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
Photo - Primary
User 2
User 1
Photo - out of package
User 3
Manley Performance

Manley Chevrolet Big Block Exhaust Valve Kit - 1.725in Head Dia. 5.374in O/A Length, 0.3715in Stem

Manufacturer part number: 11835-8

Seen it cheaper? Send us the link. If we can beat it, we will.
CODE: MAN11835-8
$405.34 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 Severe Duty® Valves deliver the ultimate in strength, reliability, and high-performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH-428 for exhaust and NK-844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400°F, Manley exhaust valves endured 100 million cycles, while competitors failed after just 100,000, proving a 1,000× longer fatigue life. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Built for those who demand race-winning strength and precision, Manley Severe Duty® Valves set the industry standard for performance and endurance.

  • Swirl polishing and machined faces improved airflow/optimized efficiency
  • Exotic alloys for superior tensile strength, reliability, and longevity
  • Proven fatigue strength for extreme performance
  • Chrome stems and hard tips enhance durability