News & Reviews / 193 posts found
Conley Stinger V8 Tour
The latest in a long line of Conley engines is the Stinger 609, so named because of its total displacement of 6.90 cubic inches (about 100 cc). This engine is all new with no common parts from previous engines. It features a 1.00-inch bore with a...
Reid Railton: Man of Speed
Engineering proficiency reveals itself in many forms, but rarely does it articulate itself so profoundly that a lifetime of work achieves legendary status. Such is the case with Reid Railton, an engineer whose breadth of accomplishments left an indelible mark on land speed racing and...
How to Build Racing Engines: Guide to Torque and Horsepower
Competition engines are designed and built to generate maximum torque and horsepower for their size and intended operating environment. Torque is the heart of the matter. Defined as...
Koul Tools Braided Hose Assembly Kits
Koul Tools hose end assembly kits have been on the market for some time, but its amazing how many people still don't take advantage of them ...
Earl’s New Vapor Guard Hose and Fittings
Earl's new Vapor Guard hose and hose ends provide a complete, economical solution that virtually eliminates fuel permeation issues common with...
Why Johnson Hydraulic Roller Lifters Belong in Your Engine
Johnson Lifters wants to be your valve lifter source. A primary supplier with top tier manufacturing capabilities, the 90 year old company functions seamlessly within the high stress, low tolerance OEM environment where quality control inspections are mandatory and frequent. An essential part of Johnson Lifter’s quality control program is identifying and solving common lifter issues. In particular, hydraulic valve lifters have long suffered the notion that they are no good for performance use, but that is far from accurate. Johnson puts a check mark on that fallacy and points to the success of Chevrolet’s ultra high performance COPO […]
Holley’s Billet Remote Oil Filter Mount
Holley Performance Products is pleased to announce all-new Billet Remote Oil Filter Mounts from Earl's. These remote mounts make it a snap to relocate your oil filter to any easy-to-reach location under the hood. Constructed of billet 6061-T6 aluminum and anodized black, they feature dual -10 AN O-ring port inlet and outlets – two on each side – for endless routing options. One of the extra ports can be used to attach a mechanical oil temperature gauge using Earl's adapter part # 981470ERL.
1969 Z/28 Canted Valve 302
An in depth look at a one-off all aluminum canted valve, crossram inducted Chevrolet small block evaluated for the '69 Z/28. A glimpse of something so unique and bad ass for its day...
How to Build Racing Engines: Crankshaft Selection Guide
A high-end racing engine can produce a combustion pressure of about 1,400 to 1,500 psi. For example, if you apply that pressure to a 4.185-inch-diameter...
How to Build Racing Engines: Cylinder Block Guide
Cylinder block selection is primarily application specific and may be limited by racing series rules. Requirements of your specific application may influence your choices based on block material, bore spacing, main cap material and configuration, cam location, and machinability. Selection might be limited to a two-bolt main stock production block or...
How to Build Racing Engines: Startup and Maintenance
Initial engine startup and break-in procedures are vital to the success of every new racing engine. Countless hours of preparation and a substantial amount of money have been invested to build the best possible engine. It is exciting to here a new engine run, but now is not the time to get in a rush. Many things can go wrong at this point...
How To Build Racing Engines: Cylinder Heads
When selecting a cylinder head for a particular application it is important to closely match the desired RPM range based on port dimensions that include port length, cross section, and mid- and high-range flow rates...
565ci Dart BBC Race Build
Our sample engine build is a 565-ci big-block Chevy based around a Dart Big M cylinder block and Dart Big Chief Pro 1 aluminum cylinder heads. Following the step-by-step procedures is designed to simplify the mating of all the important components in the engine...
Racepak IQ3D Drag Logger Dash
Racepak has introduced its new IQ3D Drag Logger Dash. The IQ3D is designed for the sportsman drag racer looking for a compact, all-in-one solution for data logging and instrumentation. It eliminates the need for an external data logger, and features ...
How To Build Racing Engines: Choosing the Right Induction System
Intake manifold characteristics and dimensions exert considerable influence on engine performance with respect to power band shape and positioning on the RPM scale. Race applications deal with three basic manifold types: dual-plane intakes, single-plane intakes, and tunnel ram intakes...
Holley Pro Stock Electronic Fuel Injection Debuts at Winternationals
Anticipation finally crested as the NHRA Pro Stock entries began qualifying for the Circle K NHRA Winternationals on February 12th. Day one was a success as a full field of 16 cars showed up to qualify. All but one car made successful qualifying runs and indications point to some close racing...
Understanding Dynamic Compression Ratio
Your engine actually has two compression ratios, static compression ratio and dynamic compression ratio.
Smokin’ the Speed Demon
George Poteet's Speed Demon streamliner is the fastest piston powered car in the world with Duttweiler horsepower and here's a look at the new wind tunnel test designed to find the perfect ride height and aerodynamic balance for record setting...
Holley Vintage Series SBC Valve Covers and Air Cleaners
Holley Performance Products new Vintage Series air cleaners and small block Chevrolet valve covers are available in as cast, satin black with machined fins, and polished finishes for vintage applications...
PerTronix New Contour Starters
PerTronix new Contour starters combine form and function with a fully enclosed solenoid protecting key components from the elements and damaging heat. These starters look great on street rods and other vehicles where the engine is exposed...
Turbocharged Y-Block for Bonneville
A turbocharged Ford Y-block in a GMC pickup truck seems a rather illogical choice for racing at first glance, but that's the nature of class racing at Bonneville and the El Mirage dry lakes. No other venues offer the broad choice of classes and...
Fabricating a Single Plane Hemi Intake
This is how hot rodders used to build the parts they needed back in the day. Its still happening today as the pioneering old timers and new young guns join forces to build powerful new pieces that other hot rodders can use. That's quite encouraging, not just for Hemi fans, but for hot rodding itself.
Early Hemi Single Plane 4V Intake Test
Legendary racer and engine builder Gene Adams has been one of the most successful navigators of the Hemi's long progression of power. Most Hemi race engines were either supercharged for dragster or Gasser racing or outfitted with dual four barrel carburetors for Super Stock racing...
Dart Reveals New Billet LS Cylinder Head
Dart Machinery has revealed some details of its forthcoming all-new billet LS cylinder head which breaks new ground by coming with full water jacketed cooling. Its the last of the OEM level pushrod style engines that offers grass root enthusiasts...