Connecting Rods, Rod Bolts & Pushrods

Shop connecting rods, rod-bolt kits and valvetrain pushrods at Black Ops Auto Works. Compare Eagle, Brian Crower, Carrillo and Supertech rod references with ARP fasteners, COMP Cams pushrods and the listed Fleece/OMIX service choices. Choose the engine assembly being built first: connecting rods and pushrods perform different jobs.

Connecting Rods for the Rotating Assembly

Connecting rods link the crankshaft to the pistons. Choose the exact engine family, crank journal, rod length, piston-pin interface and widths for the planned short block. The selection includes four-, six- and eight-cylinder references with different supplied quantities.

Compare the manufacturer’s complete beam/material/bolt arrangement for the intended load, rpm and use. H-beam and I-beam labels alone do not establish a universal strength ranking. Stroker and pin/journal-conversion references require their stated crank and piston combination.

ARP Rod Bolts and Replacement Hardware

The ARP selection includes specific engine/rod references and general-replacement configurations that require dimensional verification. Match thread, under-head length, grip, material and the original rod requirements. A bolt fitting the hole is not proof of an approved replacement.

Use the exact rod/bolt maker’s tightening and inspection procedure. Lubricant and torque/stretch requirements are tied to the fastener and assembly. Installing a different fastener can require the engine builder to recheck the rod housing and complete fit before final assembly.

COMP Cams and Diesel Pushrods

Pushrods transfer motion through a supported valvetrain rather than joining the crank and piston. COMP Cams High Energy and Hi-Tech references identify particular lengths, diameters, wall constructions and engine applications. HEMI intake and exhaust pushrod lengths can differ within one set.

The Fleece Cummins Stage 2 reference is a separate diesel-valvetrain choice. Match actual engine configuration and valvetrain requirements rather than applying a gasoline pushrod specification. OMIX engine pushrods and a Dana 300 linkage thimble are also listed; the transfer-case piece is not an engine pushrod.

Measure the Actual Engine Combination

Pushrod selection depends on the assembled heads, lifters, rockers, cam/base-circle arrangement and required preload or lash. A checking pushrod helps determine the supported length. Head/block machining or other component changes can alter the required setup.

For connecting rods, have the machine shop check the crank/piston interfaces, clearances and balance. For pushrods, check length, ends, clearance and the complete valvetrain setup. Category membership does not replace those separate assembly plans.

Choose Your Part

• Choose rotating-assembly rod, rod-bolt or valvetrain pushrod scope.
• Identify the actual engine and all mating components.
• Compare the relevant dimensions, material, fastener or end configuration.
• Review measured assembly requirements, quantity and installation instructions.

Frequently Asked Questions

What is the difference between connecting rods and pushrods?

Connecting rods join pistons to the crankshaft. Pushrods transfer motion through a supported valvetrain. They serve different engine systems and use different selection measurements.

How should I select an ARP replacement rod bolt?

Match the exact approved rod/bolt configuration, dimensions and material, then use its specified tightening and inspection procedure.

Why can HEMI intake and exhaust pushrods have different lengths?

Their valvetrain geometry can require different specified lengths. Match the exact engine and set rather than using one length for every position.

When should pushrod length be measured?

Measure it for the actual assembled valvetrain, especially after changes to heads, lifters, rockers, cam or machined dimensions. Follow the component maker’s checking method.

How should I compare a Fleece diesel pushrod with a COMP gasoline reference?

Compare each exact engine and valvetrain specification. Shared diameter or performance labeling does not establish interchangeability.

What should I confirm about quantity?

Check whether the listing supplies one component, an engine set, intake/exhaust positions or a fastener package. The category name does not establish the count.

Related Collections

Connecting Rods · Rod Bolt Kits · Pistons · Camshafts