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 SECTION 7 All part numbers in BLUE are new for 2026. 617 See OLDBOOK For Early 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”. GRIND VALVE LIFT OPEN CLOSE DURATION @ 0.053” LIFT @ TDC LOBE CENTERLINE 405 Intake 0.395” 4° 24° 200° 0.068” 103° Exhaust 0.405” 36° 11° 205° 0.049” 108° 465 Intake 0.445” 4° 23° 207° 0.100” 99.5° Exhaust 0.465” 50° 6° 236° 0.100” 112° 472 Intake 0.468” 8° 25° 213° 0.117” 98.5° Exhaust 0.472” 50.7° 7.75° 238° 0.110” 111.5° 487 Intake 0.478” 20.5° 37° 237° 0.180” 98.5° Exhaust 0.487” 44° 17.5° 241.5° 0.146” 103.25° 508 Intake 0.508” 20.5° 37° 237° 0.180” 98.5° Exhaust 0.511” 44° 17.5° 241.5° 0.146” 103.25° 521 Intake 0.518” 17° 34° 231° 0.162” 98.5° Exhaust 0.521” 51.5° 11.5° 243° 0.125” 110° 538 Intake 0.538” 20.5° 38.5° 239° 0.180” 99° Exhaust 0.542” 48° 18° 246° 0.157” 105° 592 Intake 0.578” 20° 34° 234° 0.182” 97° Exhaust 0.592” 68° 16° 264° 0.146” 116° 618 F Intake 0.608” 20° 42° 242° 0.195” 101° Exhaust 0.618” 65° 19° 264° 0.170” 113° CAM SPECS MEASURED IN THE ENGINE ON THE LIFTER @ 0.050” USING A 1.61 ROCKER ARM RATIO PART # DESCRIPTION EMIS* FOR 17-25 M-EIGHT (EXCEPT 121” VVT MOTORS) 0925-1210 521 chain drive cam 3 PART # DESCRIPTION EMIS* FOR 17-25 M-EIGHT (EXCEPT 121” VVT MOTORS) 0925-1265 592 chain drive cam 3 PART # DESCRIPTION EMIS* FOR 17-25 M-EIGHT (EXCEPT 121” VVT MOTORS) 0925-1372 538 chain drive cam 3 PART # DESCRIPTION EMIS* FOR 17-25 M-EIGHT (EXCEPT 121” VVT MOTORS) 0925-1608 618 F chain drive cam 3 REAPER® CAMS FOR M-EIGHT (CONT) 521 CAM •Aggressive pulling power with a “nasty” sound, the Reaper® 521 grind will shine in 114” and larger cubic inch engines with added compression ratio •Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range •Stock throttle body produces an excellent powerband; use of a high-flow throttle body may increase peak power numbers •A high-flow exhaust system and air cleaner is highly recommended for optimal performance •Feuling® recommends matching 521 cam with Race Series® oiling system PART #0932-0199 •Requires high lift valve springs; see PART #s 0926-2973 or 0926-2974 on page 585 •Heavy-duty one-piece pushrods are also highly recommended; see PART #0928-0091 on page 594 •2250 to 6250 rpm range 538 CAM •Aggressive camshaft with a nasty sound •Revs up fast and pulls hard in engines with big bore cylinders, modified cylinder heads, intake, compression and exhaust •The Reaper® 538 grind will shine in 124” and larger cubic inch engines with added compression ratio •Ported cylinder heads are not required, but will complement the cam and add even more pulling power throughout the range •The stock throttle body produces an excellent powerband and use of a high-flow throttle body will increase peak power numbers •A high-flow exhaust system and air cleaner is highly recommended for optimal performance •Feuling® recommends matching this cam with Race Series oiling system •High lift valve springs are required on stock cylinder heads; see Feuling BeeHive valve spring kit PART #s 0926-2973 or 0926-2974 on page 585 •SE cylinder heads have high lift valve springs, but will need to be verified •Heavy-duty one piece pushrods are also highly recommended; see PART #0928-0091 on page 594 •2250 to 6250 rpm range 592 CAM •Get serious with bore size, ported cylinder heads and throttle body •Aggressive camshaft requiring high lift and higher load valve springs, performance pushrods and lifters •High-flow air cleaner and triple-stepped exhaust pipe highly recommended •Feuling® also recommends matching this cam with Race Series oiling system PART #s 0932-0199 or 0932-0218 •Requires High lift/high load valve springs; see PART #0926-3138 on page 585 •Heavy-duty pushrods are highly recommended; see PART #0928-0091 on page 594 •High lift valve springs, performance pushrods and lifters required •2350 to 5975 rpm range 618 F CAM •Requires large bore size, ported cylinder heads, ported intake manifold, high flow valves and a large throttle body •Aggressive camshaft requires high lift/high load valve springs, performance pushrods and lifters •High-flow air cleaner and triple stepped exhaust pipe are highly recommended •Feuling® also recommends matching this cam with Race Series® oiling system PART #s 0932-0199 or 0932-0218 on page 643 •3100 to 6650 rpm range
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