Ultra Pro Magnum XD Rocker Arms Small Block Chevy 265-400

Name: Ultra Pro Magnum XD Rocker Arms Small Block Chevy 265-400
Brand: COMP CAMS
SKU: 249-1810-16
Price: 641.95 USD
Availability: InStock

^$641⁹⁵

Ships on Sep 14, 2026

Lowest Price Guarantee

Small Block Chevy 265-400

Small Block Chevy 265-400
1.5 Ratio
1/2" Stud
16/pkg
Provides Stiffer Valve Train To Achieve Maximum Motion
Deliver Increased Strength And Rgidity
Reduces The Moment Of Interia/Optimizing Dynamic Balance
Features A Machined Billet Pushrod Seat Insert
265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10

Machined from 8650 steel with a billet pushrod seat insert, these Ultra Pro Magnum XD rockers can handle up to 1,000 lbs of spring pressure. These 1810 rockers feature a 1.5 ratio for use with 1/2" stud Chevrolet 265-400 Small Block.

The next design evolution of Hi-Tech Stainless Steel Roller Rocker Arms is built to outlast and outperform in accuracy and strength. Ultra Pro Magnum XD Rocker Arms are engineered from durable 8650 steel and have a machined billet pushrod seat insert for super accurate ratios. A unique and wide ratio range is available to fit almost any popular application from 1.5 to 1.73 in .5 increments for Chevy and 1.6 to 1.73 for Ford. These XD Rockers are rebuildable and boast precision-sorted needle bearings and hardened roller tips, and they work with most diameter springs and retainers. The new XD design utilizes advanced FEA and CAD development to improve strength, stiffness, and MOI optimization for drag and circle track applications.

Features:

8650 steel construction outlasts and outperforms other rockers in accuracy and strength
Machined billet pushrod seat insert for a wide range of rocker ratios used in popular Chevy and Ford applications
Precision-sorted needle bearings better distribute the load and reduce wear for longer service life
Engineered for use in endurance, circle track, and drag race applications with improved strength and durability