1926-1984 Vintage Models - S&S Cycle

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S e ction 5:S&S ®Parts forTwin Cam 96 /103 2007-2012Parts forTwin Cam 88 ®1999-20061926-1984 Vintage ModelsCamshaftsFor 1948-’84 Big Twins With Stock Valve TrainThese camshafts are designed for performance upgrades in pan and shovel engineswith stock valve train — stock style tappets, pushrods and rocker arms. It isimportant to differentiate these cams from cams for use with the S&S HydraulicValve Train Update Kit, Retro Conversion Kit, or Replacement Cylinder Head Kit ForPans, which use 1984-’99 style cams. These cams are all high lift, with the exceptionof the 450S, and require high lift valve springs and clearance checks for installation.Parts forEvolution ®1984-1999Parts forSportster ® & Buell ®1986-2012Parts forVintage Engines1926-1984Parts forX-Wedge®2007-2012Parts forVictory®, Off-road& MetricRacingProductsFitment• 1948-’69 engines with generator style crankcases• 1970-’84 engines with alternator style crankcases• Early SH-Series engines with stock style valve trainApplications450S Cam: A bolt-in hydraulic cam for 74" and 80" shovelhead engines 1966-’79and 1983-’84. (Can be used in 1981-’82 models if cylinder heads are updatedto late style valve guides.) The 450S can also be used as a low end torque camin modified shovelhead engines up to 88" with compression ratios of up to 8.5:1.Although designed for use with hydraulic tappets, the S&S 450S can be used withsolid lifters. Use with solids will result in more valve train noise, slightly highercylinder pressure, and slightly more torque. 1500-4500 rpm. (see dyno chart)514 Cam: For 84" to 93" strokers with no greater than 9:1 CR – best gains occurin the mid range from 2500 to 5000 rpm where most riding is done. Relativelyquiet and easier on the valve train than most other cams with lifts as high. Solidlifters or aftermarket hydraulic tappets are recommended, valve spring spacing andother normal clearancing checks required. 2500-5000 rpm.560S Cam : For 88" to 103" engines between 9:1 to 10:1 CR – Excellent poweracross the rpm range. Not recommended for stock displacement or lowercompression engines. Requires high lift valve springs and normal clearance checks.Solid lifters only. 3500-6000 rpm.565S Cam: The 565S cam for big inch, high compression shovelhead engines isjust the ticket for big, bad engines like our 98" and 103" Sidewinder® Kits (see dynochart on next page). 10:1 to 12:1 compression required. The long duration of thiscam makes good top end horsepower. Solid lifters only. 3500-6500 rpm.Cam Specifications For 1948-’84 big twin engines33-5195The 450S is a great bolt-in street cam for 74" and 80" shovelhead engines. This dyno chart comparesthe S&S 450S to one of the all time favorites, the Andrews® A grind cam in an 80" shovelhead.Note that the maximum horsepower is almost identical, but the S&S 450S yields about 5 ft/lb moremidrange torque.Tools & ShopSuppliesDealer Services& Promo ItemsWarranty &Company PolicyOEM Cross ReferenceAppendix & Index5-4CamNameS&S450SS&S514S&S560SS&S565SApplicationEngines up to 88"with up to 8.5:1 CR.Good low and midrange torque.80" to 96"engines with 8:1to 9:1 CR.Good mid range.88" to 103"engines w/9:1 to10.1:1 CR. Strongpower.98" to 103"engines w/10:1 to12:1 CR. Strongpower.ModelYearCamPart No.1948-'69 33-50621970-'77 33-50631978-'84 33-50641948-'69 33-50501970-'77 33-50511978-'84 33-50521948-'69 33-50591970-'77 33-50601978-'84 33-50611948-'69 33-51931970-'77 33-51941978-'84 33-5195Order toll free 866-244-2673Valve Timing1 Open/CloseIntakeExhaustOpen BTDC/Close ABDC Open BBDC/Close ATDC18°/38° 40°/18° 236° 238°23°/43° 43°/23° 246° 246°Valve DurationLift @ TDC3 SpringValve Lift 2 SpacingIntake Exhaust Intake Exhaust Required.475" Pan.453" Shovel.540" Pan.514" Shovel.158" Pan.151"Shovel.177" Pan.169"Shovel.152" Pan.145"Shovel.177" Pan.169"ShovelNoBolt InYesTappet4TypeRequiredHydraulicorSolid20°/55° 60°/20° 255° 260° .560" Pan .176" Pan .172" Pan Yes Solid25°/60° 65°/25° 265° 270° .565" Pan .195" Pan .183" Pan Yes Solid1Timing designation is function of zero lash @ .053" off base circle.2Pan and shovel lifts are determined by rocker arm ratio. Pan ratio is nominally 1.5:1 and shovel ratio is nominally 1.43:1. S&S rocker arms for shovels have 1.5:1 rocker arm ratio, so lift will be the same as pan lift.3TDC lifts are measured at the valve and are for reference only. Overlap valve lifts must be checked on assembled motor.4Cams specified for solid tappets may be used with modern high performance hydraulic tappets for shovelhead engines. Stock hydraulic tappets are not recommended. 1980-'81 engines require conversion to late style valve guidesSolid
1926-1984 Vintage ModelsS&S ®CamshaftsFor 1954-’84 Big Twins With S&S Valve Train Conversion KitThese camshafts are for 1954-’84 big twins with either the Hydraulic Conversion kit orthe Cylinder Head Replacement kit for panhead engines. They are also replacementparts for Flathead Power® P-Series and SH-Series engines. Since these kits and enginesinclude 1984-’99 style hydraulic lifters, the larger late style roller diameter requires thatcams designed for 1984-’99 models must be used to achieve correct valve timing. Whenchoosing a late style cam for this type of engine, be aware that, due to the approximate1.5:1 rocker ratio of most aftermarket rocker arms for shovelheads, the total valve lift willbe reduced by about 9% from the specified value. The specification chart shown hereshows specs as used in a pan or shovel engine. These cams are available in generator andalternator styles.Alternator style cams come with late late '77-84 style gears. 70- early 77 applications willrequire converting to the late style (late 77-89) pinion gear.Late Style Cam Recommendations For Panhead and Shovelhead EnginesApplication RPM range Compression Ratio If you used... Then Use Generator Part No. Alternator Part No.74" – StockLow - MidS&S 450 or Andrews®8.5 and below84" low compression1500-4500 rpmJ or AS&S 513 106-6028 106-602774" and 80" – ModifiedMid - HighS&S 514 or Andrews8.5 - 9.53500-6000 rpm#3 or BS&S 585 33-5131 33-510984" – 93"Low - Mid2500-5500 rpm8.0 - 9.0 S&S 514 S&S 585 33-5131 33-510993" HC – 103"Mid - High3500-6000 rpm9.0 - 10.0 S&S 495 or 560S S&S 600 33-5132 33-5058High CompressionHigh3500-6500 rpmover 10.0 S&S 495 or 565S S&S 640 106-4639 33-5108CamNameS&S 513S&S 585S&S 600S&S 631S&S 640Application74" - 84" Stock orlow compression74"- 80" engines8.5:1 - 9.5:1 CR84" - 93" up to8:1 - 9:1 CR93" - 103" engines 9:1- 10:1 CRHigh rpm cam for 93" -103" engines 11:1+ CR93" - up engines10:1 or greatercompressionCam Specifications for 1954-’84 Big Twin Engines Requiring 1984-'99 Style camsGeneratorPart No.AlternatorPart No.Valve Timing 1Open/CloseIntake ExhaustOpen BTDC/Close ABDCOpen BBDC/Close ATDCValve DurationLift @ TDC 2ValveLiftIntake Exhaust Intake ExhaustSpringSpacingRequiredTappetTypeRequired106-6028 106-6027 18°/38° 40°/18° 236° 238° .472" .163" .187" No Hydraulic33-5131 33-5109 20°/45° 60°/20° 245° 260° .540" .172" .166" Yes Hydraulic33-5132 33-5058 20°/55° 60°/20° 255° 260° .554" .177" .170" Yes Hydraulic33-5078 33-5080 34°/61° 66°/29° 275° 275° .581" .359" .204" YesSolid orHydraulic106-4639 33-5108 25°/60° 65°/20° 265° 265° .590" .205" .192" Yes Hydraulic1Timing designation is function of zero lash @ .053" off base circle.Lifts based on 1.5:1 Rocker Ratio2Lifts at TDC are measured at the valve and are for reference only. Overlap valve lifts must be checked on assembled motor.Fitment• 1954-’65 engines with S&S Head Update kit• 1966-’84 engines with Hydraulic Conversion kit• P-Series and SH-Series engines• Custom generator style engines with 1984-’99 style top endFeatures and benefits• Quality construction – Made in-house by S&S Cycle in Viola, WI• Higher lift and increased valve timing for better performance• Quiet, dependable hydraulic valve train when used with S&S Hydraulic Conversion kitsParts forTwin Cam 96 /103 2007-2012Parts forTwin Cam 88 ®1999-2006Parts forEvolution ®1984-1999Parts forSportster ® & Buell ®1986-2012Parts forVintage Engines1926-1984Parts forX-Wedge®2007-2012Parts forVictory®, Off-road& MetricRacingProductsTools & ShopSuppliesDealer Services& Promo ItemsWarranty &Company PolicyNOTEs:In order to achieve stated timing specifications, these cams must be used in engines with 1984-’99 style tappets.These cams should not be ordered as replacement parts for early S&S SH-Series engines, or for any shovelhead engine equipped with stock valve train. For replacement parts for theseengines, select stock style cams and tappets.S&S can do a special order cam, please contact your S&S customer service representative for more informationVisit us at www.sscycle.comOEM Cross ReferenceAppendix & Index5-5
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