Best Arp Engine Main Bolts in 2026

Daisy
Last Updated: Jul 17, 2026

At a Glance: Our Top Picks for Arp Engine Main Bolts

ARP 2342503 Stud Kit
#TOP1
Arp 2342503 Stud Kit
9.9
PM SCORE
ARP 234-2504 12-Point Balancer Bolt Kit for GM LS7
#TOP2
Arp 234-2504 12-Point Balancer Bolt Kit For Gm
6.7
PM SCORE
ARP 1345202 High Performance Series Main Bolt
#TOP3
Arp 1345202 High Performance Series Main Bolt
6.4
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Arp Engine Main Bolts of 2026

Arp 2342503 Stud Kit

ARP
2342503
10.00 X 6.00 X 1.75 Inches
1.01 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

ARP balancer bolt kits will ensure that your balancer is locked into position.?

Part number: 2342503

Fit type: Vehicle Specific

Package Weight: 0.454 kilograms

#TOP2
Best For Arp

Arp 234-2504 12-Point Balancer Bolt Kit For Gm Ls7

ARP
234-2504
0.00 X 0.00 X 0.00 Inches
1.04 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Package Dimensions: 10 L x 1.75 H x 6 W (inches)

Package Weight : 1.05 pounds

Country of Origin : United States

Part number: 234-2504

Arp 1345202 High Performance Series Main Bolt

ARP
1345202
0.00 X 0.00 X 0.00 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Package Dimensions: 5.842 H x 22.098 L x 10.668 W (centimeters)

Made in USA

Main Stud/Bolt Kit

Part number: 1345202

Arp 234-5608 Main Stud Kit

ARP
234-5608
8.50 X 4.00 X 2.50 Inches
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Get the best with ARP

When you want strong, go with ARP

Precision products for street, offroad, and Powersports applications

#TOP5
Best For Arp

Arp 208-2501 Balancer Bolt Kit For Honda B16/B18

ARP
208-2501
5.00 X 2.00 X 7.00 Inches
0.41 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Package Dimensions: 10 L x 1.25 H x 6 W (inches)

Package Weight : 0.49 pounds

Country of Origin : United States

Part number: 208-2501

#TOP6
Best For Arp

Arp 150-2505 Engine Harmonic Balancer And Component (Ford 6.4L Diesel Bolt Kit)

ARP
150-2505
10.00 X 6.00 X 1.00 Inches
3.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Performance Parts Racing 9.67

Features

Increased Reliability

Arp 5349501 Stainless 300 12-Point Engine & Fastener Kit

ARP
5349501
0.00 X 0.00 X 0.00 Inches
3.37 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

SB Chevy SS 12pt Accessory Kit

Part number: 5349501

Package Weight: 3.3 pounds

Fit type: Vehicle Specific

Arp 156-5201 Main Cap Side Bolt Kit For Ford M8 Modular Block

ARP
156-5201
0.00 X 0.00 X 0.00 Inches
0.99 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

ARP Main Bolt Kit 2 Bolt Main Ford Modular P/N 156-5201

Package Dimensions: 1.27 H x 25.146 L x 14.732 W (centimeters)

Package Weight: 1.0 pounds

Oem equivalent part number: 156-5201

Arp 2345501 Main Cap Stud Kit

ARP
2345501
4.00 X 3.00 X 9.00 Inches
1.80 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Main studs are designed to meet the exacting standards and demands of professional engine builders

Manufactured from 8740 chrome moly steel

Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware

Rolled J-form threads are 1000% stronger than other threads

Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly

Arp 2085402 Main Stud Kit For Honda B16A/Vtec Engine

ARP
208-5402
4.00 X 3.00 X 9.00 inches
2.16 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Package Dimensions: 5.842 H x 21.843 L x 10.668 W (centimeters)

Made in USA

Main Stud/Bolt Kit

Part number: 2085402

Arp 1945601 Main Stud Kit, 200,000 Psi Chrome Moly Steel, For Select Pontiac V8 4-Bolt Main Applications, 400, 455 Cid

ARP
1945601
0.00 X 0.00 X 0.00 Inches
4.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fast Track Auto 8.79

Features

Main studs are designed to meet the exacting standards and demands of professional engine builders

Manufactured from 8740 chrome moly steel

Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware

Rolled J-form threads are 1000% stronger than other threads

Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly

Moroso 22943 Louvered Windage Tray, Fits Gm Ls Engine Using Arp Main Studs

MOROSO
22943
5.00 X 11.25 X 20.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Louvered design allows oil thrown from the rotating assembly to drain into the sump without splashing back, reducing windage, increasing horsepower and cutting down on oil temperature

Manufactured from 16 gauge steel

Mounts right to the main caps with the customer supplied ARP Main Stud Kits

For use with Moroso Oil Pans

Arp Rws-1B Stepped Main Stud With Windage Tray

ARP
RWS-1B
72.00 X 6.00 X 6.00 Inches
0.27 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Racer's Speed Shop 9.63

Features

Product Type:Bolts

Item Package Dimension:6.0 " L X0.5 " W X0.5 " H

Item Paackage Weight:0.27 lbs

Country Of Origin: United States

Arp 234-5801 Main Stud Kit For Small Block Chevy

ARP
ARP-234-5801
0.00 X 0.00 X 0.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

ARP Main Stud Kit Hex Nuts 4-Bolt Mains Small Block Chevy P/N 234-5801

Part number: ARP-234-5801

Fit type: Vehicle Specific

Package Weight: 1.5 kilograms

Arp 1405401 Main Stud Kit

ARP
1405401
0.00 X 0.00 X 0.00 Inches
3.09 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Main studs are designed to meet the exacting standards and demands of professional engine builders

Manufactured from 8740 chrome moly steel

Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware

Rolled J-form threads are 1000% stronger than other threads

Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly

Arp For Volkswagen/Audi Main Stud Kit - 2.0L Fsi 4-Cyl L4-1984Cc Engine

KARPARTS360
TLX-ARP204-5408-CL360A70
1.80 X 8.70 X 4.20 Inches
1.80 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
KarParts360 9.78

Features

ARP Compatible With VW/Au-di 2.0L (FSI) 4cyl Main Stud Kit

Part Number: 204-5408

Made from the highest quality materials.

Built to outperform and outlast the competition.

Factory Sealed - Brand new in box

#TOP17

Arp 134-1003 High Performance Cam Sprocket Bolt Kit (180 000 Psi) Chevrolet All Models

ARP
34-1003
6.00 X 4.00 X 0.63 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Performance Parts Racing 9.66

Features

ARP LS Cam Bolt Kit 134-1003

These are perfect when upgrading your single bolt cam to an aftermarket 3 bolt camshaft and timing chain gear.

4.8 5.3 5.7 6.0 LS1 LS2 LS3 LS6 L99 LS4 LS9 LSA LQ4

These high-quality ARP cam bolts have increased preload clamping force to ensure positive timing gear register. Their increased material strength overcomes valve train harmonics and stress.

Arp 247-4202 Stud Kit & 100-9910 Ultra Torque Assembly Lubricant - 10 Oz. Brush Top Container

ARP
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Product 1: Lubricate the both sides of the washers with ARP ultra-Torque Fastener Assembly Lubricant then place them over the studs onto the cylinder head spot faces.

Product 2: Country of origin : United States

Product 2: Package Dimensions : 5" L x 2.5" W x 2.5" H

Product 2: Package weight : 0.65 pounds

Product 2: Model number : 100-9910

Top 10 engine main bolts Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Arp 16
Karparts360 1
Moroso 1

Top 10 engine main bolts Brands Pie Chart


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We are dedicated to assisting our users in finding the right studs Products based on their needs, saving them considerable time when choosing which engine main bolts to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.