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Can you tell me if there is an updated exhaust manifold torque specification for GEN III engines? The AERA Technical Com-mittee offers the following information regarding exhaust manifold bolt and torque update on 1998-2003 GEN III 4.8L, 5.3L, 5.7L and 6.0L engines. A new exhaust manifold bolt and torque specification was introduced to the GEN

Core Corner: Finding Your Direction With The Northstar

I’ll be honest, it’s had me baffled. Even I’ve struggled to understand why I would put much research effort into the casting proliferation of this engine. My perception was, "Who in his right mind would spend the money to put a reman engine into a car that is so old?" Yet, jump up onto

Old Iron, Good Carbs And Bad Carbs

Recently I’ve been inside a few carbs. I found myself first forgetting that things have changed and then developing a real nostalgia for the old days when this was a lot less difficult. If you still have any small thought that slapping a quick kit into an old carb will be the end of it,

Pumped Up For Peformance Oiling Systems

Most OE engines use a wet sump system, which can be modified for performance applications to improve oil control and increase horsepower. A dry sump system, on the other hand, has been specifically designed for performance applications and is mainly used at the higher levels of racing where oil control is critical for producing maximum

Rebuilding The Chrysler 2.4L

Chrysler replaced its old SOHC four cylinders with an all-new family of SOHC and DOHC engines in 1995. There were 2.0L SOHC and DOHC versions, along with a 2.4L DOHC that was installed in the FWD cars and minivans. Add seven different head castings that came with and without EGR and A.I.R. and throw in

Tech Notes

Engine Builders: Everyone who works with cars or trucks is familiar with the terms Torque and Horsepower. But do you understand the difference between the two and can you explain it to your customer? It’s important to have a sound understanding of both and the ability to comprehend what defines each measurement of output. By

Shop Line

What is the proper main bearing installation procedure for Chrysler Hemi engines? The AERA Technical Committee offers the following information regarding crankshaft main bearing installation procedures for 2003-’06 DaimlerChrysler 5.7L and 6.1L Hemi engines. This procedure is for crankshafts previously removed from the cylinder block. It is important to first clean all of the oil

Fast Lane: New Markets Could Give Your Business Hope For Survival

[email protected] Although some automotive machine shop owners believe that – with engine life measured in six figures – the good days are over, the shops that continuously seek out new markets that parallel their talents and abilities will continue to survive. Those shops willing to invest the time and effort to find those markets will

Blasting Equipment & Media

In today’s society, finding “the next big thing” seems to be all the rage. We no longer want to do things the same way and seem to keep asking “what’s the latest and greatest?” High technology and computerization have made many tedious everyday tasks a breeze, from communication to entertaining to operating your business. But

Balancing Equipment: Weighing the Options

Engine balancing is an important part of the process of building a performance engine today. In order to achieve the maximum performance and long component life, all rotating and reciprocal parts of an engine must be precision balanced. To properly balance an engine requires specialized equipment to measure the amount of unbalance and to locate


The California Air Resources Board (CARB) did not vote late last year on a proposal that would have extended emissions warranties to 15 years/150,000 miles on defective emissions-related components. The determination came during a CARB hearing on changes to the Emissions Warranty Information Reporting (EWIR) requirement that would have required car companies that experience more

Shop Line

Q. While working on a 2004 Mitsubishi 2.4L G69M engine, I got confused about the correct valve lash specs. Can you explain?  A. The AERA Technical Committee says Mitsubishi’s published information seems to have listed incomplete specifications as two different camshaft profiles were use. The following information regarding the correct valve lash specification and camshaft

Tech Notes

Engine Builders: The AERA Technical Committee offers the following information regarding an engine oil leak for 2005-2007 Toyota 3.5L 2GRFE engines. Some 2GRFE engines may display evidence of a small oil leak, located on the rear side of Bank 1.  The source has been identified as unused side and end bolt holes in the right

AETC Review

The 17th Annual Advanced Engine Technology Conference (AETC) was held for the second year in a row at the Orlando Convention Center, Dec. 11-13, just days before the opening of PRI. While the weather wasn’t frightful, there wasn’t quite as much Florida sunshine as the previous year either, but the talk around each morning’s breakfast

Core Corner, What’s Your Isuzu IQ?

[email protected] Here we are starting the new year with an optimism that hasn’t been seen for probably the last five years. From all indications, 2007 appears to be the first year in a long time that will be better and show growth for the engine reman/ builder industry. The decline of the market seems to

Understanding High Performance Valvetrain Technology

Parts are getting lighter, stronger and capable of producing more horsepower than ever before. One of the driving forces behind these advances has been the proliferation of aftermarket cylinder heads that require unique valvetrain components. In addition, new computer-aided design, modeling and manufacturing techniques are making it easier and faster for valvetrain component suppliers to

Over the Peaks and Into the Valleys – Hones, Diamonds and Bores

“Your mission, should you choose to accept it, is to find the recipe for perfect bores…your instructions are to produce bores that are perfectly straight and round. This message will self-destruct after five minutes. Good luck.” Although it’s not “Mission: Impossible,” good bore geometry is critical in order to achieve proper ring sealing. Bore distortion

Final Wrap: A New Year And Some Brand Spankin’ New Technology

Happy New Year! As you undoubtedly realize, this is the time of year when magazine editors typically write their columns on one of three subjects: How bad the last year was and assurances that THIS year will be better. How great last year was but expressing concern that the bottom will drop out soon. Or,

Tech Notes

Engine Builders: What is viscosity breakdown? All of us in this business understand an SAE 5W-20 oil is thinner in viscosity than an SAE 10W-30 and that the “W” stands for winter, but that’s probably about where it stops even though there is more to the story. Motor oils thin in viscosity as they warm

PERA’S Core Corner: Ford 4.6L Front Cover Inquiries Top Year-End Wish List

Well, here it is the end of the year and, as I write this, the Midwest has just experienced its first major snowfall. Many of us are still digging out, with dire consequences for some, and school closings for thousands of children who are jumping up and down with joy. Remember when things were that