Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Sale

Engines and Components› Connecting Rods and Components

Molnar

H Beam Connecting Rods w/ ARP2000 Bolts

Name: H Beam Connecting Rods w/ ARP2000 Bolts
Brand: Molnar
SKU: CH6004JNB4-A

$558.75 $383.62 Save $175.13

SKU: CH6004JNB4-A

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Advanced — 4+ hours

Overview

The Molnar CH6004JNB4-A is a set of H Beam connecting rods designed for Chevy/GM ECOTEC 2.0 LTG engines. These rods are constructed from 4340 billet material, heat-treated for increased tensile strength, and shot peened to enhance fatigue life.

They feature a wear-resistant bronze bushing for the wrist pin and are equipped with 3/8 ARP2000 bolts. The connecting rods are finished in the USA and have a typical weight of 581 grams per rod.

Show original supplier description

The Molnar CH6004JNB4-A represents a high-performance upgrade for Chevy/GM ECOTEC 2.0 LTG engines, offering enhanced durability and reliability for demanding applications. These H Beam connecting rods are engineered from premium 4340 billet steel, a material known for its superior strength and resilience. Molnar Technologies subjects these rods to a rigorous heat treatment process to significantly boost their tensile strength, while shot peening is employed to increase resistance to fatigue. This ensures the rods can withstand higher stress loads and maintain performance over time. Each rod is fitted with a wear-resistant bronze bushing for extended wrist pin longevity and utilizes robust 3/8 ARP2000 bolts, custom-made by ARP, to ensure secure and reliable operation. These connecting rods boast a center-to-center length of 6.004 inches, a rod journal size of 2.052 inches, and a wrist pin size of 0.945 inches. The big end bore and pin end width are both precisely machined to 1.042 inches, contributing to optimal fitment and performance. With a typical weight of 581 grams per rod, these components are designed for balanced reciprocating assembly, a critical factor in engine high-RPM capability and smoothness. All Molnar Technologies connecting rods are meticulously finished in the USA at their facility near Grand Rapids, Michigan, underscoring a commitment to quality manufacturing.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Molnar
Part Number	CH6004JNB4-A
Category	Engines and Components

5,000+ Trusted brands

1M+ Enthusiasts

5M+ Parts sold

(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy