What to Consider When Selecting Pushrods
Determining the correct pushrod length is often regarded as one of the most intricate aspects of the selection process due to the variability in valvetrain geometry and design.
Trend Performance H-Series Pushrods
The new H-series pushrod solid design is available for all pushrod race engines operating under extreme stresses that do not oil the rocker balls through the pushrods.
Trend Performance Shelf Stock Pushrods
These one-piece, centerless-ground pushrods are made from chrome moly steel and are designed for today’s high-rpm, high spring pressure environments.
Erson Cams Pushrods
Erson Cams, which produces top quality camshafts for all types of racing, has released new performance pushrods. The purshrods are manufactured from 4130 aircraft quality seamless chrome moly, have centerless ground and fully hard turned 210° radius ends, and are black oxide coated. They have a through hardened and carburized tube with greater than 58
Trend Performance Precision Pushrods
These pushrods are created from 4130 chromoly thick-wall tubes and are made to tight tolerances.
Pushrods: What You Need to Know
In this episode of Steve Tech, Steve Morris of Steve Morris Engines talks about pushrods and what attributes you want to see in pushrods and what the effect of pushrods are in the valvetrain.
Valves, Rocker Arms & Pushrods
Just keep in mind your application, your rpm range and horsepower goals. The valvetrain puzzle falls into place from there.
Why Size and Strength Matters with Pushrods
When you start modifying OHV engines from their stock form – meaning low speed, light load, and rpms in the 6,000 to 6,500 range – the dynamics change. Installing a hot cam with more lift and duration means you’ll also have to upgrade the pushrods and valve springs to handle the higher engine speeds and loads.
Engine Parts: Lifters, Pushrods and Valve Springs
The valvetrain is one of the most critical components in any engine build, be it stock or performance. The lifters, pushrods, rockers and springs must all be strong and stiff enough to handle the loads and RPMs the engine will encounter, and they have to be durable enough to go the distance.
COMP Cams XD-A Adjustable Pushrods
COMP Cams has introduced a game-changing method for accurately setting lash or pre-load while using non-adjustable-style rockers. The patent-pending XD-A Adjustable Pushrods incorporate a top section that slides two inches inside a wider bottom section, with one or two shims captured in-between.
Engine Pro 4130 Premium One-Piece Pushrods
In the second of a four-part series on pushrods just released, Engine Pro’s Dave Sutton describes the company’s 4130 premium one-piece pushrod.
Selecting Pushrods, Rockers and Springs for Your Build
Everybody knows you need the right combination of valvetrain components to maximize an engine’s power potential. The trick is figuring out which components are the “right” ones for a given application. A high revving engine with an aggressive cam needs lightweight rocker arms and stiffer valve springs to keep up with the cam.
Why Pushrods Fail
The Michigan firm Trend Performance is a manufacturer and supplier of pushrods. In 1988 when Bob Fox founded his pushrod company after working the phones as a tech rep at Diamond Racing, things were different. During his time at the piston company he noticed that the performance of competition pushrods was a little better than adequate—their
Smith Brothers Pushrods Completes Move to New Facility
Smith Brothers Pushrods was started in California in 1953 by Hank and Joe Smith and was later moved to Bend, Oregon in the early 90’s to enjoy the clean air, mountains and streams. In 1999 the company was purchased by Dennis and Kristen Marshall and operated out of a 4,000 sq ft building. Dennis soon
Choosing Valvetrain Components: Lifters, Pushrods, Springs & Rockers
The type of parts you ultimately choose will depend on the application (street performance, circle track, drag, marine, etc.) and any rules that restrict the type of camshaft, lifters or other valvetrain components that are allowed. But don’t overlook your customer’s budget. Affordability often limits your choices if a customer just doesn’t have the bucks
Performance Lifters, Pushrods and Valve Springs
Low friction roller lifters replaced flat tappet lifters many years ago in stock production engines, but there are still plenty of hot flat tappet cams bumping the valves open in vintage muscle cars, street rods and race cars. Even NASCAR is still using flat tappet cams to actuate the valves. The advantage of flat tappet
Pushrods & Lifters
Pushrod engines have been dubbed as antiquated technology by some, but for many engine builders these engines are far from suffering the fate of the horse and buggy. In fact, with both GM and Chrysler keeping the pushrod engine alive in their current product lineups with the Gen IV, Hemi and others, pushrods and lifters
Pushrods – Key To Performance
Pushrods are the weakest link in the upper valvetrain. Pushrods transfer and redirect the upward motion of the lifters, which goes in one direction, to the rocker arms which move in another direction. Consequently, they are subjected to bending forces as the load and engine speed increases. For stock engines, mild steel stock pushrods are