S&S CYCLE - 310-1378A - Cam Chest Kit for M8 - '17-'26 Harley-Davidson Electra Glide Police FLHTPI, Softail Low Rider ST FXLRST, Electra Glide Ultra Classic
S&S Cycle's 310-1378A cam chest kit pairs a precision-machined billet aluminum oil pump and cam plate, finished in blue anodize, with S&S premium tappets that are hand-fit for consistent lift. The tappets ride in billet aluminum cuffs with a hard-anodized black coating, built stronger than stock to resist distortion and keep tappets stable even under high-lift cam profiles. Independent scavenge sections and debris screens for the flywheel cavity and cam chest boost oil flow on both feed and scavenge sides, and the pressure relief valve adjusts with the unit installed. Fits '17-'26 Harley-Davidson M8 engines.
Features
- Oil pump and cam plate are precision-machined from billet aluminum with a blue anodized finish
- Passage plugs are removable for servicing
- Independent scavenge sections for the flywheel cavity and cam chest
- Debris screens in both scavenge pickups
- Increased oil flow capacity on both the feed and the scavenge sides
- Adjustable pressure relief valve is adjustable with the unit installed in the engine
- S&S premium tappets
- Billet aluminum tappet cuffs have a hard-anodized black coating and are stronger than stock to eliminate distortion and improves tappet stability in high-lift situations
- Made in the USA
- Includes cam chain tensioner.
- Will fit M8 with VVT.
Specs
- Intake Open: 7°
- Product Name: Camchest Kit
- Intake Duration: 227°
- Exhaust Lift at TDC: 0.097"
- Grind: 496 Series
- Intake Close: 40°
- Intake Lift: 0.485"
- Riding Style: Street
- Intake Lift at TDC: 0.072"
- Application: Oil Cooled
- Exhaust Lift: 0.485"
- Features: Chrome Pushrod Tubes
- Type: Chain Drive
- Units: Kit
- Exhaust Close: 15°
- Exhaust Duration: 243°
- Exhaust Open: 48°
Frequently Asked Questions - S&S CYCLE - 310-1378A - Cam Chest Kit for M8 - '17-'26 Harley-Davidson Electra Glide Police FLHTPI, Softail Low Rider ST FXLRST, Electra Glide Ultra Classic
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
