PRI 2016: Dart NMCA Junior Pro Stock LS Block

IMG_5910At the end of the 2016 NMCA season the Junior Pro Stock spilled onto the drag racing scene, and it’s scheduled for a full season of 2017 shootouts. For those unfamiliar with this new class; “This will be a bad ass, heads-up small block class that basically is anything you feel like putting together as long as it’s kept at a minimum 2,300 pounds and 401 cubic inches or smaller with no RPM limit,” announced Bob Book (one of the creators of the class) in a press release.

IMG_5907These naturally aspirated engines can be of any combination of GM, Ford or Chrysler powerplants and bodies, so LS-powered Mustangs, and Ford-Powered Camaros can irritate and subvert the brand loyalties of everyone within earshot of the track.

We stopped by Dart to see one of the first new offerings to accommodate the GM side of engines, Tony Mcafee explained; “This is pretty much the LS Next block, other than it’s an 8.800 deck height. Not only is it an 1.062-inch lifter, it’s got a .950-inch diameter wheel on it which smooths the cam profile out tremendously.”IMG_5905

This display engine featured a mix of parts to illustrate the different configurations it could be setup to run with. “One side of this engine it’s 400 ci Pro Stock, the other side is economy 400 ci Pro Stock, and these parts are top Sportsman 400, so this block will work in all three classes,” Mcafee explained.

“There’s lots of little things that we take for granted being in the racing industry. This is the first version of the 400 cubic inch stuff.IMG_5898

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About the author

Trevor Anderson

Trevor Anderson comes from an eclectic background of technical and creative disciplines. His first racing love can be found in the deserts of Baja California. In 2012 he won the SCORE Baja 1000 driving solo from Ensenada to La Paz in an aircooled VW. Trevor is engaged with hands-on skill sets such as fabrication and engine building, but also the theoretical discussion of design and technology. Trevor has a private pilot's license and is pursuing an MFA in fine art - specifically researching the aesthetics of machines, high performance materials and their social importance to enthusiast culture.
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