James Gaskets Shovelhead Gasket Kit - TOP END Shovel 3 5/8" BIG Bore KIT 16770-… — Harley-Davidson Electra Glide, Super Glide, Low Rider (1970-1984)
James Gaskets Shovelhead top-end gasket kit for big-bore Shovel engines with 3 5/8" displacement. Complete kit uses precision materials and U.S. manufacturing to seal cylinder heads, barrels, and rocker covers without leaks.
Features
- Complete top-end gasket set
- Made in the U.S.A.
- Fits 3 5/8" big-bore Shovelhead engines
Specifications
- Brand: James Gaskets
- Manufacturer Part #: 16770-66-S
- Length: 7 in
- Width: 6 in
- Height: 0.45 in
- Weight: 0.166 lbs
Fitment
Fits Shovelhead engines with 3 5/8" big-bore specifications.
Frequently Asked Questions
What gaskets are included in this top-end kit?
This is a complete top-end kit for Shovelhead cylinders and heads. Check the parts list on the box for the exact components included.
Will this fit a stock Shovelhead, or only big-bore motors?
This kit is designed for 3 5/8" big-bore Shovelheads. Stock displacement engines may use a different part number.
Is installation straightforward?
Yes — James Gaskets are direct replacements that bolt in place of OEM gaskets. Standard gasket torque procedures apply.
Are these street-legal?
Yes. James Gaskets manufactures to OEM specifications and are legal for street use on any Shovelhead application.
| BRAND | James Gaskets |
| TYPE | Gaskets/Seals |
| SKU | 681-4746 |
| WEIGHT | 0.17 lb |