Product Description:
Hawks Motorsports is pleased to offer our clients the following 430-3506 LS1/LS2/LS6 Applications Starter Bolt Kit, ARP. This starter bolt kit is designed for Gen III/IV LS-series applications and includes one short and one long M10 starter bolt. ARP specifies 1.775" and 4.470" underhead lengths, with washers included.
When you're building an LS-powered car and you're staring at the starter tucked into a tight spot between the block, headers, and chassis, the last thing you need is a bulky fastener head making the job harder. These ARP starter bolts use smaller-diameter hex heads to give you more room to get a socket on the fastener—especially useful when you're working on a swapped, modified, or race-oriented LS setup where access can get tight in a hurry.
The 430-3506 kit is manufactured from stainless steel and is rated by ARP at 180,000 psi tensile strength. The kit contains one 1.775" bolt, one 4.470" bolt, and the required washers. ARP identifies this part specifically for Gen III/IV LS-series small-block applications with M10 threads.
KEY FEATURES
- Part Number: 430-3506
- Manufacturer: ARP
- Product Type: Starter bolt kit
- Application: Gen III/IV LS-series small-block engines
- Thread Size: M10
- Thread Pitch: 1.50
- Head Style: Hex
- Material: ARP stainless steel
- Finish: Polished stainless steel
- Tensile Strength: 180,000 psi
- Short Bolt Underhead Length: 1.775"
- Long Bolt Underhead Length: 4.470"
- Quantity: 2 bolts
- Configuration: One short and one long bolt
- Washers: Included
- Small-diameter heads for improved access in tight areas
- Designed for starter installation on LS-series applications
PRODUCT SPECIFICATIONS / PRODUCT DETAILS
| Specification | Details |
|---|---|
| Manufacturer | ARP |
| Part Number | 430-3506 |
| Product Type | Starter Bolt Kit |
| Engine Family | Gen III/IV LS Series |
| Thread Size | M10 |
| Thread Pitch | 1.50 |
| Head Style | Hex |
| Material | ARP Stainless Steel |
| Finish | Polished Stainless Steel |
| Tensile Strength | 180,000 psi |
| Short Bolt | 1.775" UHL |
| Long Bolt | 4.470" UHL |
| Quantity | 2 bolts |
| Bolt Configuration | 1 short / 1 long |
| Washers | Included |
| Shipping Weight | 0.4 lbs |
| Shipping Dimensions | 10.00" × 6.00" × 0.75" |
Note: ARP's current product page identifies 430-3506 as the Chevy long-and-short M10 starter bolt kit and lists the two underhead lengths as 1.775" and 4.470".
VEHICLE FITMENT / FITS THE FOLLOWING MODELS
The primary application is the Gen III/IV LS-series small-block engine, rather than a specific vehicle year range. ARP's current catalog identifies 430-3506 for Gen III/IV LS-series small-block engines using M10 starter bolts.
LS1 Applications
Common LS1 vehicle applications include:
- 1997-2004 Chevrolet Corvette C5 — LS1
- 1998-2002 Chevrolet Camaro — LS1
- 1998-2002 Pontiac Firebird Formula — LS1
- 1998-2002 Pontiac Firebird Trans Am — LS1
LS2 Applications
The 430-3506 is applicable to LS2 configurations using the one-short/one-long M10 starter-bolt arrangement.
LS6 Applications
The 430-3506 is applicable to LS6 configurations using the one-short/one-long M10 starter-bolt arrangement.
Important: Starter mounting configurations can vary between LS engines and starter assemblies. Verify that your application uses one 1.775" bolt and one 4.470" bolt before ordering. Current application data also shows 430-3506 being used across additional LS-family engines, so the starter/block configuration—not simply the engine designation—should be the final fitment check.
IMPORTANT APPLICATION NOTES AND EXCLUSIONS
- This kit contains one short and one long starter bolt.
- Verify your starter mounting arrangement before ordering.
- The specified underhead lengths are 1.775" and 4.470".
- The bolts use an M10 × 1.50 thread.
- ARP's current catalog identifies 430-3506 for Gen III/IV LS-series small-block applications.
- Do not assume this kit fits every LS engine or starter combination.
- Some LS applications use a different starter-bolt configuration. Verify the required bolt lengths before ordering.
- ARP lists 430-3510 as the corresponding Gen III/IV LS-series 12-point version with the same 1.775"/4.470" length configuration.
INSTALLATION NOTES
- Verify the starter, block, and required bolt lengths before installation.
- Confirm the starter uses one short and one long mounting bolt.
- Clean the block's starter-mounting threads before installation.
- Inspect the bolt threads and seating surfaces before assembly.
- Install the bolts without forcing or cross-threading.
- Tighten the starter bolts according to the applicable manufacturer's specifications.
- Confirm adequate clearance around the starter and fastener heads before final assembly.
- Follow current ARP recommendations and the engine/starter manufacturer's installation specifications.
FREQUENTLY ASKED QUESTIONS
What engines does ARP 430-3506 fit?
ARP identifies 430-3506 for Gen III/IV LS-series small-block engines using the M10 long-and-short starter-bolt configuration.
What size are the starter bolts?
The bolts use an M10 × 1.50 thread.
What are the two bolt lengths?
The kit contains one bolt measuring 1.775" UHL and one measuring 4.470" UHL.
How many bolts are included?
The kit contains two starter bolts, one short and one long. Current product listings also identify washers as included.
What are these starter bolts made from?
ARP identifies the 430-3506 as a stainless-steel starter bolt kit. ARP's current product page lists the material as ARP Stainless and a tensile strength of 180,000 psi.
Are the bolts 6-point or 12-point?
430-3506 is the hex-head version. ARP's catalog separately identifies 430-3510 as the 12-point Gen III/IV LS version.
Will this fit every LS engine?
Do not assume so. Verify that your engine and starter use the M10, one-short/one-long configuration specified for 430-3506.
Are washers included?
Yes. ARP identifies washers as included with the kit.
