I'm doing a 4l80 swap in my silverado 1500 which had a 4l60, are these bolts the correct length to go through my flex plate and it's spacer?

I used these in a tci flexplate conversion for th350/th400 also using converter spacer and they worked perfectly

will these fit the LSA crankshaft and flexplate without a spacer?

The LSA crankshaft is an 8 bolt so you'll need to buy 2 sets and it fit on my LSA in my 09 CTS v with no issues

Are these bolts a replacement or upgrade to gm performance flexplate bolt gm ls-series part number 19257940?

They are both! They replace factory LS flexplate bolts. I have a turbo 6.0 LS and it will destroy factory bolts on a good launch and these arp bolts have been in about a year and have not let me down yet

Will these fit a 2006 gmc sierra 1500 with the 5.3? I only have 3 bolts

These bolts goes from the flex plate to the crank.The three bolts goes from the flex plate to the torque convertor if these 3 you need,you may try this number ARP 230-7304.Hope this helps.Good luck.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

ARP 2442901 Pro Series Flexplate Bolt Kit for Gen II/LS Series Small Block Chevrolet

Product ID: 18795468

Details

Exterior Finish
Per Item
Head Style
Cup Flat
Manufacturer Grade
Grade 2
Material
Stainless
Thread Size
M11

🔥Heat-treated & thread-rolled for durability

🔩M11 x 1.5 thread size for precision fit

⚙️Forged aerospace alloy for unmatched strength

$68.77

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Description

🔧 Lock in power with bolts engineered to dominate the track and the street.

ENHANCED DURABILITY - Heat-treated and thread-rolled for superior resistance to wear and stress under high RPMs.
LARGER SHANK DIAMETER - Upgraded shank thickness boosts flexplate stability and reduces failure risk.
PRECISION FIT FINISH - M11 x 1.53 thread size with a flat 12-point head ensures perfect alignment and torque control.
PRO SERIES RELIABILITY - Trusted by top automotive pros, ranked #1 in Performance Engine Main Bolts & Studs.
AEROSPACE GRADE STRENGTH - Forged from premium aerospace alloy to outperform OEM bolts every time.

The ARP 2442901 Pro Series Flexplate Bolt Kit is a set of six M11 x 1.53 metric bolts forged from aerospace-grade alloy, heat-treated and thread-rolled for maximum strength and durability. Featuring a flat 12-point head and a larger shank diameter, these bolts provide superior fit and reliability for Gen II/LS Series Small Block Chevrolet engines, making them the top choice for performance enthusiasts and professionals alike.

Specifications

ASIN	B003XUH4QM
Best Sellers Rank	#104,619 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Performance Engine Main Bolts & Studs #10 in Automotive Replacement Engine Main Bolts & Studs #36 in Automotive Replacement Engine Connecting Rods & Parts
Brand	ARP
Color	Black
Compatible Groove Diameter	11 millimeters
Customer Reviews	4.8 4.8 out of 5 stars (311)
Drive System	Rear-Wheel Drive
Exterior Finish	Per Item Description
Fastener Size	7/16 in.
Fastener Type	Hexagon Bolt
Finish Types	Black Oxide
Global Trade Identification Number	00672036035105
Head Type	Hex
Included Components	Per Item Description
Item Diameter	11 millimeters
Item Hardness	Grade 2
Item Weight	6.72 ounces
Manufacturer	ARP
Manufacturer Grade	Grade 2
Material Type	Stainless Steel
Metal Type	Alloy Steel
Model	2442901
Number Of Items	1
Number of Packs	1
Part Interchange Info	244-2901
Part Number	2442901
Screw Head Style	Cup, Flat
Screw Point Style	Cup, Flat
Set Name	ARP Pro Series Flexplate Bolt Kit (Set of 6)
Size Name	7/16 in.
Thread Class	3B
Thread Coverage	Fully Threaded
Thread Size	M11
Thread Style	Right Hand
Thread Type	Metric
UPC	672036035105
Unit Count	6 Count
Warranty Description	30 Days

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$68.77

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews