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01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 07-130 For use in Evolution Big Twin & Twin Cam style engines with 5/16" valve stem ZPN Type Head Length Stem Coating Note 749166 Ex 1.570" 4.520" .3106" Black - 749174 Ex 1.610" 4.510" .3106" Black - 749175 Ex 1.610" 4.565" .3106" Black For S&S heads 749176 Ex 1.650" 4.510" .3106" Black Oversize valve for Jims 120 & SE 110 heads 749178 Ex 1.700" 4.470" .3106" Chrome For Merch heads 749179 Ex 1.700" 4.535" .3106" Black .250" tip can be grinded to shorten valve 749181 Ex 1.700" 4.635" .3106" Black For Ultima heads 749225 In 1.845" 4.458" .3108" Black Stock replacement 749194 In 1.900" 4.440" .3108" Black - 749197 In 1.900" 4.415" .3108" Black .025" shorter 749198 In 1.940" 4.440" .3108" Black - 749200 In 1.990" 4.440" .3108" Black - 749202 In 2.020" 4.440" .3108" Black For Merch heads 749201 In 2.020" 4.490" .3108" Black .050" longer 749203 In 2.020" 4.480" .3108" Black For S&S heads AV&V HIGH FLOW VALVES AV&V Tulip style 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. Valves with the 5/16" (.3106"-.3125") stem valves also features a 45 degree angle below the lock groove to facilitate valve seal installation. AV&V valves are heat treated with a special process and the stem is centerless ground to a micro finish for a longer life. Twin Cam 2005-2017 ZPN Type Stem dia. Head dia. OEM 750432 in. .2754" 1.805" 18074-05 750433 in. .2754" 1.900" Over size head 729537 in. .2757" 1.900" Over size head 729536 in. .2757" 1.980" Over size head 750434 ex. .2755" 1.575" 18085-05 729539 ex. .2755" 1.575" High Flow 25° 729538 ex. .2755" 1.610" Over size head 750435 ex. .2755" 1.630" Over size head 234298 Keepers .275" - 18260-02 Milwaukee Eight 2017 to present ZPN Type Stem dia. Head dia. OEM 729503 in. .2347" 1.571" 1800001 6 729504 in. .2347" 1.630" Over size head 729505 ex. .2347" 1.264" 1800003 4 729523 Keepers .2347" - 1810006 0 Evolution Big Twin 1984-1999 ZPN Type Stem dia. Head dia. OEM 232395 in. .310" 1.840" 18074-83A 232396 ex. .3096" 1.615" 18082-83 232397 in. .310" 1.940" Over size head 234890 in. .310" 1.900" High Flow 28° 729559 in. .3106" 1.900" High Flow 25° 729558 in. .3108" 1.940" High Flow 25° 729557 in. .3106" 1.990" High Flow 25° 729540 in. .3106" 2.100" High Flow 25° 729556 in. .3106" 2.150" High Flow 24° 729562 ex. .3106" 1.585" High Flow 25° 729561 ex. .3106" 1.610" High Flow 25° 234891 ex. .3096" 1.615" High Flow 29° 729560 ex. .3106" 1.650" High Flow 25° 729541 ex. .3106" 1.700" High Flow 25° 234297 Keepers .310" - 18229-83A Twin Cam 1999-2004 ZPN Type Stem dia. Head dia. OEM 239427 in. .3106" 1.840" 18074-83A 239429 ex. .3101" 1.565" 18085-99 239428 in. .3106" 1.900" High Flow 25° 729559 in. .3108" 1.900" High Flow 25° 234890 in. .310" 1.900" High Flow 28° 729558 in. .3108" 1.940" High Flow 25° 729557 in. .3108" 1.990" High Flow 25° 729540 in. .3108" 2.100" High Flow 24° 729556 in. .3108" 2.150" High Flow 24° 729562 ex. .3106" 1.585" High Flow 25° 729561 ex. .3106" 1.610" High Flow 25° 234891 ex. .3096" 1.615" High Flow 29° 729560 ex. .3106" 1.650" High Flow 25° 729541 ex. .3106" 1.700" High Flow 25° 234297 Keepers .310" - 18229-83A E�G�N� VALVES