
Below is a list of vehicles that our R&D Department is currently in need of. If you Live in the Southern California area*, and meet the other requirements shown, we may be able to use your vehicle for test fitting and/or CARB testing.
Hedman does not sell direct, but if we use your car for prototyping or testing, you will receive a set of installed hedders at no charge.
Please read through these simple program requirements, and if your vehicle is listed, please email our R&D project co-ordinator, Kevin Vandergriff at kevinv@hedman.com.
| CHEVROLET / GMC | |
| YEARS | VEHICLE INFORMATION |
| 1968-81 |
1/2 - 3/4 TON Trucks, Suburban 4WD with a 396-454 Engine |
| 1969 |
Chevy Camaro with a 572 GM Crate Engine (GA. Plant)* |
| 1981-87 | Chevelle, Malibu or El Camino with a 305-350 (5.0 5.7 Liter) Engine |
| 1994-95 | Camaro, Firebird with a 305-350 (5.0-5.7 Liter) Engine |
| 1994-03 |
S10, S15, Blazer, Jimmy, Sonoma with a 4.3L V6 Engine |
| 1996-02 | Z28 Camaro, Trans-AM, Firebird with a 5.7 LS1 Engine |
| 2001-05 |
3/4 - 1 TON Pickups, Avalanche, Denali, Sierra, Silverado, Suburban, Yukon XL with a 8.1L Engine |
| 2002-05 |
Trailblazer, Envoy, Olds Bravada with a 4.2L L6 Engine |
|
DODGE |
|
| YEARS | VEHICLE INFORMATION |
| 1997-03 |
3/4 & 1 TON RAM with a 8.0L V10 Engine |
| FORD | |
| YEARS | VEHICLE INFORMATION |
| 2005-06 | F-150, F-250 (light duty), Expedition with a 5.4 3 Valve V8 Engine |
| OLDSMOBILE | |
| YEARS | VEHICLE INFORMATION |
| 1968-72 | Cutlass, 442 with a 400-455 Engine |
| 1970-72 | Cutlass Supreme with a 350 Engine |