Hedman Hedders has been manufacturing quality headers in the USA since 1954, and they've been manufacturing and refining these Jeep Wrangler (YJ), SB Chevy V8 engine swap specific header model for over 20 years. Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your Small Block Chevy exhaust system to bolt up, even if it is not perfectly aligned with the header collectors.
These uncoated, MID-LENGTH TUBE headers are designed specifically for installing a Small Block Chevy 283-400 (Gen 1) engine into a 1987-1995 Wrangler (YJ). The smooth 1-1/2 in. tube design provides ample exhaust flow to let your Wrangler's transplanted 283-400 SB Chevy engine breathe easy, and significantly improve torque over factory manifolds.
These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. For protection against the element and lower underhood temperatures, these headers are also available with a silver or black ceramic-metallic finish.
Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed.
Hedman Hedders is so confident in the quality of its headers that these headers are factory backed by a Limited Lifetime Warranty.
Hedman Hedders Mid-Length Swap Headers For Chevy 283-400 into 87-95 Wrangler 69640
Specifications:
| Description_DEF | [B@18011c14 |
| Description_DES | [B@7990a01a |
| Description_EXT | [B@52a69835 |
| Description_FAB | [B@27d1f650 |
| Description_FAB | [B@3720af02 |
| Description_FAB | [B@4bcc498c |
| Description_FAB | [B@2d4d17f0 |
| Description_FAB | [B@586177f |
| Description_FAB | [B@37ecf072 |
| Description_INV | [B@1e455f2a |
| Description_MKT | [B@5b723985 |
| Description_SHO | [B@6e7af07b |
| Title | HEDMAN HEDDERS 86-95 WRANGLER 265-400; 1-1/2 IN. TUBE DIA; 2-1/2 IN. COLL; SHORTY DESIGN- UNCOATED |
| Tube Diameter | 1-1/2 in. |
| Reducers Included | Yes |
| with EGR | No |
| Weld-Up | No |
| Tuned | No |
| Bolts/Studs Included | Yes |
| Catalytic Converter(s) Included | No |
| Collector Bolts Included | Yes |
| Crossover Pipe Included | No |
| Gasket Or Seal Included | Yes |
| Header Fasteners Included | Yes |
| Installation Hardware Included | Yes |
| Motor Mounts Included | No |
| Mounting Hardware Included | Yes |
| Y-Pipe Included | No |
| Variations | 69646, 69648 |
| Quantity | Sold as a pair. |
| Primary Tube Gauge | 16g |
| Primary Tube Diameter (in) | 1.50 in. |
| Package Contents | Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware |
| Header Material | Mild Steel |
| Header Finish | Uncoated |
| Cylinder Head Port Shape | Round |
| Cylinder Head | Fits Factory GM Aluminum Angle Plug and Straight Plug Heads. |
| Header Construction | MILD STEEL- Standard-Duty |
| Replacement Gasket | 27500 |
| Replacement Head Flange Gasket | 27500 |
| California Proposition 65 | WARNING: Cancer. For more info visit www.P65Warnings.ca.gov |
| with A.I.R. System | No |
| Tube Size | 1-1/2 in. |
| Tube Style | Mid-Length |
| Air Conditioning | Yes |
| Automatic Transmission - Column | Yes |
| Automatic Transmission - Floor | Yes |
| Manual Transmission - Column | No |
| Manual Transmission - Floor | Yes |
| Tube Material Thickness | 16g |
| Material | Mild Steel |
| Tube Design | Standard |
| Tube Length | Mid-Length Tubes |
| Flange Thickness | 0.3125 in. |
| Collector Attachment | 2-1/2 in. |
| Collector Diameter | 2-1/2 in. |
| Collector Size | 2-1/2 in. |
| Exhaust System Dia | 2-1/2 in. |
| Reducer Outlet Size | 2-1/2 in. |
| Notes | 87-95 Jeep Wrangler Chev. 283-400 Swap |
| Collector Style | BALL and SOCKET Style (Gasketless) |
| Contents | headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware |
| Header Style | Mid-Length Tube |
| E.O. # | No |
| Emissions Notes | Not legal for sale or use in California, or on pollution controlled vehicles. |
| Header Port Shape | Round |
| Port Shape | Round |
| Flange Style | Standard |
| Finish | Uncoated |
| Finish Type | UNCOATED Mild Steel! Shipped with Temporary Paint. |
| Engine Notes | Will fit Angle Plug Heads (Chevy Aluminum only, L98) |
| Power Steering | Yes |