PerTronix Dougs Headers D743 - Manual (Page 2)

Part No. 0110-003078
Page 2 of 3
Rev. 1 11-19-13 DSL
6. Remove any gasket material or any carbon deposits that remain on the head surface.
The use of a gasket removal agent will ease the removal of any gasket material.
We recommend the use of a sharp gasket scraper to remove the bulk of material and to
finish the operation with a sanding block to provide a clean flat sealing surface.
7. Apply a THIN film of Ultra Copper Hi-Temp Sensor-Safe Silicone Sealer to the header
side of the supplied gasket and glue it to the header. Masking tape can be used to help
stick the gasket to the manifold.
8. Apply a THIN film of Ultra Copper Hi-Temp Sensor-Safe Silicone Sealer to the header
side of the gasket.
9. Apply anti-seize to the header bolts.
10. Starting from below, work header through chassis into position. Note: Cars with
pressure valve and brake warning light switch mounted on the inside of frame may
have to be relocated to the top of the frame.
11. With header loose, replace starter. Reroute cable from the battery to starter to allow
maximum clearance on all header tubes.
12. Start all bolts with lock-washers. Use a 1-
1/8” bolt, flat washer and lock-washer at
notches in flange.
13. Tighten bolts evenly.
14. Replace dipstick tube and vacuum canister for the heat riser. Note: Discard the vacuum
canister on ’75 models.
RIGHT SIDE:
1. Remove the stock exhaust manifold and oil filter from block.
2. Remove any gasket material or any carbon deposits that remain on the head surface.
The use of a gasket removal agent will ease the removal of any gasket material.
We recommend the use of a sharp gasket scraper to remove the bulk of material and to
finish the operation with a sanding block to provide a clean flat sealing surface.
3. Apply a THIN film of Ultra Copper Hi-Temp Sensor-Safe Silicone Sealer to the header
side of the supplied gasket and glue it to the header. Masking tape can be used to help
stick the gasket to the manifold.
4. Apply a THIN film of Ultra Copper Hi-Temp Sensor-Safe Silicone Sealer to the header
side of the gasket.
5. Apply anti-seize to the header bolts.
6. Starting from below, work header through chassis into position (some models may
require the engine to be raised).
7. Start all bolts with lock-washers. Use a 1-
1/8” bolt, flat washer and lock-washer at
notches in flange.
8. Tighten bolts evenly. Reroute trans lines to clear header and modify or discard brace.
9. Replace oil filter adapter, making sure cooler lines do not touch header tubes.
10. Install the supplied reducers and connect to the exhaust system.
11. Connect the negative battery cable.