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SERVICE: Available for customers during listed hours: Morning: 9:00 A.M. 10:00 ... : www.andrewsproducts.com E032204 Harley-Davidson, Sportster, Evolution, H/D, ... Superglide, Buell are all trademarks of Harley- Davidson Motor Co. Andrews Products is ... not associated with the Harley-Davdison Motor Co. 2 COMPANY HISTORY ... 6 Chain Drive Camshafts ... 7 Twin 88 Gear Drive Camshafts ... 8 Twin 88 Gear Drive Installation Kits and Pushrods ... 18 TROCK CAM AND HEAD TOOLS 4 Lobe End Play Checkers ... 18 COMPETITION AND RACE CAMSHAFT KITS Dragster Cams (EV80, EVXL, SHOVEL ... EV 80 TRANSMISSION BELT SPROCKETS Belt Drive Sprockets (29, 30, 34 Teeth ...

CHOOSING A CAM CAMSHAFTS AND HYDRAULIC LIFTERS 4 The question What cam should ... I buy for my bike ? is one we often hear. While there are no hard and fast rules ... around street riding or is the goal to have an engine which is running at maximum ... torque and horse power for track or drag racing? 2. Type of riding: Do you spend ... a lot of your time riding two up on highway trips or is it more important to have ... combination: This question relates to displacement (cubic inches), compression ratio, bike ... weight and what kind of cylinder head modifications have been done. Have the ... to result in better flow efficiency? Does the engine have a higher than stock ...

your new 88 engine? Andrews Products has eight proven Twin 88 grinds for 2004 to ... get you there. More HP and torque for stock or modified ... easy reach. All cam grinds listed are designed for use with stock H/D hydraulic ... lifters. Matching pushrods and heat treated steel sprockets are listed on ... bolt in cam grind, EZ-install pushrods do not require removal of gas tanks or ... boxes for installation. TWIN 88: CHAIN DRIVE CAMS AND KITS TOURING AND PERFORMANCE ... 072 Stock Carbureted engine: stock cam data listed for reference. Carburetors 36/04 ... Stock engine output is approximately 62 HP). Stock (B) 02/34 216 257 .473 .087 ... Stock Fuel injected engine: stock cam data listed for reference. Injectors 36/04 ...

mean extra power for Evolution engines. H/D hydraulic lifters are capable of 6000 ... -moly steel pushrods are more rigid for high performance. EVOLUTION 80 CAMSHAFTS ... for reference. 1984-1987 cam is 212 deg. in- 88-91 53/-01 232 280 .495 .083 take ... , 202 deg. exhaust, .472" lift on both valves. ... 472 .049 Fuel Injector "O" cams are 200 deg int. and 216 exh. 291117 EV31 10/46 236 ... bolt-in street cam with more torque and HP for all 40/08 228 264 .498 .121 around ... STOCK Bolt-in street/touring cam for heavy bikes. Much more 45/13 238 .280 .495 . ... 46/14 240 274 .495 .166 of the art design. Very strong, broad torque band OK with ... or carburetors! which will pull hard from 2000 to 5500 RPM. 291130 EV3 21/37 ...

WHY DO CAM GEARS CAUSE NOISE: In the last few ... years there has been more and more interest in quieter ... sound like bad lifters, the following description should be helpful. This explanation ... mostly applies to H/D type four lobe cams. Whenever the ... lift point, the forces on the cam drive gear teeth change direction. If more ... a cam gear and a pinion gear, the directional change of force will result in an ... clicking") may sound annoying but won't hurt anything. Tight fitting gears will ... cause very noticeable whining which is definitely a more serious problem. Gear tooth and ... bearing damage can result from running zero backlash. ...

When installing cams with high lifts and long durations, a few general ... in mind. Remember that additional cam duration can produce more usable power but too ... much duration may actually hurt overall performance. The problem of ... engine response begins when too much duration results in lower cylinder compression ... low RPM torque and power. Too much duration in a camshaft is not necessarily a good ... springs in a vise! 2. Now measure the distance between spring lands as in diagram and ... write down the number for later use.This is the ... Solid Height. 3. Calculate INSTALLED SPRING HEIGHT ( ... min.) as follows: INSTALLED HT.= Solid Height .060 Max. Valve Lift 4. Max. valve lift ...

the best choice for stroker motors and drag applications where the greatest ... applications where quiet operation is desired, aluminum pushrods are the recommended ... . Both pushrod kits are made from 7/16 diameter tubing which will not interfere with ... collars are similar to late style H/D parts and will provide .060 more spring ... travel over stock collars. High lift cams are easier to install with ... spring collars) SPORTSTER CAMS (IRON HEAD) Duration(*) Max TDC Part# Year Grind ... 31 254 298 .410 .192 power for all iron head Sportsters with no head work. (Stock P ... (81-84)** exhaust is .380 lift, 242 deg. duration) 214025 (84-85)*** 214040 (57- ...

Andrews Products makes high performance cams for all EV Sportster ... below will run to 6500 RPM with stock hydraulic lifters. Stock H/D hydraulic lifters ... . Andrews Products EV Sportster cams have stock base circle sizes so stock ( ... are also available. Note: #2 cam drive gears used in 2000 and up EV Sportster ... cams uses 46 teeth; the '91-99 #2 gear has 36 teeth. 46 tooth gears will fit 91-99 ... 4 chrome-moly steel rods; '91 up) High Lift Evolution Springs used with ... easily be accommodated. Installation does not require machining of heads. Part # ... ) SPORTSTER EVOLUTION AND BUELL CAMS Duration Max TDC Part# Year Grind Timing(*) .053 ... 020 Lift Lift Application TOURING AND HIGH PERFORMANCE CAMS 15 Stock (86-91) D 02/ ...

ENGINES 16 BUELL BLAST CAMSHAFTS Has any H/D engine ever made it past the ... extra power? The new Blast engine is no different. Almost from the time the first Blast ... bike hit the street, we have been asked about cams with more stuff. ... The Blast engine is basically designed around the front cylinder from a ... Sportster engine. Andrews Products has more experience making Sportster type ... . 2 Chrome-Moly Pushrods; Part#: 292035 Duration Valve Lift @ Part# Grind Timing(*) . ... 053 .020 Lift TDC Springs Application Duration Valve Lift @ Part# Grind Timing(*) . ... 264 .498 .163 Stock More valve lift and duration means extra power thru 43/15 238 276 . ...

for a stock motor, a big lift cam for a dragster or something in between, Andrews ... cams for these engines are computer designed and precision ground from alloy steel ... : 1.00, UL80: 1.00. CAMS FOR STREET AND DRAG APPLICATIONS Duration Valve Lift Lift ... AND PAN CAMSHAFTS STOCK (Front cyl) H -06/46 220 256 .390 .412 .051 Stock H/D ... .412 .176 Later stock "S" grind cams have similar specs. STOCK (Rear cyl) H 14/38 ... 232 274 .390 .412 .129 Stock H/D rear cylinder timing listed for ... .412 .176 Later stock "S" grind cams have similar specs. 212011 (48-69) J 21/41 ... 154 through RPM range. Bolts in with no head work. 212030 (78-84) 212270 (48-69) A ... 21/43 244 296 .450 .470 .156 Street/drags: Bolts into Shovels (except '80-'81) ...

smoother. Our springs and collars are designed for easy installation and maximum ... for all Shovel engines using stock diameter tubing so there is no cover tube ... . . . . . . . . . . . Part #240030 A. High Lift Upper Spring Collars: H/D 74/80 ... motors. Used with high-lift springs, cams with .600 lift can easily ... T6 aluminum, collars are light weight, hard coated and very strong. 4 high lift ... Part #271100 B. High Lift Springs: for 74/80 inch motors; ... of our performance cams. Installation does not require complicated machining. 4 ... high lift springs ... to install B grind or #2 cams in stock heads. 4 medium lift upper collars ... Part #276150 D. Low Profile Lower Spring Collars: for ...

ratio. As long as fuel with a high enough octane rating is available (so ... it will burn without detonation), raising the compression ratio can be ... of material which must be milled from heads (or cylinders) to change compression ... ratios may be easily determined. Although the formula listed in the next ... (or too simple) it is correct and it does work! Only the stroke length, the ... ratios need to be known. As an example, how much must be milled off EV80 heads to ... exact thickness, (T) to mill from the heads (or cylinders) can be calculated: ... EV80 and Twin 88 (Stock bore stroke): Head Compression Ratio Milling (T) EV80 Twin ... the forces on the cam gear teeth change direction. If there is more than .002 backlash, ...

INDUSTRY STANDARD 20 Andrews Products has been making cams and trans gears for H/ ... D type engines for 30 years. We are the ... as a manufacturer is to maintain the highest level of quality and service for all of ... CNC gear shaper. Grinding internal diameters on a programmable ID grinder. Camshaft ...

Part #296120 (1st counter 31T) Replaces H/D #35622-79A Part #296125 (1st main 18T ... ) Replaces H/D #35025-79 (B) 2.94 CLOSE RATIO 1ST GEAR ... 296330 (2nd counter/3rd main) Replaces H/D #35027-79A Part #296220 (2nd main/3rd ... counter) Replaces H/D #35026-79A (D) STOCK 4TH GEARS Part #296445 (4th main ... gear) replaces H/D #35028-79. Part #296440 (4th counter ... gear) replaces H/D #35625-79A (1987up); also replaces gear ... in all earlier 5 speeds. (E) STOCK MAIN DRIVE GEARS (Belt Drive) Part #296585 (main ... drive-belt) replaces H/D #35029-85 Part #296591 (main drive-belt ... ) replaces H/D #35029-91 Part #296555 (cntr drive gear ... ) replaces H/D #35626-79A STOCK MAIN DRIVE GEARS (Chain Drive) (Not shown) Part # ...

26 Big Twin 4 speed transmissions have been built since 1936 in several ... Andrews gears feel so good that its hard to believe until you experience the ... difference for yourself. 2.44 1ST GEAR SET (1959 ... gear set works best with E glides and heavier bikes with motor or trans sprockets ... having more teeth than stock sprockets. ... and countershaft gear. Cluster gear has 15 and 20 teeth; counter has 26 teeth. ... 1936 version has no rear counterbore and requires short ... the super close ratio shifting to handle it. OK for street or drags with any ... (1.82 RATIO) Part #202160 (replaces H/D# 35751-36) Stock 2nd gear with face ... milled drive dogs for more positive 1-2 shifts. This 21 ...

27 Andrews Products makes four different versions of 4 speed big twin ... and asks us to look up blueprint dimensions, here they are! Regarding one additional ... mainshaft: H/D part number 35039-84 fits belt drives. ... This is the same part as H/D 35039-85 except that 35039-85 uses a ... different drive key. It is very important that the ... correct drive key be used. The H/D part number for the drive key is 37523- ... Products part number for the belt drive trans shaft is 208800. STOCK MAIN DRIVE ... 4TH) Part #204260 (1936-1976) (replaces H/D# 35065-65) Part #204280 (1977-1986) ( ... replaces H/D# 35067-77 and 35067- 84) Replacement 4th ...

Part #299102 (2nd main/3rd counter) (H/D #35771-89) Part #299103 (3rd main/2nd ... counter) (H/D #35772-89) (C) STOCK 4TH GEARS Part # ... 299104 (4th main gear) (H/D #35773-89) Part #299144 (4th counter ... gear) (H/D #35775-89). (D) STOCK MAIN DRIVE GEARS Part #299105 (main drive) (H/D # ... 35034-89) Part #299155 (counter drive gear) (H/D #35633-89) (E) TRANSMISSION ... MAiNSHAFT Part #299180 mainshaft) (H/D #35640-89) F) TRANSMISSION COUNTERSHAFT ... Part #299170 (countershaft) (H/D #35641-89) EV SPORTSTER 5 SPEED GEAR ... 5 speed Sportster gears are made from high nickel alloy steel. Gears are then heat ... treated and shot-peened to give maximum durability and strength. Also, where applicable, ...

4 speed Sportster gears are made from high nickel alloy steel which is heat ... treated and shot peened for maximum durability. Shot peening greatly improves the wear ... resistance of drive edges and slots. All Sportster ... counter (23T) (replaces 35709-54A 54B) (D) TRANSMISSION SHAFTS. Replacement ... transmission shafts for standard H/D part numbers. Our shafts are made of ... alloy material for maximum strength and durability on this most critical part. Part # ... countershaft (1956-mid-84) (replaces H/D# 35613-58) Part #258080 early mainshaft ... -69 kick start) (replaces 35044-56) (Drilled through for clutch rod) Part #258120 ... 35046-71) (Solid shaft; no through hole) Part #258190 mainshaft (alternator) ( ...

30 The three best books written for Harley engine tuning! All three were written ... by noted technical author Denny Dennish of Crystal Publications. Big Twin High- ... tips and performance theories about H/D big twin engines. Includes listings of ... parts suppliers. V-Twin Tuner's Handbook, Volume One: . . . . . . . .Part# 700520 ... Additional 126 pages of discussions on shift points, rod length, airflow, ... V-Twin Tuner's Handbook, Volume Two: . . . . . . . .Part# 700540 ... 260 pages covering engine design and building, flowbench work, ... dynamometers, power curve analysis, and track side ... engine tuner. For all 1980 through '88 H/D bikes with STOCK Keihin carburetors, ...