Real Shop Help Call or text before you order Install Available Request install help Repair Status Track approved service work Fitment Review Check clearance before checkout Local Shop Support Hamilton, NJ performance help
Hurrey's Performance Image Coming Soon
Hurrey's Performance Image Coming Soon
Manley Performance

Manley Rotating Assembly, SBC 434 4.000 STROKE/+4cc DOME

Manufacturer part number: 290300RHX

Sale
Seen it cheaper? Send us the link. If we can beat it, we will.
CODE: MAN290300RHX
$3,372.75
$3,204.11 Backorder — not currently in stock Sold out
BACKORDER — not currently in stock

This item is on backorder. A shipping date is not confirmed. Contact us for current lead time: 609-249-4921.

View our return policy

Buy now, pay later with Shop Pay.

Choose Shop Pay at checkout to see your available payment options.

Rates from 0-36% APR. Payment options through Shop Pay Installments are subject to an eligibility check and are provided by these lending partners: affirm.com/lenders. Options depend on your purchase amount, and a down payment may be required. State notices to consumers: affirm.com/licenses.

Buy nowCheckout this item

Share your vehicle details now, or choose to provide them later. For multiple items or installation, use Add to cart.

Shipping and applicable taxes are calculated at checkout.

Select a vehicle info status to continue.

Shipping and applicable taxes are calculated at checkout.

Need it by a certain date? Call 609-249-4921 before ordering. Online availability does not confirm stock at our Hamilton shop; please call ahead for pickup or installation.

Your vehicle

Select or change your vehicle here before checkout. You stay on this product while Hurrey’s keeps the fitment context.

View compatible vehicles Call the shop Ask fitment
View compatible vehicles

Manley Rotating Assemblies are engineered as complete, matched systems to deliver maximum strength, balance, and performance in high-demand engines. Featuring precision-forged crankshafts, high-strength connecting rods, and premium pistons, each component is designed to work together seamlessly for optimal durability and efficiency. Tight tolerances and careful material selection ensure excellent load handling, reduced friction, and consistent performance under extreme RPM and cylinder pressure. By combining Manley’s proven rod, piston, and crank technologies into a unified package, these assemblies provide the reliability and confidence engine builders demand when pushing the limits of power.

  • 4340 Forged steel H-Beam connecting rods with 7/16 ARP 8740 or optional ARP 2000 cap screws
  • Horsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws
  • 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
  • Lightweight 4340 forged steel crankshaft