Q&A

Q&A

Mailbag: Can I Use an EFI Kit to Control Ignition Timing?

Q: Can I use a fuel injection system to control my ignition timing? … A: Yes. Most fuel injection kits will work with your existing ignition system. All they really […]

Mailbag: How Does an Ignition Coil Work?
Q&A

Mailbag: How Does an Ignition Coil Work?

Q: How does an ignition coil work? … A: Ignition coils are electrical transformers. They convert low voltage to high voltage through a process called induction. There are various designs, […]

Q&A

Ask Away! with Jeff Smith: Troubleshooting Stripped Cylinder Head Bolts

I’ve got an old, 327 c.i.d. small-block Chevy that I started to replace the heads with a better set. My problem is I’ve stripped the threads on two head bolts […]

Q&A

Ask Away! with Jeff Smith: Bearing Clearance, Cam & Oil Pump Advice for SBC Build

I have a 350 c.i.d. small-block Chevy that I’m rebuilding. It has Wiseco forged pistons with a 1/16-inch ring package and 10:1 compression, good I-beam rods, and a good steel […]

Q&A

Ask Away! with Jeff Smith: Figuring Piston-to-Deck with Protruding Pistons

I’m building a Chevy 350 engine for my son’s circle track race car. I started out with a 0.040-over block that I think has been severely decked but I’m not […]

Hooker headers
Q&A

Mailbag: Will These Exhaust Headers Fit my Vehicle?

Q: How can I figure out if these headers will fit my vehicle? … A: Exhaust headers are designed to fit a specific combination of engine and vehicle. Just because a […]

Mailbag: Explaining 4-1 vs. Tri-Y Exhaust Header Collectors
Q&A

Mailbag: Explaining 4-1 vs. Tri-Y Exhaust Header Collectors

Q: Can you explain the difference between “4-1” and “Tri-Y” collectors? … A: The collector is where the primary tubes merge together. 4-1 and Tri-Y are the two main types […]

Q&A

The Basics of Setting and Adjusting Valve Lash

The designers of late model engines like the GM LS, Ford Modular engine, and the Chrysler Gen III Hemi have in many ways made it easy for performance enthusiasts. Not […]

Q&A

Mailbag: What is Connecting Rod Ratio and Why Does it Matter?

Q: What is rod ratio? … A: Rod ratio is the relationship between the Connecting Rod Length and the Stroke Length of the crankshaft. How is it calculated? Use the following formula to calculate rod […]

Q&A

Mailbag: Ford 302 Firing Problems After Cam Swap

Q: I have a 1994 Ford F-150 with a 5.0L engine and factory mass airflow sensor. I just had the heads redone and installed a Trick Flow Stage 1 camshaft. […]