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PQY 12-Point Cylinder Gasket Head Stud Bolts Nuts Kit Compatible with 04-19 Chevy LS1 LS3 5.3L 5.7L 6.0L Engines 234-4317
- Replace part number of the this head stud bolts kit is 234-4317, 234 4317, 2344317.
- Material: made of high quality 35CrMo. Fastener Style: Stud Head Style: 12-Point (12pt) M11 Bolts Torque: 70ftlbs M8 Bolts Torque: 25ftlbs Tensile Strength: 180,000 PSI
- Package Included: 10x M8 Stud,20x M11 Head Stud,30x Parallel-ground Washer,30x 12-Point Nut.
APPLICATION：
Compatibe with 04-Newer LS1 LS3 5.3L/5.7L/6.0L Engines.
Compatible with Chevy 04-19 LS1 LS6 L98 4.8L/5.3L/6.0L Engines.
Please check your engine with all same length studs.
Noah Lunsford
2025-08-30 18:55:45
Great Head Stud for the price, hex head in top of stud made install much faster.
bruce kline
2025-08-05 13:53:43
Does not fit bottom outside head bolt too short does not fit LM motors LS motors or LQ motors. Do not buy for Chevy V8
Dan and Dawn
2025-07-22 13:30:07
So far I very happy with this stud kit. The price is great and the quality is just a good.
jade
2025-06-29 13:40:24
It is very important that head and washers are clean and oil/grease free. after washer is on the stud then apply small amount of arp lube to threads and bottom of nut. if you lube washer or head surface you will over tighten and possible break studs plus they will not have constant torque load.
justin
2025-05-29 21:10:33
Why would you spend so much more on a product that works perfectly fine at this price range...
Customer
2025-04-27 13:38:20
I've bought 6 sets of these for GM gen3 and gen4 LS motor rebuilds/updates and out of that I have installed 3 of the 6. Out of the 3 sets installed 2 sets have failed now. The heads and block for each build was machined by a reputable shop, verified during build, all the bolt threads were chased, ARP moly lube was used on the studs/washers/nuts, the tightening pattern and procedure was followed and GM performance MLS gaskets were used. While removing the heads for a coolant leak into the crankcase on the most recent I pulled the records and verified final torque was done at 80ftlbs after letting them sit for 15 minutes at the previous spec. So setting the same torque wrench used to install them to peak and backing each one off the highest torque reading was down to 48.6ftlbs. They are not a 180,000psi bolt as stated if they stretched enough to drop 31.4ftlbs plus of torque after just 300 miles. Needless to say the other 3 sets I have will be going in the trash now! Spend the extra money on a better bolt/stud set!!
Joshua Jimenez
2025-04-25 18:04:04
For the price one can be skeptical, but they have been great. I didn’t torque them down to 80 as some of these other reviews say they did. But the never stripped, broke, or failed. Engine is still together, running a tsp chopacabra cam. Beat the living daylights out of it in 2024. Great buy for the money.
francisco nava
2025-04-06 14:18:24
product looks good i checked the fit and finish the original bolts are designed or one use and not reusableso these are a good alternative in order to reuse
Noah Lunsford
2025-03-06 14:52:56
Great Head Stud for the price, hex head in top of stud made install much faster.
bruce kline
2025-02-05 15:13:34
Does not fit bottom outside head bolt too short does not fit LM motors LS motors or LQ motors. Do not buy for Chevy V8
Dan and Dawn
2025-01-26 10:56:30
So far I very happy with this stud kit. The price is great and the quality is just a good.
jade
2025-01-09 12:51:45
It is very important that head and washers are clean and oil/grease free. after washer is on the stud then apply small amount of arp lube to threads and bottom of nut. if you lube washer or head surface you will over tighten and possible break studs plus they will not have constant torque load.
justin
2024-12-27 18:02:10
Why would you spend so much more on a product that works perfectly fine at this price range...
Customer
2024-12-15 15:41:48
I've bought 6 sets of these for GM gen3 and gen4 LS motor rebuilds/updates and out of that I have installed 3 of the 6. Out of the 3 sets installed 2 sets have failed now. The heads and block for each build was machined by a reputable shop, verified during build, all the bolt threads were chased, ARP moly lube was used on the studs/washers/nuts, the tightening pattern and procedure was followed and GM performance MLS gaskets were used. While removing the heads for a coolant leak into the crankcase on the most recent I pulled the records and verified final torque was done at 80ftlbs after letting them sit for 15 minutes at the previous spec. So setting the same torque wrench used to install them to peak and backing each one off the highest torque reading was down to 48.6ftlbs. They are not a 180,000psi bolt as stated if they stretched enough to drop 31.4ftlbs plus of torque after just 300 miles. Needless to say the other 3 sets I have will be going in the trash now! Spend the extra money on a better bolt/stud set!!
Joshua Jimenez
2024-11-26 16:39:12
For the price one can be skeptical, but they have been great. I didn’t torque them down to 80 as some of these other reviews say they did. But the never stripped, broke, or failed. Engine is still together, running a tsp chopacabra cam. Beat the living daylights out of it in 2024. Great buy for the money.
francisco nava
2024-11-13 14:23:15
product looks good i checked the fit and finish the original bolts are designed or one use and not reusableso these are a good alternative in order to reuse
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