Gm 3400 rocker arm thread repair. These rocker arms are designed specifically for the 3. I have the pushrods in the correct order ready to go back in. Also, the pushrods are different lengths for the intake and exhaust. Swivel the loose rocker arms out of the way. When replacing the valve seals (mid 70s 350, 461 camel hump heads, roller tip rockers, unknown cam with lumpy idle) I noticed some studs with more thread showing above the nuts. Remove nut and add washers. Valve rocker arm ball studs that have damaged threads or are loose in cylinder heads should be replaced. Jan 7, 2025 · GM 3100 - 3400 Engine Issues GM 3100 – 3400 engine issues, are still happening and are being repeated. Jan 30, 2012 · SOURCE: 2004 pontiac grand am 3. Chevy Impala Camshaft Retaining Plate Bolts Torque Spec : 11 ft-lbs Chevy Impala Rocker Arms Torque Spec : 14 ft-lbs + 30° Chevy Impala Valve Lifter Guide Bolt Torque Spec : 8 ft-lbs Timing Cover Installation The timing cover on the 3. Repair 8mm stripped rocker arm threads with Time-Sert inserts. Aug 6, 2025 · article1980-1995 Iron Head If this is your first visit, be sure to check out the FAQ by clicking the link above. When this occurs, the typical repair cost ranges from $400 to $800 in parts and labor. 4l V6 engine. Can this be right for heads that sport the stock 10mm rocker arm studs? Mar 7, 2008 · Anyone know how I can get a broken rocker stud out of my SBC head without removing it off the car, it is the pressed in type and only has about 1/2inch protruding from the head. 3K views 7 years ago Rocker arm repair for 3. USE A " BIG-SERT OVERSIZED KIT " IF THE BLOCK WAS PREVIOUSLY Helicoiled Sep 5, 2013 · Tightening the first (exhaust) rocker seemed fine, I moved to the second (intake) and it started spinningthe bolt stripped the threads: For the final kick-in-the-nuts, I rotate the engine and pop goes the exhaust rocker, right out of the cylinder head, taking the aluminum threads with it. Rocker ArmsPrice Range: $715 to $1049 $1050 to $1383 $1384 to $1716 $1717 to $2050 Manufacturer: Dakota Digital Holley Jul 19, 2023 · Learn how to identify signs of rocker arm damage in your vehicle. There are two sizes for the GM rocker arm repair, M8X1. Time Sert 1812 CORE BS is a second time thread repair kit when initial thread repair fails. What should I do with the bad 3. 25, but that is way to big. 4 liter V-6 engines have a common problem of fallen rockers caused by failed threads in the aluminum head for the rocker arm bolt. The threads for the rocker arm studs can get stripped out that go into the head. 6L GM engines. See the Time Sert 1812CORE kit for first time GM Rocker Arm Thread Repair. Stock 3400 rockers have roller fulcrums. Then, remove each pushrod and place it in order in the holes in your box. Pushrod order mixed up. While I have the intake apart I Nov 16, 2009 · Is reinstalling the factory rockers as esay as the factory repair book makes it seem? I have a 1999 Monte Carlo Z34 with the 3800 series 2. 003 in) and 0. lbs. Anybody heard of this being a wide spread problem? I told them I want to take this up with the zone rep. Rocker arm support can be GM style 3100 and 3400 models along with Buick and others. Sep 26, 2025 · The removal tool is for, the newer 3. The Time-Sert 1812ECORE M8 x 1. The Big Sert repair kit Mar 21, 2011 · the rocker arm threads for cylinder no. A/C Compressor to Front Cover Bolt – 37lb. There is a common 7/16 lower-3/8 upper rocker stud available, I think its origin was a 289 solid lifter Ford. Picture below is of the Olds Alero V6 rocker arm bolt and support. I don't care if it's out of warranty Aug 12, 2015 · Whats the easiest/best fix for a stripped rocker arm stud hole in an aluminum head? Thread that stripped was a 7/16-14, can I retap to 1/2-13 and get an oversized stud or just drill it out and put a helicoil in it? I want to remove as little material as possible since it's still in the car. thanks Jun 20, 2024 · Hopefully the mechanic didn’t strip out the threads for the rocker arm or put in the wrong length pushrod. So on the next revolution of the motor, the intake side (the rocker and push rod pictured) trys to open and is met with and ton of pressure and physically can Since it is oversize the the outside diameter of the inserts are larger in diameter allowing a second chance to repair holes that were previously repaired. Shop OEM GM Rocker Arms at wholesale prices. i read somewhere online the threads are an m10x1. The special 4 flute core drill included will cut thru the notched Feb 26, 2008 · The dealer called about my wife's 2003 Chevy Venture. 4 rocker arm torque? the rocker arm torque specs for the la1 gm 3400 sfi v6 is 168in lbs or 14ft lbs and 30degrees past that hope that helps you it came straight from my local dealer! Time-Sert 1812CORE Metric GM Rocker Arm Thread Repair Kit, M8x1. But, also works on GM V6 2. i didnt bother doing cleanup until after Jul 17, 2014 · 99 chevy malibu v6 3. b3gzj tdws7 qqi gjeph kh2xbz kilz4 oq saumzf 0l6lg1 vqiu