ARP 135-5201 Main Bolts Big Block Chevy 4-Bolt Main 396/402/427/454

ARP 135-5201 Main Bolts Big Block Chevy 4-Bolt Main 396/402/427/454

$115.66 In Stock Sold out
CODE: ARP135-5201




  • Description
  • Shipping and Refund
  • Reviews

ARP's Main Bolts are far superior to any other main bolts available, for use in both street or competition, designed to meet the exacting standards and demands of professional engine builders. Forged from 8740 chrome moly steel, all main bolts feature a reduced wrenching head, large underhead radius and rolled threads for the utmost in reliability. The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating. Hardened parallel-ground washers are included with each kit.

High Peformance Series: Rated at 180,000 psi and are a premium replacement for OEM fasteners.

Pro Series: Application-specific, rated at 190,000 psi and designed for use in competition engines.


  • ARP High Performance Main Bolts Big Block Chevy 4-Bolt Main 396/402/427/454. Buy now and get same day shipping!
  • Fastener Style: Bolt
  • Fastener Yield Strength (psi): 180,000
  • Head Style: Hex
  • Main Bolt Style: 4-bolt
  • Nuts Included: No
  • Quantity: Sold as a kit
  • Washers Included: Yes
  • Works with Windage Tray: No


  • We do our best to ship most items same or next day.
  • For all products, free fast delivery of the UPS is already included in the price.

Shipping is Free 🙂



Shipping and Delivery Times


  • All in-stock products are shipped within one business day. Delivery usually takes 2-5 business days. We have a large number of warehouses in different states which allows us to deliver the orders very fast.





  • Most products are shipped via UPS Ground, FedEx depending on size with some large items shipped by SAIA or others.
  • Once your order ships, tracking details will be emailed to you.



Where’s my order?


  • Good question, when tracking details have been provided that means your order has been processed and shipped. Tracking details usually appear in the shipper’s database within one business day, i.e. UPS and FedEx generally provide point-in-time tracking meaning your order location is updated as it is scans and gets closer to you.  Most orders should arrive within 2-5 business days. Still have an issue with delivery, please contact us to see how we can help.





  • Cancellations are free. Please contact us ASAP if you need to cancel your order.

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