JEGS
GM LS Engine Swap Headers for 1964-1988 GM A/F/G/X Body [Polished Finish]
555-300172
Product Q&A
View Now
![GM LS Engine Swap Headers for 1964-1988 GM A/F/G/X Body [Polished Finish]](http://www.jegs.com/images/photos/500/555/555-300172.jpg "GM LS Engine Swap Headers for 1964-1988 GM A/F/G/X Body [Polished Finish]")
Items You Need
LS
JEGS 555-300172 GM LS Swap Header Features:
- Mandrel bent tubing
- Heavy-Duty 3/8 in. thick flanges to prevent warpage
- O2 sensor bungs welded on both collectors
JEGS 555-300172 GM LS Swap Headers Include:
- (12) M8-1.25 x 25.4 mm (1 in.) UHL with 13 mm Hex Flange Head
- (2) LS Header Flange Gaskets
JEGS 555-300172 Recommended Engine Mounts:
- JEGS LS Engine Swap Motor-Mount Adapters, Adapts Small Block Chevy Motor-Mounts to LS-Series Engine 555-50538
- JEGS Solid Engine Mounts, Small Block Chevy 555-50511
JEGS 555-300172 Vehicle Fitment:
- 1964-1972 Buick Skylark
- 1964-1977 Chevy Chevelle
- 1964-1988 Chevy El Camino
- 1970-1988 Chevy Monte Carlo
- 1964-1977 Oldsmobile Cutlass
- 1964-1988 Pontiac Lemans
- 1964-1972 Pontiac GTO
- 1977-1988 Pontiac Grand Prix
- 1970-1981 Chevy Camaro
- 1970-1981 Pontiac Firebird
- 1978-1988 Buick Grand National
- 1978-1988 Chevy Malibu
- 1975-1979 Chevy Nova
FAQ
Are LS headers interchangeable?
Yes, JEGS headers like the 300172 are interchangeable for LS engines, providing compatibility across various LS-powered vehicles, including G-body LS swap applications.
What's the best LS engine to swap?
The best LS engine for a swap depends on your performance goals and application. Common choices include the LS1, LS3, and LS7, each offering unique features for different needs.
Is it worth upgrading headers?
Absolutely. Upgrading to JEGS headers, such as the 300172, enhances exhaust flow, improving engine efficiency, power, and sound. It's a worthwhile investment for any LS engine enthusiast.
How much HP does long tube headers add to LS1?
Long tube headers, like the JEGS 300172, can add significant horsepower to an LS1 engine, with gains often ranging from 10 to 25 horsepower. Actual results may vary based on other modifications and tuning.
Specifications:
What brand are they
79 Malibu L92/4L80 swap with Holley engine mounts and trans crossmember which set it all back about an inch. Will these fit?
I’ve seen conflicting info on the Q + A, annd although it’s not listed as a year of fitment, will these fit 1987 Cutlass Supreme LS1 swap??
Would these fit a 89 Silverado with a 5.3 Ls swap
Will this fit with a lq4 on a 68 cuttlass and 4l80?
Do they fit 1987 Monte Ls?
Will these fit a 87 cutlass salon with a 5.3 ls swap
Do they fit on a 94 gmc c1500?
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.