News & Reviews

Understanding the Rod Length and Pin Height Connection

The relationship between connecting rod length, piston compression height and compression ratio is often misunderstood, largely…

Goldenrod Cockpit View Art Print

December 25, 2018
This 24 x 36-inch Art Quality print shows the cockpit view of the goldenrod on the International FIA course at Bonneville...

Goldenrod Limited Edition Numbered Blueprint Poster

December 24, 2018
This 24 x 36-inch Art Quality print of the Goldenrod and it's main blueprints is...

Goldenrod

December 23, 2018
This acclaimed work has been praised far and wide as the best book ever written about Bonneville racing and the World's Land Speed…
arias LSX hemi engine

Beast Mode: 2000 HP LSX Based Arias Hemi

A 427 cubic inch turbocharged LSX based Bonneville engine with super trick Arias Hemi Heads pushing 2000 horsepower is truly a beast…
hemi inlet stucks

Hardcore Hemi Attacks the Engine Masters Challenge

The Adams and Smithberg team injected Hemi entry at the 2017 Engine Masters Challenge displayed one of the most unique active-tuning…
direct injection Corvette engine

Direct Injection Piston Damage? Check Your Oil

Low Speed Pre-Ignition or LSPI is a previously unrecognized combustion anomaly that leads to severe engine damage on late model…
Merlin IV big block

All New Merlin IV Big Block Chevy

World Products has completely redesigned the famed Merlin Big Block Chevy casting, incorporating numerous improvements and new features…
Holley Dominator

Holley Releases 1050 CFM Gen 3 Marine Dominator Carbs

Holley/MSD is pleased to announce the release of Holley 1050 CFM Gen 3 Marine Dominator Carburetors, which exceed performance demands…
bloe box

Blue Box Digital Manometer Revolutionizes Air Flow Testing

November 5, 2017
Upgrading to a precision digital manometer to streamline your air flow testing efficiency, is a snap with “The Blue Box” from…
race pistons

Are Your Pistons Round?

A piston’s operating environment strongly influences its overall shape and that form becomes complex when the piston is asked…

Factory 409 Fuel Injection: No Really!

In a bid to improve power and economy, GM engineering staff undertook extensive research on fuel injection options for W-motored…

Featured Story

Exclusive! Inside the Speed Demon's Blown Fuel Streamliner Engine
 George Poteet's new Speed Demon streamliner knocks off another speed record with turbocharged LS Power

Engine Builds

hemi inlet stucks

Hardcore Hemi Attacks the Engine Masters Challenge

The Adams and Smithberg team injected Hemi entry at the 2017 Engine Masters Challenge displayed one of the most unique active-tuning…
speed demon

Speed Demon’s A/Blown Fuel Streamliner Motor

Engine builder Kenny Duttweiler's thoughtful approach to torque-managed small block LS power and rear wheel drive may soon deliver…
blown small block Chevy

1290 HP, 421ci Small Block Chevy Build

Sportsman racers have pretty much gone big league thanks to a broad performance market that offers a remarkable variety of supercharging…
pro street

Boosting a 482ci Ford SOHC Cammer

When exotic excess isn't quite enough to satisfy the power demons lurking within, artificial aspiration frequently brings the heavy…

383 Chevy: Beyond the Crate!

Is the 383 Chevy the Most Popular Small Block Ever? That's easy to believe based on the number of rotating assemblies sold by Scat…

A 735hp 438ci Small-Block Ford Bullet

This 438ci 735 HP Ford drag racing engine represents Hardcore Horsepower's unconventional, but forward-thinking effort to create…
cob ra jet

Building the 750 HP Ford Cobra Jet

Ever wonder how carefully your Cobra Jet drag racing engine gets assembled at the factory? No doubt you've seen old newsreels with…

663hp 434ci Small-Block Street Engine

When tasked to build a 650hp+ street engine with lots of restrictions, Mike Petralia's Hardcore Horsepower, LLC in Franklin, TN…

Blown Hi-Torque E85 Chevy Small Block

The key to power for this 628 HP 383ci blown street small block was the 177-cid Roots-style Weiand supercharger combined with E85…

383 Beyond the Crate LT1 Parts List

The following parts for the Beyond the Crate 383 project are all available through Summit Racing except where noted. These are the…
565 cubic inch BBC

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…

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…

Tech Tips

compression ratio

Understanding Dynamic Compression Ratio

Your engine actually has two compression ratios, static compression ratio and dynamic compression ratio.
arp bolts

ARP’s Secret Fastener Technology Lab

ARP's test lab has quantified the potential for a 20% or more loss in clamping force with used nuts...
RTS PD Valve

RTST Ported Flow Testing Valves

The RTS kit permits precise mapping of the airflow values around the circumference of the valve at any lift value. It helps identify…
Engine Builing

Engine Building Rules Part 1: Planning

Consider a typical performance engine build plan that holds true for many budget based bracket racing builds and illustrates how…
Cam Lobe Profile diagram

Effects Of Changes in Cam Timing and Lobe Separation Angle

The following tables provided by COMP Cams illustrate how variations in lobe separation angle and cam timing affect engine behavior.…

Camshaft Basics

Pushrod based engines use two basic types of camshaft; either flat tappet or roller tappet. It’s a little more complicated than…
Piston Speed

Calculating Piston Speed

Mean piston speed has long been used as an indicator of component durability under severe service. It is a good rule of thumb for…

Porting Pointers

The objective of porting a cylinder head is to improve engine performance via constructive enhancements to the intake and exhaust…

Tuning Tips for Intake Manifold Deficiencies

July 28, 2012
Various modifications and adjustments can be applied to intake manifolds to fine tune them for specific performance requirements.…

How to Use a Dial Indicator

June 5, 2012
Dial indicators are one of the primary measuring tools used in precision engine building. They are typically used to measure deck…
deck bridge

How to Use a Deck Bridge

May 17, 2012
A deck bridge is a basic comparator tool that allows you to easily read dimensional differences between adjacent surfaces like the…

Priority Main Oiling

May 13, 2012
Most OEM and aftermarket race cylinder blocks are configured for priority main oiling to protect the main bearings at high RPM.…