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Featured Articles

Speed Secrets: Building and Testing a L79 Small Block Chevy

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The specs of the muscle car era engine were pretty standard across the board, but GMs L79 had a legendary reputation. To take a look at what set the L79 apart from the rest, Speed Secrets’ Richard Holdener teamed with Comp Cams to build a reproduction L79. With 4 bolt mains, a forged crankshaft, and 11:1 compression pistons, the main ... Read More »

Speed Secrets: Cam and Nitrous on a Junkyard 4.8! 

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GM’s LS engine has quickly gained a reputation as the ultimate power house and it seems as if everyone is transplanting these engines into everything. While you can buy a well built Crate engine, because of the LS engines potential it can be quite expensive. Lucky for us, GM saw that same potential in the LS engine family and used ... Read More »

Speed Secrets: Camshaft Swapping a Boss 302

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A legendary small block from Ford, the Boss 302 was originally offered only in 1969-1970 Boss 302 Mustangs and the Mercury Cougar Eliminator. In 2007, Ford started offering an engine using the Boss 302 nameplate as a crate engine. Getting your hands on an authentic Boss 302 might be a bit of a task. However, building a replica Boss 302 ... Read More »

Speed Secrets: Getting 500-Horsepower Out of a Small Block Ford

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When thinking of building a high horsepower Small Block Ford, the first modifications that come to mind are Induction system and head flow. While those simple modifications will get you a long ways, there are two key elements that will make hitting your target horsepower rating easier – Displacement and camshaft. One rule in making real power that has never ... Read More »

With a Little Luck: TPI Power Mods

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  Words and Photos by Richard Holdener The phrase, “I’d rather be lucky than good,” comes to mind, but every bit as appropriate is, “Even a blind squirrel finds a nut”. What do we mean by these and what do they have to do with improving the performance of your average Tune-Port Chevy motor? This story began with a simple search ... Read More »

COMP Cams® NSR Drift Cam for GM LS Gen III/IV Applications

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Memphis, TN – COMP Cams® introduces its first ever No Springs Required camshaft specifically designed for GM LS powered drift cars. The NSR Drift Camshaft is designed to provide a significant bolt-in power increase, with some applications gaining over 90 HP.  Along with major gains in power, excellent throttle response is achieved and valve train stability is maintained up to ... Read More »

TCI® Electric Shift Solenoid Kit

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Ashland, MS – For hands-free, automated shifting with its new Outlaw-X™ Shifters, TCI® has developed a shift solenoid kit that helps to produce more consistent ETs.   At the drag strip, the first gear shift comes quickly and requires a faster than normal response time. The TCI® Electric Shift Solenoid Kit works with your RPM switch or timer to make ... Read More »

COMP Cams® .675” Lift Conical Valve Spring Kit for GM LS1/LS3 Engines

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Memphis, TN – The latest valve spring kit from COMP Cams® allows users to easily install revolutionary Conical Valve Springs on any high performance GM LS1/LS3 engine. In the tradition of its successful Beehive™ Spring Kits, the COMP Cams® LS1/LS3 Conical Valve Spring Kits allow enthusiasts and builders to better harness the power of popular LS race and street engine applications. Each kit features ... Read More »

COMP Cams® .675” Lift Conical Valve Spring Kits for GM LT1/LS7 Engines

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Memphis, TN – The latest valve spring kits from COMP Cams® allows users to easily install revolutionary Conical Valve Springs on any high performance GM LT1/LS7 engine. In the tradition of its successful Beehive™ Spring Kits, COMP Cams® LT1/LS7 Conical Valve Spring Kits allow enthusiasts and builders to better harness the power of popular LS race and street engine applications. Each kit features Conical ... Read More »

COMP Cams® .660” Lift Dual Valve Spring Kits for GM LS Applications

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Memphis, TN – COMP Cams® .660” Lift Dual Valve Springs for GM LS applications are now available in complete kits that allow for easy installation on popular LS street/strip applications. With a .660″ maximum lift, these Dual Valve Springs are ideal for any high performance street or race application where aggressive cams are used.  Manufactured from Super Clean™ wire and subject ... Read More »