American V-Twin Catalogue
Transcription
American V-Twin Catalogue
2013 American V-Twin Catalog 0.050 Replacement Valves Valve Guides Valve Spring Kits Valve Seat I nserts Valve Seals Comp. Release Valves Valve Guides Reamers -It always pays to buy the best- Part #: AV&V 157° WELCOME 4.590 Curiosity is the mother of creativity. 167° 0.130 (45 deg.) AV&V is and always has been a pioneer when it comes to technological innovations for the Harley-Davidson cylinder head components. Systematic and advanced development is part valvetrain components . 0.100 17 valve guide models and 14 different valve R0.150 HANFER High Flow Valves R0.600 0.236 line of High Performance valvetrain components in the industry. 0.3108 `0.0002 0.265 .0 AV&V Black Tulip & Chrome tulip Extreme Duty valves These superb valves feature the highest flow level on the market. They are one piece forged from a racing grade stainless steel alloy. Each valve has a bearing quality hardened tip at the end of the stem to prevent premature wear with high-lift applications. AV&V's 5/16 stem valves also features a 45o angle below the lock groove to facilitate the valve seal installation. Each valve is heat treated with a special process and the stem is centerless grinded to a micro finish for a longer life. Evolution Big Twin & Twin Cam (5/16 stem) Part No. Type Head Dia. Overall Lenght Stem Dia. Coating Note AV1570 Exhaust 1.570" 4.520" .3106" Black - AV1610D Exhaust 1.610" 4.510" .3106" Black - AV1610S Exhaust 1.610" 4.565" .3106" Black For S&S heads Overs. valve for Jims 120 & SE 110 heads AV1650 Exhaust 1.650" 4.510" .3106" Black AV1700C Exhaust 1.700" 4.470" .3106" Chrome For Merch heads AV1700A Exhaust 1.700" 4.535" .3106" Black .250" tip (Hardened tip can be grinded to shorten valve) AV1700U Exhaust 1.700" 4.635" .3106" Black For ULTIMA heads AV1813 Intake 1.812'' 4.485'' .3108'' Chrome For Buell heads HD11 Intake 1.845" 4.458" .3108" Black (Also good for stock replacement) AV1900 Intake 1.900" 4.440" .3108" Black - AV1900S Intake 1.900" 4.415" .3108" Black .025" shorter AV1940 Intake 1.940" 4.440" .3108" Black - AV1990 Intake 1.990" 4.440" .3108" Black - AV2020A Intake 2.020" 4.440" .3108" Black For Merch heads or other AV2020 Intake 2.020" 4.490" .3108" Black .050" longer AV2020S Intake 2.020" 4.480" .3108" Black For S&S heads AV2060LC Intake 2.060" 4.510" .3108" Chrome Overs. valve for S&S heads AV2100 Intake 2.100" 4.475" .3108" Black Overs. valve for Jims 120& SE 110 heads AV2100U Intake 2.100" 4.590" .3108" Black For ULTIMA heads AV2150 Intake 2.150" 4.480" .3108" Chrome Overs. valve for Jims 120 / 131 heads Twin Cam (7MM stem, Triple Groove) Part No. Type Head Dia. Overall Lenght Stem Dia. Coating AV1575-7TGB Exhaust 1.575" 4.560" .2755" Black Note - AV1575-7TGC Exhaust 1.575" 4.560" .2755" Chrome - AV1610-7TGB Exhaust 1.610" 4.555" .2755" Black .035" overs. valve AV1610-7TGC Exhaust 1.610" 4.555" .2755" Chrome .035" overs. valve AV1810-7TGB Intake 1.810" 4.455" .2757" Black - AV1810-7TGC Intake 1.810" 4.455" .2757" Chrome - AV1850-7TGB Intake 1.850" 4.455" .2757" Black .040" overs. valve AV1850-7TGC Intake 1.850" 4.455" .2757" Chrome .040" overs. valve AV1900-7TGB Intake 1.900" 4.455" .2757" Black .090 "overs. valve AV1900-7TGC Intake 1.900" 4.455" .2757" Chrome .090" overs. valve AV1980-7TGB Intake 1.980" 4.455" .2757" Black .170" overs. valve 2 Sportster 1200 & Buell (5/16 stem) Part No. Type Head Dia. Overall Lenght Stem Dia. Coating Note AV1485 Exhaust 1.485" 4.560" .3106" Black Also good for stock replacement AV1580 Exhaust 1.580'' 4.575'' .3106'' Chrome For Buell heads AV1720B Intake 1.720" 4.480" .3108" Black Also good for stock replacement AV1770 Intake 1.770" 4.480" .3108" Black Overs. valve AV1813 Intake 1.812'' 4.485'' .3108'' Chrome For Buell heads AV1851 Intake 1.851'' 4.485'' .3108'' Chrome Oversized valve for Buell heads Sportster 1200 & Buell XB9 / XB12 (7mm stem) Head Dia. Overall Lenght Stem Dia. Coating Note AV1576-7TGB Exhaust 1.575" 4.620" 7mm Black Also good for stock replacement, triple groove valve AV1811-7TGB Intake 1.810" 4.480" 7mm Black Also good for stock replacement, triple groove valve AV1851-7TGB Intake 1.851" 4.520" 7mm Black Overs. valve, triple groove valve Part No. Type Sportster 883 to 1200 Conversion (5/16 stem) Part No. Type Head Dia. Overall Lenght Stem Dia. Coating Note AV1480 Exhaust 1.480" 4.640" .3106" Black Seats must be machined deeper and their I.D. AV1720 Intake 1.720" 4.560" .3108" Black must be enlarged to accept these valves. V-Rod Part No. Type Head Dia. Overall Lenght Stem Dia. Coating Note AV34-6TGC Exhaust 34.4MM 116.9MM .2346" Chrome Triple groove valve AV35-6TGC Exhaust 35.4MM 116.9MM .2346" Chrome Triple groove valve AV40-6TGC Intake 40MM 116.28MM .2351" Chrome Triple groove valve AV41-6TGC Intake 41MM 116.28MM .2351" Chrome Triple groove valve 35.4MM 116.9MM .2346" Chrome Single groove valve(Use with AV&V R6MMSGOE-4) 41MM 116.28MM .2351" Chrome Single groove valve(Use with AV&V R6MMSGOE-4) Note AV35-6SGC Exhaust AV41-6SGC Intake Blank Valves (no tip, no groove) Part No. Type Head Dia. Overall Lenght Stem Dia. Coating AV35-6B Exhaust 35.4MM 5" .2346" Chrome - AV41-6B Intake 41MM 5" .2351" Chrome - AV1650BC Exhaust 1.650" 5.7" .3106" Chrome - AV1700BC Exhaust 1.700" 5.7" .3106" Chrome - AV2100BC Intake 2.100" 5.7" .3108" Chrome - AV2200BC Intake 2.200" 5.7" .3108" Chrome - 3 AV&V Extreme Duty Replacement valves These superb valves are one piece forged from a racing grade stainless steel alloy. Our liquid nitriding process creates a valve that is smoother and stronger than traditional O.E.M. or replacement valves. The stems are centerless grinded to a micro finish for a longer life. AV&V Extreme Duty valves also feature a 45 o angle below the lock groove to facilitate the valve seal installation. Type Head Dia. Overall Lenght Stem Dia. Coating Model Part No. Exhaust 1.355" 4.635" .3106" Black 883 Sportster (5/16 stem) AV1355 Intake 1.590" 4.550" .3108" Black 883 Sportster (5/16 stem) AV1590 - - - - - - - Exhaust 1.562" 3.510" .3392" Black 900 / 1000 Ironhead Sportster HD03 Intake 1.812" 3.600" .3110" Black 900 Ironhead Sportster HD04 Intake 1.940" 3.600" .3110" Black 1000 Ironhead Sportster HD05 - - - - - - - Exhaust 1.485" 4.560" .3106" Black 1200 Sportster (5/16 stem) AV1485 Intake 1.720" 4.480" .3108" Black 1200 Sportster (5/16 stem) AV1720B - - - - - - - Exhaust 1.575'' 4.620'' .2755" Black 1200 Sportster (7mm stem) AV1576-7TGB Intake 1.810'' 4.480'' .2757" Black 1200 Sportster (7mm stem) AV1811-7TGB - - - - - - - Int/Exh 1.750" 3.825" .3765" Black Panhead HD07 - - - - - - - Exhaust 1.750" 3.825" .3765" Black Shovel Head 1966-1984 HD07 Intake 1.940" 3.875" .3770" Black Shovel Head 1966-1984 HD09 - - - - - - - Exhaust 1.615" 4.525" .3106" Black Evolution 1340 1984 & up HD10 Intake 1.845" 4.455" .3108" Black Evolution 1340 1984 & up HD11 - - - - - - - Exhaust 1.570" 4.525" .3106" Black Twin Cam (5/16 stem) HD12 Exhaust 1.575" 4.545" .2755" Black Twin Cam (7mm stem) AV1575-7TGB Exhaust 1.575" 4.545" .2755" Chrome Twin Cam (7mm stem) AV1575-7TGC Intake 1.810" 4.455" .2757" Black, Twin Cam (7mm stem) AV1810-7TGB Intake 1.810" 4.455" .2757" Chrome, Twin Cam (7mm stem) AV1810-7TGC Intake 1.845" 4.455" .3108" Black Twin Cam (5/16 stem) HD11 4 AV&V Extreme Duty Manganese bronze valve guides AV&V's Manganese bronze alloy allows you to fit the valve at a tighter clearance for better heat dissipation, longer life and quieter engine. Special Hi-temp. Viton O'ring to prevent oil infiltration between guide & head. Tapered & radiused nose for easier installation and better air flow. Unique Super Grip valve seal section : use either OEM style or viton seals. CNC machined Unfinished I.D. ready to be easily finished with AV&V's Carbide reamers ( see reamers section) V-Rod Use with O.E. style valve seals (V6MM). Profiled for optimum airflow. Oversize O.D. I.D. Intake & Exhaust Std. .3955" 5.9MM VG7000 .001" .3965" 5.9MM VG7001 .002" .3975" 5.9MM VG7002 .003" .3985" 5.9MM VG7003 Twin Cam, Evo & Sportster (High lift & high flow application) Use with .530" Viton valve seals (V312531). Shorter seal area for high lift application. Profiled for optimum airflow. Same guides as above except for the seal diameter. Use with .421" Viton valve seals (V312421),or O.E. style valve seals (K312420) Oversize O.D. I.D. Intake Exhaust Std. .5625" .309" VG5600 VG5700 .001" .5635" .309" VG5601 VG5701 .002" .5645" .309" VG5602 VG5702 .003" .5655" .309" VG5603 VG5703 .004" .5665" .309" VG5604 VG5704 .005" .5675" .309" VG5605 VG5705 .006" .5685" .309" VG5606 VG5706 .010" .5725" .309" VG5610 VG5710 .025" .5875" .309" VG5625 VG5725 Oversize O.D. I.D. Intake Exhaust Std. .5625" .309" VG5600S VG5700S .0005'' .5630'' .309'' .001" .5635" .309" VG5600-5S VG5700-5S VG5601S VG5701S Twin Cam, Evo & Sportster (Stock replacement) Oversize O.D. I.D. Use with .530" O.E. style valve seals Std. .5625" .309" VG5500 .001" .5635" .309" VG5501 Stock lenght .002" .5645" .309" VG5502 .003" .5655" .309" VG5503 (K312530). Intake & Exhaust .004" .5665" .309" VG5504 .025" .5875" .309" VG5525 5 Twin Cam, Evo & Sportster 7MM (High lift & high flow application) Use with O.E. style valve seals (V7MMOE). Profiled for optimum airflow. Oversize O.D. I.D. Intake Exhaust Std. .5625" .273" VG6600 VG6700 .001" .5635" .273" VG6601 VG6701 .002" .5645" .273" VG6602 VG6702 .003" .5655" .273" VG6603 VG6703 .004" .5665" .273" VG6604 VG6704 .010" .5725" .273" VG6610 VG6710 .025" .5875" .273" VG6625 VG6725 Shovel Head 1340 (1979-1984) Use with .625" O.E. style valve seals (K375625). Profiled for optimum airflow. Oversize O.D. I.D. Std. .6250" .375" Intake & Exhaust VG5400 .001" .6260" .375" VG5401 .002" .6270" .375" VG5402 .003" .6280" .375" VG5403 .004" .6290" .375" VG5404 .005" .6300" .375" VG5405 .006" .6310" .375" VG5406 .010" .6350" .375" VG5410 .015" .6400" .375" VG5415 .025" .6500" .375" VG5425 Intake & Exhaust Shovel & Pan Head 1200 (1948-1979) Oversize O.D. I.D. Std. .5660" .375" VG5300 .001" .5670" .375" VG5301 .002" .5680" .375" VG5302 .003" .5690" .375" VG5303 Use with .562" O.E. style valve seals (K375562). .004" .5700" .375" VG5304 Profiled for optimum airflow. .005" .5710" .375" VG5305 .006" .5720" .375" VG5306 .008'' .5740'' .375'' VG5308 .010" .5760" .375" VG5310 .015" .5810" .375" VG5315 .025" .5910" .375" VG5325 XL 1957 to early 1983 Made from G2 Cast Iron Shortened seal section allows .530" valve seal installation (K312530 & K341530). Profiled for optimum airflow. Oversize O.D. I.D. Intake Std. .5645" .309" VG5100C Exhaust .001" .5655" .309" VG5101C .002" .5665" .309" VG5102C .003" .5675" .309" VG5103C Std. .5645" .339" VG5200C .001" .5655" .339" VG5201C .002" .5665" .339" VG5202C .003" .5675" .339" VG5203C 6 Universal repair guides Ready to be machined as custom guide. O.D. I.D. Intake & Exhaust .740" .273" UVG7MM Manganese bronze .740" .308" UVG308 .740" .375" UVG375 AV&V's Solid Carbide Valve Guide Reamers For Manganese bronze only; Do not use with cast iron guides Tired of loosing your time honing and fitting valve guides? Here is why AV&V reamers are now used by the top cylinder head shops in the industry Specially designed by AV&V for use with manganese bronze material, these unique reamers feature a unique design and a longer pilot for a perfect alignment with the valve guide while reaming. You will ream a valve guide to exact dimension without any taper in 4 to 5 seconds only. Guides will last longer than with the honing method because there is no crosshatch left after reaming. One size allows you to fit both intake & exhaust if you use AV&V valves & guides. Diameter Application Part No. 4.0MM 4.0MM guides VGRC4MM 4.5MM 4.5MM guides VGRC4.5MM 5.0MM 5.0MM guides VGRC5MM 5.5MM 5.5MM guides VGRC5.5MM 6.0MM V-Rod & 6.0MM guides VGRC6MM 6.5MM 6.5MM guides VGRC6.5MM 6.6MM 6.6MM guides VGRC6.6MM 7.0MM 7.0MM guides VGRC7MM .2766" * 7MM TC/Sportster VGRC2766 .3110" Evo/TC/Sportster VGRC3110 .3115" Evo/TC/Sportster VGRC3115 .3120" **Evo/TC/Sportster VGRC3120 8MM 8MM guides VGRC8MM 9MM 9MM guides VGRC9MM .3777" Pan / Shovel VGRC3777 .3782" *** Pan / Shovel VGRC3782 * Harley-Davidson 7MM valve guides I.D.are actually 7MM+.001" (.2766") **Recommended size for all Evo/TC AV&V 5/16 valves *** Recommended size for all Pan/Shovel AV&V valves 7 AV&V Viton Valve Seals Made from a special Viton compound, these seals can resist higher temperatures than regular viton seals. Application Stem Dia. Guide O.D. Qty. per pkg. Part No. Replacement seal for V-Rod 6MM 8.5MM 100 V6MM100 Replace 7MM O.E. seal when using larger spring&lower collar. We strongly recommend the use of our valve seal driver #VSD7MM to install this seal. 7MM .562" 100 V7MM100 7MM .562" 100 V7MMOE100 5/16 .421" 100 V312421100 5/16 .531" 100 V312531100 Replacement for the 7MM O.E. seal. The viton and the steel section are bounded together to prevent oil infiltration. 5/16 valves Evo/Twin Cam This new seal from AV&V offers more press fit on the guide allowing installation on both Bronze and Cast iron guides. We strongly recommend the use of our valve seal driver #VSD312 to install this seal. 5/16 valves Evo/Twin Cam This new seal from AV&V offers more press fit on the guide allowing installation on both Bronze and Cast iron guides. We strongly recommend the use of our valve seal driver #VSD312 to install this seal. AV&V valve seal drivers -Allows easier and more precise installation of both O.E. or viton valve seals. -Valve seal is installed in centerline with the guide. -Prevent costly comeback caused by a loose seal. Application Part No. For 6MM V-Rod valve seals VSD6MM For all 7MM valve seals VSD7MM For all 5/16 valve seals VSD312 For all 3/8 valve seals VSD378 O.E. Style Valve Seals Application Guide O.D. Stem Dia. Qty. per pkg. Part No. Evo / Twin Cam .421" .312" 100 K312420-100 Evo / TC/Iron Head Sportster .530" .312" 100 K312530-100 Iron Head Sportster (Exhaust) .530" .341" 100 K341530-100 Pan/Shovel Head (1948-1979) .562" .375" 100 K375562-100 Shovel Head (1980-1984) .625" .375" 100 K375625-100 8 Valve Seat Inserts AV&V valve seats are made from a highly alloyed material and feature the following : Easy oversize identification by the part number Easy to machine with cutter and stone Resists severe pounding and dissipates heat better Work-hardens during running-in Radiused for easier installation Replacement Valve Seats for Shovel Heads (No machining required) O.D. I.D. Thickness Note Part No. 1.944" 1.575" .400" No machining required AV1944 2.135" 1.750" .400" No machining required AV2135 Oversize Valve Seats (Machining required) For all cylinder head models O.D. I.D. Thickness Note Part No. 1.630" 1.180" .385" - AV1630 1.757" 1.410" .430" - AV1757 1.882" 1.530" .410" - AV1882 2.008" 1.610" .440" - AV2008 2.040" 1.700" .425" - AV2040 2.070" 1.610" .460" - AV2070 2.132" 1.800" .460" Ideal size for AV&V 1.990" or 1980-7TGB Int. valve AV2132 2.163" 1.750" .455" - AV2163 1.757" 1.371" .315" Iron Head Sportster (Exhaust) AV1757S 2.068" 1.750" .315" Iron Head Sportster (Intake) AV2068 1.820" 1.375" .450" Universal repair seat AV1820 1.880" 1.435" .410" Universal repair seat AV1880 1.945" 1.375" .440" Universal repair seat AV1945 2.257" 1.550" .500" Universal repair seat AV2257 9 AV&V Extreme Duty Valve Spring Kit for V-ROD Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided, these springs have been designed to be used with high performance cams. Recommended for up to .580" lift. AV&V exclusive POSI-CLAMP keepers that clamp the valve above and below the 3 grooves for a 55% strenght increase compared to the stock style triple groove keepers. (see our technical info section for more details) Chromoly lightweight retainers. Maximum Seat pressure / Open pressure Coil bind height recommended lift Retainers (set of 8) Lower collars use the stock (set of 8 pr.) units Valve locks .580" 83#@1.500"/280#@0.900" 0.870" R7000S-8 VL6MMTGC .580" 83#@1.500"/280#@0.900" 0.870" R7000S-8 VL6MMSG Part No. Complete kit VSK7000TG (For triple groove valves) VSK7000SG (For single groove valves) AV&V High Performance Valve Spring Kits for Twin Cam, Evo & Sportster (for 5/16 v alves) Manufactured from ultra clean high silicon/vanadium Kobe alloy wire. 1.375" Top retainers for better clearance inside rocker covers. Available with chromoly(S) or titanium(T) retainers. Maximum Seat pressure/ Open pressure Coil bind height recommended lift .600" .600" .650" .650" ves) Retainers (set of 4) 155#@1.885"/175#@1.825" " " " " " " 185#@1.860"/460#@1.160" " " " " " " 1.080" 1.080" 1.080" 1.080" R311CS-4 R311CT-4 R311CS-4 R311CT-4 Valve locks (set of 4 pr.) VL311A VL311A VL311A VL311A Lower collars (set of 4) LSC600-4 LSC600-4 LSC600-4 LSC600-4 Part No. Complete kit VSK600S VSK600T VSK650S VSK650T "S" at the end of part numbers is for Steel retainers and "T" is for Titanium 10 AV&V Extreme Duty Valve Spring Kit for Twin Cam, Evo & Sportster (for 5/16 valves) Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided, these springs have been designed to be used with Wood Performance's and other serious high performance cams. Recommended for .640" to .675" lift. 1.365" Top retainers for better clearance inside rocker covers. Titanium retainers. Maximum Seat pressure / Open pressure Coil bind height recommended lift .675" Retainers Valve locks (set of 4) 185#@1.860"/460#@1.160" 1.080" R311CT-4 (set of 4 pr.) VL311A Lower collars Part No. Complete (set of 4) kit LSC600-4 VSK675T AV&V High Performance BEEHIVE Spring Kits for 5/16 Valves Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided to resist in the most severe environnements. CNC machined Extreme Duty 9 deg. locks. Ultralite Chromoly forged retainers. Maximum Seat pressure / Open pressure Coil bind height recommended lift .600" .650" Retainers (set of 4) 165#@1.860"/384#@1.250" 180#@1.880"/385#@1.200" 1.200" 1.150" R6000-4 R6500-4 Valve locks (set of 4 pr.) VL311C VL311C Lower collars (set of 4) LSC6000-4 LSC6500-4 Part No. Complete kit VSK6000 VSK6500 NOTE: 6000 springs - Small end ID: .650", OD: 1.085" / Large end ID: 1.000", OD: 1.445" 6500 springs - Small end ID: .740", OD: 1.185" / Large end ID: 1.055", OD: 1.500" 11 AV&V High Performance BEEHIVE Spring Kits for 7MM Valves (Fit both Single Groove and Triple Groove valves) Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided to resist in the most severe environnements. CNC machined Extreme Duty 9 deg. locks. (VSK65007SG ) Ultralite Chromoly forged retainers. Maximum Seat pressure / Open pressure Coil bind height recommended lift .600" .650" 165#@1.860"/384#@1.250" 178#@1.860"/385#@1.200" 1.200" Retainers Valve locks Lower collars Part No. (set of 4) (set of 4 pr.) Complete kit R60007SG-4 VL7MMSG Use O.E. seals VSK60007SG 1.150" R6500-4 VL7MMSGC LSC6500-4 VSK65007SG This kit must be used with AV&V V7MM valve seals NOTE: 6000 springs - Small end ID: .650", OD: 1.085" / Large end ID: 1.000", OD: 1.445" 6500 springs - Small end ID: .740", OD: 1.185" / Large end ID: 1.055", OD: 1.500" AV&V Retainer & Lock Kit for stock Beehive Springs Stronger design than O.E.M. to be used with 7MM Single groove or triple groove valves. Kit includes 4 retainers and 4 pair of valve locks R7MMSGOE-4 12 AV&V High Performance Valve Spring Kits for Pan & Shovel Heads Manufactured from ultra clean high silicon & vanadium alloy wire. CNC machined tight fit locks. Light weight Chromoly retainers. Maximum Seat pressure / Open pressure Coil bind height recommended lift Retainers Valve locks Lower collars (set of 4) (set of 4 pr.) Part No. Part No. (set of 4 pr.) Springs only Complete kit .470" 155#@1.375"/300#@.980" .850" R530-4 VL375-4 Use O.E.M. S470-4 VSK470 .530" 155#@1.455"/320#@.980" .850" R530-4 VL375-4 Use O.E.M. S530-4 VSK530 .625" 175#@1.455"/350#@.980" .850" R530-4 VL375-4 Use O.E.M. S590-4 VSK590 * Note : These Pan/Shovel valve springs are not bolt-in items. Always make sure to check the minimum spring spacing and to keep a minimum of .060" before coil bind, at full lift. Early 1948-1980 heads must be machined to accept AV&V's late style lower collars. You may need to machine the spring seat with Goodson spring seat cutter #VSS-1680HD and/or use AV&V upper spring collar kit #R530-4 and/or machine the valve seats deeper to get the correct spring spacing. AV&V Retainers, Lower Collars and Valve Locks for Pan & Shovel Heads Description Part No. Chromoly Retainers (allows .060" more spring travel) R530-4 Late style Shovel Lower Spring Collars LSC530-4 CNC machined Valve Locks VL375-4 13 AV&V Valve Spring Shims Perfect Evo / Twin Cam fit No more automotive adaptation Hardened steel Application Thickness I.D. O.D. Part No. Evo / Twin .015" 0.600'' 1.480'' VSS5015-20 (pkg of 20) Cam Evo / Twin .015" 0.600'' 1.480'' VSS5015-100 (pkg of 100) Cam Evo / Twin .030" 0.600'' 1.480'' VSS5030-20 (pkg of 20) Cam Evo / Twin .030" 0.600'' 1.480'' VSS5030-100 (pkg of 100) Cam TC w/ O.E. .022'' 1.010'' 1.441'' VSS6022-20 (pkg of 20) style seals TC w/ O.E. .022'' 1.010'' 1.441'' VSS6022-100 (pkg of 100) style seals Compression release valves AV&V compression release valves are easier to install due to their short thread section.(# JCR10A & JCR10B). You don't need to machine the heads as deep like if you were using O.E.M. style . O.E.M. style also available (# JCR10D) Ideal for stock replacement Also their high-temperature resistant knobs are charcoal colored for a better match with black or silver heads. 14