Jims Catalogue

PERFORMANCE VALVES

JIMS ® BLACK NITRIDE PERFORMANCE VALVES

JIMS ® completes the quest for the ultimate valve train system with the addition of these high-performance valves. Designed to withstand extreme racing conditions, these valves are constructed from a forged one piece racing grade stainless

steel alloy, and specially heat-treated for superior wear resistance. A special micropolished 45˚ angle just below the lock groove pre- vents excessive stress on the valve, and makes valve seal installation easier.

RACE ONLY

7

No.1313

No.1314S

(Use on 1984-present EVO Big Twin, and 1999-04 Twin Cam ® engines, and most aftermarket performance heads.) TWIN CAM/EVO BLACK NITRIDE PRO VALVES

PART NO. No. 1310A No. 1310B No. 1311 No. 1312 No. 1313A No. 1313

VALVE TYPE

HEAD DIA.

OVERALL LENGTH

STEM DIA.

PROFILE

Exhaust Exhaust

1.610” 1.570” 1.900” 1.940” 2.020” 2.020”

4.525” 4.525” 4.440” 4.440” 4.440” 4.490”

.3106” .3106” .3108” .3108” .3108” .3108”

Dished Head Dished Head Dished Head Dished Head Dished Head

Intake Intake Intake Intake

Dished Head (+.050”)

EVO SPORTSTER ® 883cc - 1200cc CONVERSION BLACK NITRIDE PRO VALVES These valves are designed to convert 1986 to present EVO Sportsters 883cc - 1200cc dimensions. NOTE: Valve seats must be machined larger and deeper to accommodate the larger valves.

PART NO. No. 1314 No. 1315

VALVE TYPE

HEAD DIA.

OVERALL LENGTH

STEM DIA.

PROFILE

Exhaust

1.480” 1.720”

4.640” 4.560”

.3106” .3108”

Dished Head Dished Head

Intake

S&S ® REPLACEMENT BLACK NITRIDE PRO VALVES

PART NO. No. 1314S No. 1315S

VALVE TYPE

HEAD DIA.

OVERALL LENGTH

STEM DIA.

PROFILE

Exhaust

1.610” 2.020”

4.565” 4.510”

.3106” .3108”

Dished Head Dished Head

Intake

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