Will this work on a 02 civic EM2?

probably not. bolt lengths are different

Will this fit Toyota Prius 1.8 l engine no

No. Put in your auto information for the ARP STUD it will give you the correct one.

Hey can these fit zc sohc i hear they or family to the d16ys

ARP lists these to fit the D16Y engines, not the D16A engines.

Why don’t they come with lifetime warranty? This is arp right?

This item is an ARP product and all warranty claims go through ARP directly.

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ARP 2084305 High Performance 12-Point Cylinder Head Stud Kit

Product ID: 30899294

Details

Exterior Finish
Painted
Head Style
12-point
Manufacturer Grade
premium
Material
Cold-forged
Thread Size
0.625 inches

🔩8740 Alloy Steel - Premium Strength

⚙️200,000 psi Heat-Treated Precision

🛠️12-Point Studs for Perfect Alignment

KD 54.14

Duties & taxes included

In stock

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Description

🔧 Lock in power with precision-engineered studs that race ahead of the pack!

PERFECT CONCENTRICITY - Centerless ground studs ensure flawless alignment, making gasket and head installation effortless.
RACE PROVEN PERFORMANCE - Trusted by top Sport Compact racers for turbocharged and high-compression Honda D16Y engines.
OPTIMIZED CLAMPING FORCE - Special undercut studs balance stretch, preventing blown head gaskets and maximizing seal integrity.
PRECISION HEAT TREATMENT - Studs heat-treated to 200,000 psi for exceptional fatigue resistance and reliability under extreme conditions.
UNMATCHED STRENGTH DURABILITY - Crafted from premium 8740 alloy, delivering superior tensile strength for high-performance engines.

The ARP 2084305 High Performance 12-Point Cylinder Head Stud Kit is a premium-grade, cold-forged alloy steel kit designed specifically for Honda D16Y engines. Featuring 8740 alloy material, heat-treated to 200,000 psi and centerless ground for perfect alignment, these studs deliver superior strength, fatigue resistance, and optimal clamping force. Engineered for high-compression and forced induction setups, this kit ensures reliable head-to-block sealing, preventing gasket failure and boosting engine performance.

Specifications

ASIN	B000CFS2DK
Best Sellers Rank	#172,512 in Automotive ( See Top 100 in Automotive ) #39 in Automotive Performance Engine Parts
Brand	ARP
Color	Black
Compatible Groove Diameter	0.65 inches
Customer Reviews	4.9 4.9 out of 5 stars (150)
Drive System	Front-Wheel Drive
Exterior Finish	Painted
Fastener Size	0.625 inches
Fastener Type	Stud Bolt
Finish Types	Black oxide
Global Trade Identification Number	00672036030155
Grade Rating	Grade 8740
Head Type	Honda D16Y
Included Components	Head Stud & Bolt Kits
Item Diameter	0.44 inches
Item Hardness	Grade 8740
Item Type Name	Head Stud & Bolt Kits
Item Weight	2 pounds
Manufacturer	ARP
Manufacturer Grade	premium
Material Type	Cold-forged Alloy Steel
Maximum Shear Strength	90 ksi
Metal Type	Alloy Steel
Model	2084305
Number Of Items	1
Number of Packs	1
Number of Pieces	12
Part Number	2084305
Screw Head Style	12-point
Screw Point Style	12-Point
Set Name	Kit
Set Screw Thread Type	UNC
Size Name	0.625 inches UNC
Thread Class	2A
Thread Coverage	Fully Threaded
Thread Size	0.625 inches
Thread Style	Right Hand
Thread Type	Unc
UPC	672036030155
Unit Count	1 Count
Warranty Description	Manufacturer Warranty

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