The following tips are for use with our TRI-Y, Quad-1 and Budget headers.

1. Start with a hot engine.
2. Disconnect negative battery terminal.
3. Remove stock catalytic converters, un-plug stock O2 sensors from plugs and disconnect EGR tube from passenger side manifold
4. Remove alternator. (Accessory belt, 2 bolts going through accessory bracket, 1 electrical plug, 1 “hot wire” to battery and 2 metal brackets going to exhaust manifold).
5. Passenger side: using pry bar or large flat head screwdriver, leverage metal heat shield/bracket away from the rear of the manifold and as close to the firewall as possible to allow better access to last manifold bolt. Remove stock manifold using basic tools (9/16” socket, 3/8” ratchet with various extensions and a cheater pipe (to slide over ratchet handle for breaking leverage). There are 6 bolts plus a couple nuts for the alternator brackets.
6. Drivers side: Remove stock manifold using basic tools (9/16” socket, 3/8” ratchet with various extensions and a cheater pipe (to slide over ratchet handle for breaking leverage). There are 6 bolts.
7. Using a wire brush or wire wheel and 90 degree air drill, clean the surface of the head around the exhaust ports.
8. *A    Install drivers side header from above for TRI-Y’s and below for Quads. After header is in place and all bolts are tight, make sure the brake line near the bottom of the fender and the frame area are clear of the header tubes. If not, use a large pry bar or flat head screwdriver and gently leverage the brake line away by wrapping a towel or cloth around the end and inserting the end between the header and brake line. ¼” clearance is fine.
9. *B  & *C     Install passenger side header from above for TRI-Y’s and below for Quads.
10. Hook-up EGR tube to passenger header, install high-flow converters or extended hook-up pipes between headers and exhaust.
11. Install alternator using at least the short bracket going to the stock stud in the first hole on the head. (In front of the header flange). Connect electrical plug, “hot wire” and belt.
12. Connect negative battery terminal.
13. Start engine and check for exhaust leaks.
14. Drive car and have some fun.
15. Check and re-tighten header bolts after every heat cycle for at least a week. Gaskets will compress and bolts need to be tightened to compensate.

*A   Check brake line clearance, if needed, gently grasp lines and pull them towards fender, a ¼” clearance is fine.

*B   Check  air conditioning line clearance, if needed, gently grasp lines and pull them towards fender, a ¼” clearance is fine.

*C    Dipstick  will need to be removed for Quad headers but can be left in place for TRI-Y’s. A slight bend will need to be made to keep the dipstick away from the headers.

 * Quad-1 headers may require the removal of the #7 and #8 spark plugs in order to get the header into place from below. Have someone hold the header while you install the spark plug and wire BEFORE the header is bolted down.

Bolt pattern:   Start at least 2 header bolts (easiest to get to at each end). Then start the remaining 4 bolts and hand tighten all using a 12 point 3/8” box end wrench. (Long and short Snap-On offset works best). Bolts should be tightened from the center two and work outwards towards the end of the flange, alternating from left to right. (Inside left, inside right, middle left, middle right, outside left, outside right, and so on until all bolts are tight).

The above is just a guide so use your judgment and take your time.