Tulip Length Notes OEM Moto
For 05-17 Twin Cam
Exhaust
349-9317 05-17 1.575" .2755" 22º 4.520" Std. 18085-05
For 99-04 Twin Cam
Intake
349-9313 99-04 1.840" .3100" 23º 4.445" Std. 18074-83A
349-9314 99-04 1.900" .3100" 28º 4.420" Oversize -
Exhaust
349-9445 99-04 1.565" .3100" 17º 4.505" Std. 18085-99
For 84-99 Evolution Big Twin
Intake
349-9294 84-99 1.900" .3100" 28º 4.420" Oversize (Racing Profile) -
349-9311 84-99 1.840" .3100" 23º 4.445" Std. 18074-83B
349-9312 84-99 1.940" .3100" 23º 4.400" Oversize -
Exhaust
349-9296 84-99 1.630" .3096" 40º 4.525" Oversize (Racing Profile) -
349-9315 84-99 1.615" .3096" 29º 4.525" Std. 18082-83
For 86-03 XL
Intake
349-9322 88-03 1200 1.715" .3100" 23º 4.480" Std. 18023-87
349-9318 86-03 883 1.585" .3100" 23º 4.550" Std. 18031-86
349-9320 86-03 883 to 1200 1.715" .3100" 23º 4.550" Conversion -
Exhaust
349-9323 88-03 1200 1.480" .3096" 40º 4.560" Std. 18024-87
349-9319 86-03 883 1.350" .3095" 17º 4.640" Std. 18030-86
349-9321 86-03 883 to 1200 1.480" .3096" 40º 4.625" Conversion -
For 84-04 Big Twin and 86-03 XL
Special shouldered guides
• Overall length is 2.10"- Exaust is 2.15"
• These guides are shouldered for a positive stop for easy installation and best
performance
• Guides accept .600" lift cams and use OEM style .420" seals
• Made in the U.S.A.
Size Exhaust Intake Guide O.D Guide I.D
Std. 349-9258 349-9284 .5620" IN .3085", EX .3095"
+.001" 349-9259 349-9285 .5630" IN .3085", EX .3095"
+.002" 349-9260 349-9286 .5640" .3085"
+.003" 349-9261 349-9287 .5650" .3085"
For 84-04 Big Twin and 86-03 XL
OEM Style guides
• Overall length is 2.40"
• OEM style
• Machined for std. .420" seal and can be used as an intake or exhaust guide
• Made in the U.S.A.
Size Intake/Exhaust Guide O.D Guide I.D
Std. 349-9250 .5620" .3090"
+.001" 349-9251 .5630" .3090"
+.002" 349-9252 .5640" .3090"
+.003" 349-9253 .5650" .3090"
+.004" 349-9254 .5660" .3090"
+.010" 349-9257 .5620" .3090"
ROAD1 IRON
8 643
Black Diamond Valves
• One-piece stainless-steel, stellite-tipped valves impregnated by a special
nitrided process with .002" depth and .0002" surface buildup to improve wear
properties and reduce friction
• This process provides resistance to corrosion; wears superior to hard
chromium and electrolysis nickel-plating
• Lightweight with profiles that provide excellent flow characteristics
• Compatible with leaded and unleaded fuels and can be run in cast iron
and bronze-type guides at close tolerances for maximum oil control and heat
dissipation
• Sold each
• Made In the U.S.A.
Year Diameter Stem
Diameter
AMPCO-45 Valve Guides +.004" 349-9262 349-9288 .5660" .3085"
• Precision-machined from Ampco-45
• Compatible with no-lead fuel and accept any type of valve-stem material
• Provide maximum service with chromed valve stems
For 05-17 Twin Cam and 04-17 XL
Special shouldered guides
• Overall length of both intake and exhaust is 2.055"
• Feature a tapered nose design for maximum bearing service and minimal
port obstruction; improves flow characteristics
• Accept .600" lift cams; also supplied with a one-piece Viton seal that locks
onto a machined groove in the guide
• Made in the U.S.A.
Size Exhaust Intake Guide O.D Guide I.D
Std. 349-9373 349-9370 .5620" .2750"