Dart Iron Blocks
After years of producing the best, and for a while the only, cast-iron replacement performance cylinder heads, Dart Manufacturing has crossed over into the iron block market. Dart's iron big- and small-block Chevys are available in several configurations designed for both street and racing. The big-block shown here is the four-bolt billet steel main cap version. This block can be punched out from 4.250 to 4.500-inches and will accept up to a 4.75-inch stroke. Available in either a standard 9.8-inch or tall 10.2-inch deck height, Dart recommends a maximum 632-cid displacement for its new big-blocks. This race-prepped block also has been milled in non-critical areas to save weight. Additionally, all Dart blocks feature a mechanical fuel pump boss for street use. Information: Dart Machinery, 353 Oliver St., Dept. SC, Troy, MI 48084, (248) 362-1188.
Lencodrive
Long looked towards as the standard in racing manual/clutch transmissions, Lenco has moved into the automatic market-sort of. The new Lencodrive racing automatic combines the best of all of Lenco's proven racing components into a 2-, 3-, or, 4-speed automatic transmission that uses a standard torque converter. This new Lenco can be shifted manually, by air, or even electronically. It can also handle 2,500hp without a second thought. There is a wide array of gear ratios available for it, and it's actually pretty lightweight when compared to factory automatics. Information: Lenco Racing Transmissions, 6470 Federal Blvd., Dept. SC, Lemon Groove, CA 91945, (800) 854-2944.
Wilson Pro Flow
Until now, Wilson Manifolds was most widely known for fabricating some serious race-winning sheetmetal intake manifolds. Wilson has taken the next step in perfecting its induction components with the advent of its new Pro-Flow nitrous systems. Wilson's nitrous systems take a new approach on both the tried and true nitrous plate and fogger system designs. The Wilson plate systems were engineered to cure the "corner lean out" condition so common with plate nitrous systems. The solution is what Wilson has dubbed "Fan Spray Tube Technology" and eliminates the problem once and for all, according to Wilson's nitrous engineers. One other distinctly unique and beneficial feature of the Pro-Flow nitrous plate is its patented burst panels. These replaceable panels are your engine's safety valve and will blow out if a violent backfire occurs, saving your expensive carburetor and intake manifold from destruction. Information: Wilson Manifolds, 4700 N.E. 11th Ave., Dept. SC, Ft. Lauderdale, FL 33334, (954) 771-6216.
Trick Carb Hardware
PRP has worked with top NHRA Pro Stock competitors to engineer a four-hole Dominator carb spacer incorporating a 7-degree taper and Shear Plate design. The bore taper is designed to build low pressure under the throttle plates and increase the signal to the venturi booster while the machined ring around the circumference of each bore is designed to prevent "reversion," a phenomena where the intake charge reverses direction and tries to head back up the intake tract. This problem is common in race engines built with long-duration, high-overlap camshafts. Information: Philadelphia Racing Products, 268 Geiger Rd., Dept. SC, Philadelphia, PA 19115, (215) 969-3550.
Granatelli Maf
Cold air in large quantities makes for lots of horsepower. Granatelli Motorsports (GMS) wants to do all it can to help your late-model engine ingest more of that great cold air. GMS offers two new cold air intake kits and these calibrated Mass Airflow Sensors to go along with them. The MAF on the left converts a '97-00 LS1 Corvette to Z06 specs with the addition of the GMS cold air kit. Power was boosted by 26hp and 23 ft-lbs of torque with these simple emissions-legal add-ons. The MAF on the right is for '96-00 trucks. There are actually two different units for the trucks, one for the '96-00 Vortec 5.0 and 5.7L V-8s and one for the new 4.7, 5.3, and 6.0L '99-00 pickups. Power gains were notable after installing these simple components and combining them with GMS's cold air intake kit. Information: Granatelli Motor Sports, 18551 Topham St., Suite H, Dept. SC, Reseda, CA 91335, (818) 996-2753.
Secure Your CableWe found some really trick carb products at the Philadelphia Racing Products (PRP) booth, both of which are a new approach to an old idea. PRP's Multi-adjustable Billet Aluminum throttle bracket makes connecting your GM, Lokar, or Morse cable to any Holley 4150 or 4500 Dominator easy. The bracket includes a secure cable mount on the back and a dual throttle return spring set-up in front. The cable bracket is adjustable to work with different length cables, and the return spring bracket is adjustable to increase or decrease spring tension. Information: Philadelphia Racing Products, 268 Geiger Rd., Dept. SC, Philadelphia, PA 19115, (215) 969-3550.