WINDSHIELDS & FAIRINGS AUDIO, COMMUNICATION & MOUNTS SADDLEBAGS & LUGGAGE SEATS & SISSY BARS FUEL/AIR SYSTEMS EXHAUST TRANSMISSION & DRIVELINE ENGINE GASKETS & SEALS LIGHTING ELECTRICAL HANDLEBARS, CONTROLS & MIRRORS CABLES TANKS & OIL FILTERS BRAKES DASHES & GAUGES FENDERS & LICENSE PLATE FRAMES HARDWARE, COVERS & GENERAL FRAMES & SUSPENSION FOOTRESTS & FLOORBOARDS WHEELS & AXLES dragspecialties.com All part numbers in BLUE are new for the OldBook. SECTION 7 438 See FATBOOK For Late Model Applications DISCLAIMER: *EMIS (EMISSIONS CATEGORIZATION CODE). SEE PAGES 5-7 FOR CATEGORY CODES, IMPORTANT EPA/CARB EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND NOTICE REGARDING NOISE REGULATIONS. PRODUCTS NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES IF NOT CATEGORIZED AS “1” OR “4”. ANDREWS CAMS BIG TWIN (CONT) GRIND OPEN CLOSE DURATION @ 0.053” VALVE LIFT A2 Intake 19” 43” 242° 0.450” Exhaust 50” 18” 242° 0.450” AB Intake 21” 50” 244° 0.450” Exhaust 43” 26” 256° 0.450” B2 Intake 26” 50” 256° 0.485” Exhaust 53” 25” 258° 0.485” BH Intake 24” 52” 256° 0.450” Exhaust 52” 24” 256° 0.450” GRIND OPEN CLOSE DURATION @ 0.053” VALVE LIFT C Intake 37” 61” 278° 0.525” Exhaust 61” 37” 278° 0.525” J Intake 21” 41” 242° 0.405” Exhaust 41” 21” 242° 0.405” N Intake 13” 44” 234° 0.348 Exhaust 47” 16” 240° 0.348” S Intake 27” 55” 262° 0.370” Exhaust 55” 27” 262° 0.370” GRIND OPEN CLOSE DURATION @ 0.053” VALVE LIFT 7 Intake 29” 53” 268° 0.510” Exhaust 56” 27” 268° 0.510” Andrews “#1” Intake 16” 36” 232° 0.427” Exhaust 36” 16” 232° 0.427” Andrews “#2” Intake 15” 35” 230° 0.490” Exhaust 35” 15” 230° 0.490” PART # DESCRIPTION EMIS* #1 GRIND CAMS FOR LOW-COMPRESSION DS-199324 For L77-84 Shovelhead 3 DS-199282 For 70-E77 Shovelhead 3 PART # DESCRIPTION EMIS* #1 GRIND CAMS FOR LOW-COMPRESSION (CONT) DS-199283 For 48-69 Big Twin N/A PART # DESCRIPTION EMIS* #2 GRIND CAMS FOR LOW-COMPRESSION DS-199326 For L77-84 Shovelhead 3 DS-199325 For 70-E77 Shovelhead 3 PART # DESCRIPTION EMIS* 0925-0299 For L77-84 Shovelhead 3 PART # DESCRIPTION EMIS* 0925-0298 For 70-E77 Shovelhead 3 PART # DESCRIPTION EMIS* 0925-0293 For L77-84 Shovelhead (except 80-81 models) 3 0925-0292 For 70-E77 Shovelhead 3 0925-0291 For 48-69 Big Twin N/A PART # DESCRIPTION EMIS* DS-199328 For L77-84 Shovelhead (except for 80-81) 3 DS-199347 For 70-E77 Shovelhead 3 DS-199317 For 48-69 Big Twin N/A PART # DESCRIPTION EMIS* 0925-0296 For L77-84 Shovelhead 3 0925-0295 For 70-E77 Shovelhead 3 0925-0294 For 48-69 Big Twin N/A PART # DESCRIPTION EMIS* DS-199299 For L77-84 Shovelhead 3 DS-199298 For 70-E77 Shovelhead 3 DS-199297 For 48-69 Big Twin N/A PART # DESCRIPTION EMIS* DS-199314 For L77-84 Shovelhead 3 DS-199313 For 70-E77 Shovelhead 3 0925-0583 For 48-69 Big Twin N/A PART # DESCRIPTION EMIS* DS-199303 For L77-84 Shovelhead 3 DS-199302 For 70-E77 Shovelhead 3 DS-199301 For 48-69 Big Twin N/A PART # DESCRIPTION 0925-0584 For 37-47 Knucklehead PART # DESCRIPTION 0925-0585 For 37-47 Knucklehead “A2” GRIND CAMS •Cams bolt into 66-84 (except 80-81) Big Twin engines with no head work; on 80-81 engines the height of the stock H-D valve guides restricts spring travel (and cam lift) to 0.430” or less •More mid-range and high-end power; idle unaffected •Spring travel and clearance, plus clearance at main bearing boss must be checked on 80 and later models “AB” GRIND CAMS •Bolt-in street cams have an “A” intake and a long duration exhaust for cooler running and high-end power •Suitable for hydraulic lifters “B2” GRIND CAMS •More mid-range and high-end power for street/strip with smooth idle; best cam for 74/80 inchers and small strokers •Spring spacing required, and clearance at main bearing boss must be checked “BH” GRIND CAMS •A hydraulic version of Andrews “B” grind cams, for 48-84 Big Twin •Most are bolt-in, but spring spacing may be required “C” GRIND CAMS •Best production cam made for big street engines •Strokers from 84 to 96 inches will really turn on this cam •Broad torque range from 2000 to 7000+ rpm “J” GRIND CAMS •For mild street applications •Add more power throughout rpm range and maintain a smooth idle •Bolt-in with no head work “N” GRIND CAM •Stock Knuckle replacement cam •For stock motors and restoring an older classic engine, this is the cam to use •Made in the U.S.A. “S” GRIND CAM •Bolt-in performance cam •Smooth idle, strong pull to 6000 rpm •This cam is the Knuckle equivalent of a “B” cam in a Pan/Shovel motor •Made in the U.S.A. “7” GRIND CAMS •Upgraded version of the original #6 Grind •Great street cam, especially for 84/88-inch strokers with maximum torque from 2200 to 6500 rpm #1 AND #2 GRIND CAMS FOR LOW-COMPRESSION 66-84 BIG TWIN •Designed with a combination of shorter durations and higher lifts to offer the advantages of a broad torque output through the entire rpm range •Designed for hydraulics, but could be run with solids •#1 Grind is the low-compression version of an “A” grind cam for 74” and 80” models •#2 Grind offers more power through the rpm range for engines with low-compression pistons; the low-compression sister to a “B” grind cam •Made in the U.S.A. NOTE: On late 77 and later engines, the pitch diameter on the camshaft, pinion gear and breather valve gear was changed. These components are not interchangeable with earlier style components unless replaced in sets only. Late 77 and later gear sets are identified by a circular groove machined in the outer face of the cam gear.
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