Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 in. flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.
Specifications:
| Description_ASC |
Breaking in an engine with ceramic coated headers WILL result in damage to the coating and will VOID all warranties. Ceramic coated headers require several heat cycles to fully cure before they will withstand extreme heat. Flowtech recommends using cast iron exhaust manifolds or old headers to break in new engines to avoid coating damage. Please call Flowtech tech service at 270-781-9741 for additional information regarding ceramic coated exhaust products. The use of header wraps can cause the header tubes to crack or rust due to excessive heat and moisture build-up. Flowtech does not recommend the use of header wraps as this will void the warranty.
Recommended replacement gasket - Mr. Gasket part# 453
Must modify exhaust system to retain catalytic converters. |
| Description_DEF |
Exhaust Header |
| Description_EXT |
Fits 1968-1974 Oldsmobile Cutlass (not Supreme)/442 350-403ci Standard Headers Primary Tube Collector Size 1.75 in. x 3 in. |
| Description_DES |
Flowtech Long Tube Header - Ceramic Coated |
| Description_FAB |
Fuel Economy From The Engine |
| Description_FAB |
Leak Test For Max Performance |
| Description_FAB |
Ceramic Headers |
| Description_FAB |
Rust And Corrosion Resistance |
| Description_FAB |
Mandrel-Formed Power Plenum |
| Description_FAB |
Leak-proof O-Ringed Port Seals |
| Description_FAB |
Include All Mounting Hardware |
| Description_SHO |
Exhaust Header |
| Description_KEY |
olds; oldsmobile; cutlass; 442; header |
| Description_MKT |
Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 in. flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance. |
| Description_INV |
HDR CRMC 68-74 OLDS 350-403 |
| Collector Tube Size |
3.000 in. |
| Port Shape |
Round |
| Bolt size |
3/8-16 x 3/4 |
| Engine |
Oldsmobile V8 |
| Header Finish |
Silver Ceramic |
| Tube Material |
Mild Steel |
| Application |
Automotive |
| Tube Direction |
Down Swept |
| Brand |
Flowtech |
| CARB (California) Compliant |
No |
| Emission Code |
4 |
| Coated Finish |
Metallic Ceramic |
| Collector Diameter |
3.000 in. |
| Engine Make/Size |
Olds 350-403 |
| Material |
Mild Steel |
| Primary Tube Diameter |
1.750 in. |
| Tube Diameter |
1.750 in. |
| WARNING CA Proposition 65 |
Yes |
| WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Header Style |
Long Tube |
| Primary Tube Dia. |
1-3/4 inch |
| Product Type |
Headers |
| Warning |
California Proposition 65 |
| Length |
18.0000 |
| Width |
14.0000 |
| Height |
42.0000 |
| Weight |
34.0000 |
