Designed from a clean slate approach the LS Next Aluminum block has addressed the shortcomings of the LS platform and is the ideal candidate for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts. By utilizing…
Dart Machinery (also known as Dart Heads) is pleased to announce the purchase of a new 82,000 square foot industrial complex in Warren, Michigan. This new complex will combine the current headquarters in Troy, Michigan and the manufacturing center in…
Turn up the volume, press the play button, and listen to 440 cubic inches of Dart LS power! This is a 440 cube LS using our LSNext iron block and the PRO1 LS heads on top. Compression checked in at 11:1,…
No other areas of racing engine development holds as much potential for increased performance as cylinder head selection and preparation. Dart continues its revolutionary approach to perfection and power in this area by the release of the all new LS3 based Dart PRO1 280cc cylinder head.…
A 2013-’14 engine building project featuring a 700-hp package based on a Dart LS Next block and CNC machined Pro1 aluminum cylinder heads is now available on eBay, with all proceeds going to the SEMA Memorial Scholarship fund.
Cylinder head suppliers, many of them copiers, are fighting over you. Copies are almost always cheaper, but the originals are constantly evolving—always on the cutting edge while the copies have to wait.
The new 5-liter engine block, the Little M 305! Produced in premium cast iron and created as a replacement for GM’s 305 small-block, the Little M 305 engine block has a Brinell hardness rating of 220. By using the same…
Get some insight into the tolerances and specifications Dart blocks and heads are held to and what that means for the final product.
In this Dart University segment Kevin Byrd goes over two excellent ways to check your piston to valve clearance while building or rebuilding an engine.
Kevin Byrd shows us a great way to find an accurate TDC and how to set timing correctly on your cam.
Dart heads and blocks are stamped or cast with various numbers that can tell you quite a bit about the part. Knowing how to read and interpret these markings can save a lot of time and hassle when you need…
Kevin Byrd goes over the ins and outs of valve lash adjustment.
Kevin Byrd, of Two Guys Garage, explains the proper technique for installing head studs and offers a few useful tips to avoid damaging your block.
Dart president Richard Maskin offers an informative and in depth look at the techniques for getting the perfect hone.
Richard Maskin discusses some of the theory behind high performance valvetrain optimization.
Learn about the advanced oiling systems in Dart blocks and get some pointers for working with them, hosted by Kevin Byrd.
Kevin Byrd goes over the basics of valvetrain geometry.
Kevin Byrd from Two Guys Garage discusses the importance of valvetrain stabilizers and demonstrates some techniques for proper installation.
In this session of Dart University, Kevin Byrd explains what you need to do to get your engine block fully prepped for assembly.
Ductile iron is a form of cast iron which has improved strain resistance due to the spherical shape of the graphite particles in the alloy. Because of this ductile iron is an ideal material for applications that require high stress…
Metal casting is a manufacturing process where metal is heated to a liquid form and poured into a hollow mold. The metal is allowed to solidify and the resultant casting is removed from the mold.
In a priority main oiling system, the oil from the engines primary oil galley is supplied first to the main bearings and then to the cam, lifters and top end. This ensures that the critical crankshaft main bearings receive adequate lubrication for highly stressed racing applications.
When specifying aluminum alloys, there are usually two important numbers used. As an example, C355-T61 is the alloy Dart uses for all of our cast aluminum blocks and cylinder heads. The C355 number refers to the specific elements contained in the alloy, and the T61 refers to the heat treatment used to condition the metal after it is cast to shape.
6061 is an aluminum alloy containing elements of silicon and magnesium, and is typically supplied in billet rather than cast form. The alloy has excellent mechanical properties that make it highly suitable for a wide range of high strength manufacturing applications, from automotive parts to aircraft components.
Computer Numerical Control machining, commonly called CNC, means that all of the actions of the machining center are controlled by a computer program rather than directly by the human operator.
The Platinum version of the Dart’s popular Iron Eagle and PRO 1 heads are the direct descendants of Dart’s Pro Stock engine program. wet-flow technology and improved combustion efficiency propelled the project.
Wet flow testing allows a cylinder head designer to look at how the air/fuel mixture behaves when routed through a head and into the combustion chamber. The air/fuel mixture is much heavier and behaves very differently than dry air, so managing the mixture efficiently gives much better results than just increasing air flow will.
The term “billet” generally refers to components which are machined from a drawn or forged blank of aluminum, usually 6061 alloy, rather than a cast shape. Billet aluminum differs from cast aluminum both in alloy and grain structure.
Dart’s Iron Eagle Platinum small block cylinder heads with 49cc combustion chambers are very popular among oval track racers competing in classes that require flat top pistons, but what pistons to use?
With Dart’s vastly improved oiling system, the need to “band-aid” the oiling system with a high volume oil pump is a thing of the past. Using a standard oil pump and today’s lifters, without restrictors, makes engine assembly easier and eliminates the guess work of determining restrictor size.
Dart’s Molybdenum Disulfide based coatings, such as the DC-4 lubricating coating often used on camshafts, are an excellent way to increase load capacity and improve durability… but you need to be selective about the type of break-in oil used on an engine that employs these coatings.
One of the great features of the Dart Special High Performance (SHP) small-block is its provisions to use OEM hydraulic roller lifters.