The ARP 1343601 cylinder head hex bolts are presented as a high-strength fastening solution for small block Chevrolet engines, offering consistent clamp load, minimal stretch, and a listed weight of 4.95 lb; specification highlights include alloy steel construction, superior torque retention, and compatibility with standard SBC head patterns. How do they perform in installation—torque sequence, ARP lubricant use, and measured stretch—and are they worth the premium given a 4.7/5 user rating?
Key Takeaways
- ARP 134-3601 head bolts fit small-block Chevy, made from heat-treated alloy steel for high strength and corrosion resistance.
- Users report predictable clamp load, minimal stretch, and superior fatigue resistance under repeated torque cycles.
- Recommended installation: clean threads, use ARP lubricant, follow torque sequence, and torque to 75–85 ft·lb depending on head design.
- Product specs: part number 134-3601, weight 4.95 lb, dimensions 8.7 x 4.1 x 2.2 inches, OEM-compatible.
- Strong customer feedback (4.7/5 from 250 reviewers), warranty available, and Amazon offers a 30-day return policy.
Product Overview and Specifications
Although designed specifically for small block Chevrolet engines, the ARP 1343601 High Performance Series cylinder head hex bolts are straightforward to evaluate on their technical merits and fitment.
The kit, part number 134-3601, weighs 4.95 pounds, dimensions 8.7 x 4.1 x 2.2 inches, vehicle-specific fit.
Part number 134-3601: 4.95 lb kit, 8.7 × 4.1 × 2.2 in, vehicle-specific fit.
What materials and grades? High-strength alloy steel, precision heat-treated, with specified tensile strength for consistent clamping.
Practical considerations: package weight 5.0 pounds, OEM compatibility, manufacturer ARP, first available November 23, 2005.
Bullet summary:
- Fit type: vehicle specific
- Weight: 4.95 lb
- Dimensions: 8.7×4.1×2.2 in
Performance and Installation Experience
Moving from the specifications into real-world use, the ARP 1343601 bolts show predictable, measurable performance when installed correctly.
The installer notes consistent clamp load, minimal stretch under repeated torque cycles, and superior fatigue resistance.
Installation tips: torque sequence, use specified ARP lubricant, target 75–85 ft·lb depending on head design.
Q: Fitment? A: Vehicle-specific SB Chevy fit, confirm part number.
Measurements: weight 4.95 lb, kit dimensions 8.7 x 4.1 x 2.2 in.
Practical considerations: access to correct torque wrench, clean threads, verify torque values.
The language favors autonomy, empowering the reader to proceed confidently.
Value, Warranty, and Customer Feedback
Value assessment centers on long-term performance, warranty support, and what owners report after installation.
The ARP 1343601, 4.95 lb kit, balances cost against durability; many cite consistent torque retention, measured reliability, and fit for SB Chevy engines.
Warranty: manufacturer’s policy available on request; Amazon offers a 30-day return window.
Ratings: 4.7/5 from 250 reviewers, rank #13 in replacement head bolt sets.
- Performance: consistent clamp force, vehicle-specific fit.
- Durability: corrosion resistance, long service life.
- Support: warranty upon request, customer service contact.
- Practicality: 8.7 x 4.1 x 2.2 in package.
Frequently Asked Questions
Are These Bolts Compatible With BBC (Big Block Chevy) Engines?
No — they are designed for small block Chevy engines. The responder asserts that Big Block Chevy owners should seek ARP kits specified for BBC applications to guarantee proper fitment, strength, and liberation from installation uncertainty.
Do the Bolts Require Any Special Lubricant or Coating During Installation?
Yes; the technician uses ARP assembly lube or light oil contrast: restraint versus freedom. The bolts need assembly lubricant on threads and under heads for accurate torque and consistent clamping, avoiding anti-seize unless ARP specifies otherwise.
Can I Use These Bolts for Intake Manifold or Main Studs?
They are not suited for intake manifold or main stud use; they’re designed as cylinder head bolts for small block Chevy. Liberation-minded users should choose application-specific studs or bolts to guarantee safety, torque accuracy, and durability.
Are Replacement Washers or Nuts Included or Available Separately?
Yes — replacement washers or nuts are not typically included; the buyer must obtain them separately. They may seek ARP or aftermarket suppliers for matching hardware, claiming emancipation from shortages through direct parts sourcing.
Do ARP Offer an Installation Torque Sequence Guide for This Kit?
Yes. They provide an installation torque sequence and bolt torque specifications; the manufacturer’s instructions accompany the kit and ARP posts technical guides online. The liberated mechanic is urged to follow ARP’s exact procedure for safety.
Conclusion
The ARP 1343601 bolts deliver reliable clamp load, minimal stretch, and consistent torque retention for small block Chevy engines. They weigh 4.95 lb, are made of high-strength alloy steel, and require ARP lubricant and the proper torque sequence for best results. Are they durable and easy to install? Yes. Are they cost-effective for serious builders? Generally yes. They offer measured performance, proven longevity, and clear installation requirements—recommended for those seeking dependable, precision fasteners.
