Why You Want ARP Bolts for Your Engine
663hp 434ci Small-Block Street Engine
Fifty Years with Valley Head Service
Factory Fuel Injected 409?
ARP Rod Bolt Stretch Gauge How-to
PipeMax Creator Larry Meaux on Race Engine Head Porting
Why You Want ARP Bolts for Your Engine

Why You Want ARP Bolts for Your Engine

1
663hp 434ci Small-Block Street Engine

663hp 434ci Small-Block Street Engine

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Fifty Years with Valley Head Service

Fifty Years with Valley Head Service

3
Factory Fuel Injected 409?

Factory Fuel Injected 409?

4
ARP Rod Bolt Stretch Gauge How-to

ARP Rod Bolt Stretch Gauge How-to

5
PipeMax Creator Larry Meaux on Race Engine Head Porting

PipeMax Creator Larry Meaux on Race Engine Head Porting

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News & Reviews

  • The Crew Chief’s Son The Crew Chief’s Son
    From 1957 through 1965 car owner and racing mechanic Louie Clements traveled NASCAR's emerging Grand National stock car racing series and he brought his entire family, wife and five kids along for the ride. Now Michael Clements brings those days alive with...
    Read More ...
  • 663hp 434ci Small-Block Street Engine 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 crafted this 434ci beast to the tune of 663hp and 590 lb-ft of tire shredding torque.
    Read More ...
  • Fifty Years with Valley Head Service Fifty Years with Valley Head Service
    Fifty years ago this month Larry Ofria began porting cylinder heads in a run-down old chicken coup at the family property on Sherman Way in Reseda, California. Larry and the engine savvy crew at Valley Head Service are recognized far and wide for their contributions to the advancement of high performance engine...
    Read More ...
  • Why You Want ARP Bolts for Your Engine Why You Want ARP Bolts for Your Engine
    ARP is the first thing you think of when you need fasteners for your race engine. Need some head bolts? Call ARP. Need a complete fastener kit? Call ARP...
    Read More ...
  • Holley Introduces Vent Tube Spill Reduction Valves Holley Introduces Vent Tube Spill Reduction Valves
    Holley's new Vent Tube Spill Reduction Valves feature an internal valve ball that reduces fuel spillage from carburetor vent tubes in crash situations and reduces fuel slosh from vent tubes during hard launches/stops or while traversing rough terrain in...
    Read More ...
  • Lunati Bootlegger Cams Lunati Bootlegger Cams
    The most powerful series of street performance cams ever produced by the Lunati design team. They build on the popular Voodoo® Series, but feature even faster opening rates, a controlled closing and far more area under the lift curve.
    Read More ...

Top Tech Tips

  • Engine Building Rules Part 1: Planning 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 insufficient research and planning can steer an engine project down the wrong path right from the beginning. The first mistake is...
    Read More ...
  • Effects Of Changes in Cam Timing and Lobe Separation Angle 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. Engine builders can refer to these characteristics often to determine the likely effect of any cam timing alterations they may contemplate...
    Read More ...
  • Camshaft Basics Camshaft Basics
    Pushrod based engines use two basic types of camshaft; either flat tappet or roller tappet. It’s a little more complicated than that, but it basically comes down to the type of lifter. Up until the mid-eighties most production engines used flat tappet lifters with a crowned face that rides directly on the camshaft lobe...
    Read More ...
  • Calculating 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 evaluating engine potential and it is even more instructive if you calculate maximum piston speed since one of the axioms of engine performance dictates that power comes from engine speed...
    Read More ...
  • Porting Pointers Porting Pointers
    The objective of porting a cylinder head is to improve engine performance via constructive enhancements to the intake and exhaust flow paths. Before you get to this point however, it's important to determine the rpm range of the desired power band and how you want to shape and position the torque curve...
    Read More ...
  • Tuning Tips for Intake Manifold Deficiencies Tuning Tips for Intake Manifold Deficiencies
    Various modifications and adjustments can be applied to intake manifolds to fine tune them for specific performance requirements. Today we wanted to share an inside Tech Tip with you taken from the new CarTech book, Competition Engine Building: Advanced Engine Design and Assembly Techniques...
    Read More ...
SEMA Action Network – Zone 3 and 3b
Mitech Racing Zone 3b – FP (275x 250)

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