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CAMS FOR 48-84 BIG TWIN
Features
- More mid-range and top-end power for street and drag bikes. These cams work with solid or hydraulic lifters, and the idle remains unaffected up to 6000 rpm with stock valve springs.
- Cams bolt into 48-84 Big Twin engines with no head work
- Spring travel and clearance, plus clearance at main bearing boss must be checked on 80 and later models
- Bolt-in street cams have an “A” intake and a long duration exhaust for cooler running and high-end power
- Suitable for hydraulic lifters
- The cam for modified or mildly stroked 48-84 Big Twin models
- Spring spacing required, and clearance at main bearing boss must be checked
- Offer extra strong mid- and top-end ranges
- A hydraulic version of Andrews “B” grind cams, for 48-84 Big Twin models
- Most are bolt-in, but spring spacing may be required
- Best production cam made for big street engines
- Strokers from 84 to 96 inches will really turn on this cam
- Broad torque range from 2000 to 7000+ rpm
- For mild street applications
- Add more power throughout rpm range and maintain a smooth idle
- Bolt in with no head work
- Hotter version of “B” grind
- Great street cam, especially for 84/88-inch strokers with maximum torque from 2500 to 6500 rpm
Images
“A” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199316 | For L77-84 Shovelhead (except 80-81 models) | $180.95 |
| DS-199310 | For 70-E77 Shovelhead | $180.95 |
| DS-199300 | For 48-69 Shovel, Panhead | $180.95 |
“AB” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199328 | For L77-84 Shovelhead (except for 80-81) | $180.95 |
| DS-199347 | For 70-E77 Shovelhead | $180.95 |
| DS-199317 | For 48-69 Shovel, Panhead | $180.95 |
“B” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199318 | For L77-84 Shovelhead | $180.95 |
| DS-199315 | For 70-E77 Shovelhead | $180.95 |
| DS-199305 | For 48-69 Shovel, Panhead | $180.95 |
“BH” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199299 | For L77-84 Shovelhead | $180.95 |
| DS-199298 | For 70-E77 Shovelhead | $180.95 |
| DS-199297 | For 48-69 Shovel, Panhead | $180.95 |
“C” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199314 | For L77-84 Shovelhead | $180.95 |
| DS-199313 | For 70-E77 Shovelhead | $180.95 |
“J” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199303 | For L77-84 Shovelhead | $180.95 |
| DS-199302 | For 70-E77 Shovelhead | $180.95 |
| DS-199301 | For 48-69 Big Twin | $180.95 |
“6” Grind Cam
| Part Number | Description | Suggested Retail |
|---|---|---|
| DS-199311 | For L77-84 Shovelhead | $180.95 |
| DS-199309 | For 70-E77 Shovelhead | $180.95 |
| DS-199308 | For 48-69 Big Twin | $180.95 |
Descriptions and notes
On late 77 and later engines, the pitch diameter on the camshaft, pinion gear and the breather valve gear was changed. These components are not interchangable with earlier-style components unless replaced in sets only. Late 77 and later gear sets are indentified by a circular groove machined in the outer face of the cam gear.
This item appears on page 394 of the Fatbook