The procedure for tightening TTY head bolts on GM 3.8L engines? - Engine Builder Magazine

The procedure for tightening TTY head bolts on GM 3.8L engines?

What is the procedure for tightening TTY head bolts on GM 3.8L engines?

The AERA Technical Committee offers the following information regarding cylinder head installation for 1995-2002 GM 3.8L VIN K and 1 engines. AERA TB 1952 should be discarded. According to AERA, other published service information has been incomplete and this is the most up to date information.

It is important to remember that the cylinder head bolts used for these engines should be replaced any time the heads are re-installed. Failure to replace the bolts during head installation may reduce clamping force and head gasket service life.

To install new head bolts on these engines, use a torque angle tool and:

    1. Thoroughly clean the threads in the block using a 7/16-14 tap.
    1. Install the head gasket with the arrow pointing to the front of the engine.
  1. Install the new cylinder head bolts dry.

Notice: This bolt is designed to permanently stretch when tightened. The correct part number fastener must be used to replace this type of fastener. If the correct bolt is not used, the parts will not be tightened correctly and the engine may be damaged.

Step 1: Tighten all bolts in sequence (see Figure 1) to 35-37 ft.lbs. (49-50 Nm).

Step 2: Rotate each bolt 130

You May Also Like

It’s Racing Season!

Well folks, racing is officially back! And that means engine builders, tuners, transmission builders, chassis builders, and racers have all been hard at work these past few months getting things ready for the track. . Every year it seems the off season will take forever on paper, but in reality, we’re back racing again in

Well folks, racing is officially back! And that means engine builders, tuners, transmission builders, chassis builders, and racers have all been hard at work these past few months getting things ready for the track. .

Every year it seems the off season will take forever on paper, but in reality, we’re back racing again in the blink of an eye. From the time the industry gears up for PRI in Indy to the time some of the first races of the year take place, that time goes by incredibly fast. And, it seems these past few years have carried much more excitement for racing across the board, which is always a good thing!

Don’t Put the Cart Before the Horse

Happy New Year everyone! I trust you all enjoyed the holiday season and are hitting the gas full throttle now that we’re in a new year and January is already flying by. Personally, I’m not generally big on making resolutions – at least not ones that require tons of effort or ones I know I

Changing the Narrative Surrounding the Automotive Industry

Every now and then, one of my local radio stations in the Cleveland area invites people to call in who recently got ghosted after a first date. For those who need the definition of ghosting, it’s when someone cuts off all communication without explanation. The radio station tricks the ghostee into telling their side of

Brand Loyalty – is it a Thing of the Past?

Well folks, it’s late September and summer has officially come to a close. If you’re like me, you’ll miss those warm weather days and longer hours of daylight, but it’s been a great few months of race events, car shows, seeing customers, visiting shops, and of course, creating tons of content. In fact, one of

Engine Builder Attends SBI’s 40th Anniversary Gala

If there’s anything that these past couple years has demonstrated, it’s that nothing is for certain in life or in business. In these days of such ever-changing environments, economies, consumer habits and the like, it’s more than impressive when a company reaches a major milestone. In July, the team at S.B. International, located in Nashville,

SBI Gala

Other Posts

Ed Iskenderian of Isky Racing Cams Celebrates 100

July 10, 2021 marked the 100th birthday of Isky Racing Cams founder Ed Iskenderian. The man is an icon in the industry.

Start with Engine Basics

This column is for the young folks out there who believe they have passion for automotive performance. You see the people in this industry and you really want to get involved. I get a lot of calls and emails from these younger folks who want to maybe intern or come to the shop to learn.

Science vs. Religion

Something I sometimes take for granted in this industry is the amount of knowledge at our disposal. It comes from all walks of life, different ages, genders, regions, as well as from different areas of manufacturing, development, engine building, racing, you name it. We have some very smart, talented people helping spread information throughout our

Where Have All the Engine Parts Gone?

Does this sound familiar? “We are experiencing issues within the supply chain that has created manufacturing delays, temporary stock-outs, longer lead times and increased cost. You may experience delays in shipment and product shortages. We are committed to working through these challenges and thank you for your patience and support.” Related Articles – Crap Happens