Jims Catalogue

VALVE SEATS

JIMS ® VALVE SEATS These valve seats are made from heat and wear resistant high quality steel alloy. Each seat is manufactured with a radius edge for easy installation. These seats will resist intense valve pounding and effectively dissipate heat for consistent valve sealing. These valve seats will increase in hardness during engine break-in period. See the charts below for sizes.

EVO & TWIN CAM ® OVERSIZED VALVE SEATS (Machining required)

PART NO.

APPLICATION

VALVE TYPE

O.D.

I.D.

THICKNESS

No. 1342 No. 1343 No. 1344

EVO 1340 & Twin Cam ® EVO 1340 & Twin Cam ® EVO 1340 & Twin Cam ®

Exhaust

1.757” 2.008” 2.021”

1.410” 1.610” 1.590”

.430” .440” .420”

7

Intake Intake

SHOVELHEAD REPLACEMENT VALVE SEATS (No Machining required)

PART NO.

APPLICATION Stock Replacement Stock Replacement

VALVE TYPE

O.D.

I.D.

THICKNESS

No. 1340 No. 1341

Exhaust

1.944” 2.135”

1.570” 1.750”

.400” .400”

Intake

SHOVELHEAD/PANHEAD OVERSIZED VALVE SEATS (Machining required)

PART NO.

APPLICATION

VALVE TYPE

O.D.

I.D.

THICKNESS

No. 1340 No. 1341 No. 1344 No. 1346

Panhead Engines Panhead Engines

Exhaust

1.944” 2.135” 2.021” 2.163”

1.570” 1.750” 1.590” 1.750”

.400” .400” .420” .455”

Oversize Intake

Shovel / Panhead 1200cc & 1340cc Shovel / Panhead 1200cc & 1340cc

Intake

Exhaust

SPORTSTER ® OVERSIZED VALVE SEATS (Machining required)

PART NO. No. 1347 No. 1348 No. 1342A No. 1357

APPLICATION

VALVE TYPE

O.D.

I.D.

THICKNESS

Evolution ® Sportster ® 883 & 1100cc & 1200cc Exhaust Evolution ® Sportster ® 883 & 1100cc & 1200cc Intake

1.630” 1.880” 1.757” 2.068”

1.180” 1.439” 1.371” 1.750”

.385” .410” .315” .315”

Ironhead Sportster ® Ironhead Sportster ®

Exhaust

Intake

UNIVERSAL VALVE SEATS (Machining required)

Part No. No. 1358S

Application

Valve Type

O.D.

I.D.

Thickness

Universal Repair Seat

Both

1.820”

1.375”

.450”

39