GM HEI Distributor Vacuum Advance Block-Off Plate - Clockwise Rotation
GM HEI Distributor Vacuum Advance Block-Off Plate - Clockwise Rotation
SKU: SKU: JM6914
In stock
Product Details
Features
- Locks out vacuum advance for fixed, consistent ignition timing
- Direct bolt-on fit — no welding, drilling, or modification required
- Designed for standard clockwise-rotation GM HEI distributors
- Compatible with 6- and 8-cylinder GM HEI applications
Description
Lock out the vacuum advance on your GM HEI distributor with this direct bolt-on block-off plate from Top Street Performance. Designed for standard clockwise-rotation TSP and GM HEI distributors, this plate installs in place of the vacuum advance canister, eliminating unwanted timing variation for racing and performance applications where fixed timing is required. No welding, drilling, or modification needed — it bolts directly into place for a clean, professional result. Compatible with 6- and 8-cylinder applications.
Specs
| Color | Silver |
| Distributor Type | HEI |
| Length | - |
| Material | Steel |
| Material Thickness | - |
| Mounting Hole Quantity | 3 |
| Rotation | Clockwise |
Engine Fitment
COMPATIBLE WITH
Universal — verify distributor rotation direction before ordering
NOTES
• TSP and GM High Energy Ignition (HEI) distributors — clockwise rotation
• 6-cylinder and 8-cylinder GM engines equipped with HEI distributor
• Not compatible with counter-clockwise (reverse rotation) HEI distributors
Q&A
Emissions Notice
This product does not affect vehicle emissions and is not subject to emissions compliance regulations.
GM HEI Distributor Vacuum Advance Block-Off Plate - Clockwise Rotation
Lock out the vacuum advance on your GM HEI distributor with this direct bolt-on block-off plate from Top Street Performance. Designed for standard clockwise-rotation TSP and GM HEI distributors, this plate installs in place of the vacuum advance canister, eliminating unwanted timing variation for racing and performance applications where fixed timing is required. No welding, drilling, or modification needed — it bolts directly into place for a clean, professional result. Compatible with 6- and 8-cylinder applications.
COMPATIBLE WITH
Universal — verify distributor rotation direction before ordering
NOTES
• TSP and GM High Energy Ignition (HEI) distributors — clockwise rotation
• 6-cylinder and 8-cylinder GM engines equipped with HEI distributor
• Not compatible with counter-clockwise (reverse rotation) HEI distributors
SPECIFICATIONS
Color: Silver
Distributor Type: HEI
Length: -
Material: Steel
Material Thickness: -
Mounting Hole Quantity: 3
Rotation: Clockwise
