in a 2002 LR4 4.8L LS engine from a GMC Sierra pickup. I have the mechanical swap parts for mounting the engine […]

Engine & Exhaust / Q&A

Ask Away! with Jeff Smith: Should I Hone the Cylinder Walls on a 5.3L LS with 200K Miles Before My Rebuild?

I have a used 5.3L LS truck engine that I’d like to swap into an earlier Chevy pickup. The engine was running when it was pulled out of a wrecked […]

Ignition & Electrical / Q&A

Ask Away! with Jeff Smith: Why is There Wet Engine Oil on My Spark Plug Threads?

I have a 355ci small block Chevy that was rebuilt about a year ago and we included a set of Edelbrock aluminum heads, a Comp flat tappet cam, and an […]

Engine & Exhaust / Q&A

Ask Away! with Jeff Smith: Some Good, Mild Performance Upgrades to a Direct-Injection Chevy Gen. V 5.3L LT Engine

I am rebuilding a 2014 L83 5.3L engine for my Silverado pickup and I’m considering making some changes to improve the performance slightly. I have looked into adding larger fuel […]

Engine & Exhaust / Q&A

Ask Away! with Jeff Smith: Should I Put a Small Block or Big Block Engine in My 1974 Chevy Truck?

I am trying to decide on an engine for my 1974 Chevy project truck. The truck has a 350ci small block and a TH350 but I am thinking of going […]

Ignition & Electrical / Q&A

Ask Away! with Jeff Smith: How to Connect a GM CS-130D Style Alternator in Place of an Original CS130

I have been looking for how to wire a CS-130D alternator in place of my CS-130. I came across your article on how to hook up a new alternator in […]

Induction / Q&A

Ask Away! with Jeff Smith: Should I Drill Air Bypass Holes In All 4 Carb Throttle Blades to Improve Idle?

Recently you wrote an article that mentioned drilling holes in all four throttle blades on the Holley carb to change the blade position compared to the transfer slot. I have […]

Driveline / Engine & Exhaust / Tech / Tech Articles

Big Inches & Big Power: A Simulated Look at Maximizing Acceleration with Chevy Performance’s ZZ632 Big Block

The big news in Bowtie land these days is Chevrolet Performance’s monster ZZ632 tall-deck big-block crate engine that can make 1,004 hp on 93 octane gasoline. Everybody is buzzed about […]