Q&A

Q&A / Tech

Ask Away with Jeff Smith: Choosing a Torque Converter for an LS-Swapped Chevy S-10 with a 4L60E

I was wondering if you could help me. I have a ‘99 Chevy S10 with an LS1 engine that has a long crank and iron heads. We are trying to […]

Q&A / Tech

Ask Away with Jeff Smith: Choosing Cylinder Heads for Bottom-End Power on a Mopar 340

I have a ‘73 340 ‘Cuda. The motor is bored 0.030-over with headers, an Edelbrock dual plane intake and a matching cam, roller timing chain, and Holley double pumper carb. […]

Q&A / Tech

Ask Away with Jeff Smith: How to Fix a Rich Idle on a Big Block Chevy

I’ve got a Chevelle with a 468ci big-block with a pretty big cam, Edelbrock Performer RPM intake, a Holley 750cfm HP carburetor, and an HEI ignition. The engine idles way […]

Q&A / Tech

Ask Away with Jeff Smith: Lining Up Intake Manifold Bolt Holes on a 427 Chevy

The Holes Don’t Line Up! I’m assembling a 427ci big-block Chevy for a friend. It’s an original engine with block and heads that have been in storage for decades that […]

Q&A / Tech

Ask Away with Jeff Smith: Upgrades to GM LS 6.0L 4×4

I’ve followed your stories and career for years. I know the internet has changed most everything we do but I miss seeing Car Craft in print. One tech question I […]

Q&A

Ask Away with Jeff Smith: Running a Single or Dual Plane Intake Manifold

I keep seeing all kinds of information on the best intake manifold for a carburetor and all the opinions just make this even more difficult. I have a 5.0L small-block […]

Q&A / Tech

Ask Away with Jeff Smith: Dialing in a Cleveland

I’m trying to dial in my old Ford friend of 45 years, a 1972 Ford Mustang with a 351 Cleveland with 2-barrel heads. The engine has a Crane hydraulic roller […]

Q&A / Tech

Ask Away with Jeff Smith: Is 10:1 Compression Compatible with 91 Octane Fuel?

I want to build a 350 Chevy with iron heads and a 10.0:1 compression ratio. Will that work on 91 octane pump premium fuel? H.C. Seemingly simple questions like this […]

Dodge 360
Q&A

Mailbag: Does My High-Performance Engine Need a High-Volume Oil Pump?

Q: I’m rebuilding a Dodge 360 engine for street performance applications. How do I know if I need a high volume oil pump? A: A stock volume oil pump is […]

GM Differential Ring Pinion Size Measurements
Q&A / Tech

Mailbag: How to Identify GM Differential Carriers

Q: I have a 1970 El Camino with a 12-bolt differential and 4.11:1 ring and pinion. I’m not sure if it’s the original gear ratio, but I want to change […]