No other areas of racing engine development hold as much potential for increased performance as the cylinder head and its related components. Dart continues its revolutionary approach to perfection and power in this area by the recent release of their all new NMCA Pro Stock cylinder head.

Race Series LS 10 ° 368cc CNC Features:

• RMR cast aluminum alloy

• High owing 368cc CNC oval ports

• 10 ° x 4 ° canted valves with reverse intake and exhaust location

• Machined with 2.300” x 1.600” valve job

• Copper valve seat material

• 6 bolt per cylinder capability

• Dual exhaust bolt pattern

• Optional 38cc – 57cc CNC combustion chamber

Call Dart’ s technical sales team today for more information and a dealer near you at 248-362-1188. Visit Dartheads. com and follow Dart Machinery on Facebook for all the latest product news.

QA1 is proud to release upper and lower control arms for 1969-1972 Grand Prix, 1970-1972 Monte Carlos and 1975-1979 GM X-body vehicles like Novas, Chevy IIs, Venturas, Apollos and Omegas.

QA1’ s GM control arms are offered in both street and race configurations. The street arms use factory replacement ball joints and polyurethane pivot bushings and work great on vehicles used primarily for cruising and long distance events. The race arms utilize low friction QA1 Ball Joints and low friction, low deflection UHMW polyethylene pivot bushings, providing the added performance needed for drag racing, pro-touring and hard core street applications. Both the upper and lower control arms work with stock or dropped spindles and feature tubular construction and a durable black powder coated design.

These control arms are designed to work with QA1’ s front Pro Coil Systems. A bolt-in spring adapter is available separately to allow the control arms to be used with stock springs. The upper arms feature an offset cross shaft, letting you quickly and easily adjust camber. The upper and lower arms are designed to add 3 to 4 degrees of caster and 0.5 to 1 degree of negative camber when used together to get the most out of modern performance tires. All lower control arms include mounting hardware for easy bolt-on installation.

QA1’ s full-vehicle handling and drag racing suspension kits have also been updated to include these new control arms. All QA1 tubular suspension components, aluminum shocks and steel struts are made in their Lakeville, Minnesota facility.

For additional information and a free catalog, call 800.721.7761 or visit QA1’ s website at www. QA1. net.

62 | Drag Illustrated | DragIllustrated. com Issue 115