Camshafts
S&S CYCLE Camshaft Kit - Easy Start - MR103 Chain Drive - Twin Cam '07-'17 | Dyna '06
Brand: S&S CYCLE
SKU: P1424916158296
$540.95
$467.45
Taxes and shipping calculated at checkout.
MR103 Easy Start Camshaft Kit
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Product Details
Highlights
- Allows for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance.
- Designed as bolt-in cams for " engine with stock 9.7:1 compression ratio up to 10.5:1.
- More power across the rpm range best results from 2500 rpm - 5500 rpm.
- Includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, threat lock and instructions.
- Made in the USA.
- Works with stock, un-ported heads, but is great for S&S CNC ported heads.
- Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
- Not for models with OEM compression releases.
MR103 Camshaft Kit designed for '06 HD Dyna and 2007-'16 big inch engines with intake and exhaust modifications. Designed as bolt-in cams for CID engines with stock 9.7:1 compression ratio up to 10.5:1. Works well with stock, un-ported heads, but is great for S&S CNC ported heads. More power across the rpm range best results form 2500-5500 rpm. MR103CE, Twin Cam.
Specifications
| Application | Intake / Exhaust |
|---|---|
| Exhaust Close Imperial | 22 |
| Exhaust Duration Imperial | 252 |
| Exhaust Lift at TDC Imperial | 0.177" |
| Exhaust Lift Imperial | 0.585" |
| Exhaust Lobe Centerline Imperial | 104 |
| Exhaust Open Imperial | 50 |
| Grind | MR103 |
| Intake Close Imperial | 33 |
| Intake Duration Imperial | 226 |
| Intake Lift at TDC Imperial | 0.172" |
| Intake Lift Imperial | 0.585" |
| Intake Lobe Centerline Imperial | 100 |
| Intake Open Imperial | 13 |
| Model | Easy Start |
| Riding Style | Street |
| Type | Chain |
| Units | Kit |
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