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Camshafts

TTS Camshafts are designed to provide smooth power delivery throughout your engine's entire operating range.

The various grinds allow you to select a cam that optimizes torque in the RPM range you require without compromising performance elsewhere.

WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Item	Part Number	Fitment	Price	Dyno Charts
TTS-100 Designed to increase torque in the 1000-4000 RPM range with smooth power to 5500 RPM. Developed for 88-117 CID with stock heads and pistons. Not recommended for compression over: - 10.2:1 Twin Cam - 10.5:1 Milwaukee-Eight Ideal for heavy bikes like baggers or trikes. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000300	All '07 - '17 Harley-Davidson Twin Cams and '06 Dynas Bolt-in design utilizes stock springs and pushrods	$450.00	(1 chart) (7 charts)
	2000302	All 1999 - 2006 Harley-Davidson Twin Cams except '06 Dyna Requires conversion to '07 - later style cam drive (see note 1 below)	$450.00
	2000306	All '17 - '22 Harley-Davidson Milwaukee-Eight models 2023 Milwaukee-Eight models except for CVO 121 Center Cooled engine 2024 Milwaukee-Eight models except for CVO 117 & 121 Center Cooled engines Bolt-in design utilizes stock springs and pushrods	$325.80
TTS-150 Designed to increase torque in the 2200-5200 RPM range. Developed for 88-117 CID with stock heads and pistons. Not recommended for compression over 10.5:1. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000303	All '07 - '17 Harley-Davidson Twin Cams and '06 Dynas Bolt-in design utilizes stock springs and pushrods	$450.00	(1 chart) (2 charts)
	2000304	All 1999 - 2006 Harley-Davidson Twin Cams except '06 Dyna Requires conversion to '07 - later style cam drive (see note 1 below)	$450.00
	2000307	All '17 - '22 Harley-Davidson Milwaukee-Eight Models 2023 Milwaukee-Eight models except for CVO 121 Center Cooled engine 2024 Milwaukee-Eight models except for CVO 117 & 121 Center Cooled engines Bolt-in design utilizes stock springs and pushrods	$325.80
TTS-175 Designed to increase torque in the 2400-5800 RPM range. Developed for Milwaukee-Eight engines with stock heads and pistons. Not recommended for compression over 11.3:1. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000310	All '17 - '22 Harley-Davidson Milwaukee-Eight Models 2023 Milwaukee-Eight models except for CVO 121 Center Cooled engine 2024 Milwaukee-Eight models except for CVO 117 & 121 Center Cooled engines Bolt-in design utilizes stock springs and pushrods	$325.80	(3 charts)
NEW!TTS-185 Designed to increase torque over a wide 2000-6500 RPM range. Developed for Center Cooled Milwaukee-Eight engines with stock heads and pistons. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000312	All '23 - '25 Harley-Davidson Milwaukee-Eight Models with Center Cooled engines Bolt-in design utilizes stock springs and pushrods	$325.80	(1 chart)
NEW!TTS-190 Designed to increase torque over a wide range. Developed for Center Cooled Milwaukee-Eight engines with stock heads and pistons. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000313	'24 - '25 Harley-Davidson Milwaukee-Eight 121 Center Cooled CVO ST Bolt-in design utilizes stock springs and pushrods Availability February 2025	$325.80	Coming February 2025
NEW!TTS-195 Designed to increase torque over a wide 2000-6500 RPM range. Developed for Center Cooled Milwaukee-Eight engines with stock heads and pistons. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000314	'23.5 - '25 Harley-Davidson Milwaukee-Eight CVO 121 VVT Bolt-in design utilizes stock springs and pushrods Availability February 2025	$325.80	(1 chart)
TTS-200 Designed to increase torque over a broad RPM range (1800-5500 RPM). Developed for Center Cooled Milwaukee-Eight engines with modified heads and pistons. Ideal for Stage III or IV kits. Not recommended for compression over 11.0:1. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000308	All '17 - '22 Harley-Davidson Milwaukee-Eight Models Requires: - Use of high lift valve springs (such as TTS Performance Valve Springs, P/N 2000311) - Modified valve reliefs in pistons	$325.80	(3 charts)
TTS-250 Designed to increase torque in the 2500-6000 RPM range. Developed for Milwaukee-Eight engines with modified heads and pistons. Ideal for Stage III or IV kits. Not recommended for compression over 12.0:1. FOR CLOSED COURSE COMPETITION USE ONLY. NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.	2000309	All '17 - '22 Harley-Davidson Milwaukee-Eight Models Requires: - Use of high lift valve springs (such as TTS Performance Valve Springs, P/N 2000311) - Modified valve reliefs in pistons	$325.80	(3 charts)
TTS M8 Performance Valve Springs These Milwaukee-Eight Beehive shaped valve springs are made to withstand the High Performance needs of higher lift camshafts like the TTS 200 and TTS 250 cam profiles. Manufactured from quality chrome silicon based wire that is shaped, heat treated and shot-peened to the highest standards. The unique shaped of the wire allows us to provide a high quality high lift spring in a smaller package size to properly control valve motion, without the need of excessive pressure which robs performance and decreases durability. Set of 8 valve springs.	2000311	All '17 - '22 Harley-Davidson Milwaukee-Eight Models These springs are drop in replacements for the stock M8 heads with no modifications necessary. When installed at stock spring height (1.535") they will handle .585" valve lift and when installed at 1.550" they will handle .600" Valve lift.	$257.85

Note 1: 1999 - '06 Conversion to '07 Style Cam Drive System

All TTS camshafts for H-D Twin Cam engines are designed to utilize the more efficient 2007 cam drive system. This system uses hydraulic tensioners and oil pressure to maintain chain tension. The parts to complete this conversion are listed below and can be purchased from your local H-D dealer.

Description	H-D P/N	Qty
Cam support plate	25355-06	1
Plate mounting screws (recommended, but old screws can be reused)	4741A	8
Oil pump	26037-06	1
Secondary cam drive chain	25683-06	1
Rear cam sprocket (‘02-’06)	25728-06	1
Crank sprocket	25673-06	1
Primary cam drive chain	25675-06	1
Retaining ring (front cam)	11461	1
Primary chain tensioner	39968-06	1
Secondary chain tensioner	39969-06	1
Primary tensioner mounting screws	942	2
Secondary tensioner mounting screws	4740A	2
Cam spacer kit (includes one spacer in each size 0.100", 0.110", 0.120", 0.130", 0.140", 0.150")	25928-06	1

In addition to the parts listed above, two modifications are necessary for use on '99-'06 H-D Twin Cam models (except '06 Dyna):

0.030" longer pushrods when used with stock heads.
Cylinder head assembly must be modified to accomodate higher valve lifts.

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