Will these studs work on my 2005 lly duramax?

Yes, this fits the LB7 and LLY Duramax engines. Make sure to buy from Eric's Performance Parts!

Are these 12 mm studs? Or do I need to bore out the holes on my lb7 to fit them?

These fit all GM Duramax engines through at least 2015. There's nothing different or special about the LB7's head fasteners.

Is this the complete sete of studs for both sides?

Yes mate head studs only for both sides

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ARP2304201 Head Stud for Chevy Duramax 6.6L

Product ID: 12798262

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🖤Sleek finish

⚙️Durable fasteners

🇺🇸Made in USA

Description

🔩 Elevate Your Engine Game!

OEM QUALITY - Meets or exceeds original equipment manufacturer standards.
PRECISION FIT - Designed specifically for Chevy Duramax 6.6L engines.
LIGHTWEIGHT POWER - Weighs only 11.87 lbs for optimal performance.
UNMATCHED STRENGTH - Engineered for maximum durability and performance.
CORROSION RESISTANCE - Black oxide finish ensures longevity and reliability.

The ARP2304201 Head Stud is a premium cylinder head fastener designed specifically for Chevy Duramax 6.6L engines. Manufactured in the USA, this product features a durable black oxide finish that enhances corrosion resistance while ensuring a precise fit and unmatched strength. Weighing in at just 11.87 pounds, it meets OEM standards, making it a reliable choice for performance enthusiasts.

Specifications

Manufacturer	ARP
Brand	ARP
Item Weight	11.87 pounds
Country of Origin	USA
Item model number	230-4201
Is Discontinued By Manufacturer	No
Exterior	Black Oxide
Manufacturer Part Number	2304201
OEM Part Number	230-4201

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