Page 4 of Northern Tool & Specialty Catalog by Northern Auto Parts

GM Restoration Parts 4 Some items may not be legal for sale or use in California or on any pollution controlled vehicle. 27-2401-51955 Air Cleaners These air cleaner kits are offered in two styles, the classic, which reflects many years of GM air cleaner styling, and the newer high-peformance look. They are equipped with the CHEVROLET Trademark, and they are supplied with genuine GM (AC) air filter elements for maximum airflow. Both the tops and the bases are chrome plated to exacting standards for long-lasting appearance, and each kit is supplied with necessary mounting hardware. The classic air cleaner kits are supplied with special die-cast Bowtie center nuts (also offered separately). The 14" air cleaner kits are supplied with 3" tall filter GM P/N 6421746 (AC P/N A212CW). For buyers wishing a taller (4-1/32") filter, purchase GM P/N 8997189 (AC P/N A697C). This filter is available with a black foam rubber outer wrap as GM P/N 8996118 (AC P/N A644C). The bases of the 14" air cleaner kits are recessed for a low profile appearance, maximum performance and hood clearance. Technical Note: After installing a new air cleaner kit, always lower the hood slowly to confirm sufficient clearance visually. Minimum clearance of 3-3/4" is required from the top of the carburetor gasket area to the underside of the hood. 141-302 14" Classic w/Bowtie Center Nut . . .$61.54 141-307 14" High-Performance . . . . . . . . . .$54.49 141-906 14" Classic with red Bowtie Emblem and black CHEVROLET lettering . . .$72.42 . . . . . . . . . . . . . Black crinkle air cleaner kits, similar to 141-302, offer a distinctive look and boldly striking Bowtie and CHEVROLET Emblems, inlaid with classic Chevrolet red. They handsomely complement black crinkle die-cast or stamped valve covers. 141-752 14" Classic, Black Crinkle . . . . . . .$68.27 The 10" air cleaner kits are supplied with a 2-53/64"-tall filter GM P/N 25040929 (AC P/N A773C). Taller filter (3-17/32") GM P/N 6419892 (AC P/N A178CW) is also available. 141-309 10" Classic w/Bowtie Center Nut . . .$48.37 141-315 10" High-Performance . . . . . . . . . .$41.16 141-690 14" Black Aluminum, no logo . . . . .$57.02 141-691 14" Clear Anodized Aluminum, no logo$57.02 SAVE over 2 lbs! Sturdy carbon fiber air cleaner kit, manufactured with a genuine carbon fiber top and a lightweight aluminum base, and sporting a large inlaid Bowtie Emblem. The ultimate in race day appearance with front-end weight savings! Deeply recessed base for maximum hood clearance and tall filter usage. 141-790 Chevy 14" Classic, Carbon-Fiber, Air Cleaner Kit . . . . . . . . . . . . . . .$150.93 Valve Cover Wing Nuts Chevrolet Bowtie Emblem is cut sharply into the top of each wing nut. The lower ends of the shafts are manufactured with wide shoulders for broad load distribution, and each wing nut is supplied with a separate stud which permits precise gasket positioning on the head prior to mounting the valve covers. Fits Chevrolet small and big block, and V6. 1/4" x 20 threads. 4 per package. 141-600 Wing Nuts, Chrome . . . . . . . . . . .$18.65 141-756 Wing Nuts, Black Crinkle . . . . . . . .$19.23 141-364 Wing Nuts, High-Tech Gray . . . . . .$19.23 141-902 Wing Nuts, Chrome, Red Bowtie . .$21.57 141-692 14" Black Aluminum, Bowtie and Chevrolet logo . . . . . . .$76.14 141-693 14" Clear Anodized Aluminum, Bowtie and Chevrolet logo . . .$76.14 Be the first to own this HOT new look! Reinforced lightweight composite-fiber air cleaner kit comes with the deeply recessed aluminum base, genuine AC filter, and the popular Bowtie Emblem. Looks great with a set of the clear anodized fabricated aluminum valve covers on page 2! 141-793 Chevy 14" Classic, Lightweight Composite-Fiber, Air Cleaner Kit . .$133.93 Air Cleaner Nuts Available with the distinctive GM and Chevrolet Bowtie Trademarks, these chrome plated zinc die-cast air cleaner center nuts are offered in two popular styles, in both large and small sizes. The large size is recommended for 14" and 10" air cleaner kits, and the small for 6-3/4" and 4-7/16" air cleaner kits. They fit both 1/4"-20 and 5/16"-18 studs. 141-333 Bowtie, Large . . . . . . . . . . . . . . .$10.00 141-322 Bowtie, Small . . . . . . . . . . . . . . . .$8.94 141-323 Hi-Tech Bowtie, Large . . . . . . . . . .$10.00 141-328 Hi-Tech Bowtie, Small . . . . . . . . . .$8.94 141-327 Hi-Tech GM, Large . . . . . . . . . . . .$10.00 141-332 Hi-Tech GM, Small . . . . . . . . . . . . . .8.94 Super-Light 14" Air Cleaners SAVE critical front-end pounds! PROFORM offers you a choice of six race-winning combinations: air cleaner lids ranging from genuine carbon fiber to aircraft aluminum, with or without the famous Bowtie and CHEVROLET Emblems, in black or clearanodized anodized finishes; plus a 3" tall genuine AC filter (AC P/N A697C); plus a color-matched, super-deep aluminum base for maximum hood clearance when using optional, extra-tall air filter elements. These weight-saving high-performance air cleaner kits blend traditional OEM appearance profiles with optimized air-flow dynamics to achieve checkered-flag results. Supplied with necessary mounting hardware and center nuts as shown.

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