LS Swap Headers for 1982-1992 Chevy Camaro/Pontiac Firebird | 3rd Gen F-Body | Fits All GM LS/LSX V8 Engines

Fitment & Compatibility

Q1: Are these third gen Camaro headers for an LS swap or an original SBC?

A1: LS swap only. These headers are designed exclusively for GM LS-series V8 engines—LS1, LS2, LS3, LS6, LQ4, LQ9, and other LS/LSX variants. They will NOT work with the factory original small block Chevy (SBC), big block Chevy (BBC), or V6 engines that came in 1982-1992 Camaros and Firebirds. The LS engine has completely different exhaust port spacing and bolt patterns than the Gen I SBC. If you're keeping the original 305 or 350 TPI, you need SBC-specific headers, not these.

Q2: What third gen F-body vehicles do these headers fit?

A2: 1982-1992 Chevrolet Camaro and 1982-1992 Pontiac Firebird on the third gen F-Body chassis. That covers the entire third gen range—from the base 1982 sport coupe all the way through the 1992 25th Anniversary Heritage Edition. The chassis and engine bay layout didn't change enough over those years to affect header fitment. As long as you're swapping in an LS, the chassis side of the equation is covered.

Q3: Will these 3rd gen Camaro LS swap headers clear the steering shaft?

A3: On most setups, yes. These headers are designed around the LS swap motor mounts that position the engine in the factory location. If you're using offset mounts or have the engine pushed back for setback positioning, the driver side primary tubes can crowd the steering shaft. Some guys have reported needing to dimple a tube or slightly adjust the shaft routing. The key is making sure your engine placement matches what the headers were designed for—standard swap mounts, standard position.

Q4: Do these third gen Camaro headers work with a 4L80E or TH350/400 transmission?

A4: With a 4L80E or older Turbo 350/400, the bellhousing is larger than the 4L60E/700R4 that most LS swaps use. The bellhousing ears on those bigger transmissions may need to be clearanced—notched or ground down—so they don't hit the primary tubes. This is a known issue with third gen F-body LS swaps running larger transmissions. It's not a deal-breaker, but it's something you need to plan for. The 4L60E and T56 bolt up without this problem.

Q5: What size are the primary tubes and collector on these headers?

A5: These are long tube headers with 1-3/4" (1.75") primary tubes and a 3" collector. That sizing is ideal for most LS swaps making 350-550 hp. If you're building a higher-horsepower LS with a big cam, ported heads, or forced induction, you might want 1-7/8" primaries instead—but for a street-driven third gen Camaro with a typical LS1/LS3 swap, 1-3/4" is the sweet spot for torque and mid-range power.

Q6: Can I install these third gen Camaro headers with the engine in the car?

A6: It's possible, but pulling the engine makes the job ten times easier. The third gen F-body engine bay is workable, but it's not spacious. Getting the headers bolted up from underneath means working around the steering linkage, starter, and frame rails with limited wrench swing. Most experienced LS swappers drop the engine in with the headers already loosely attached, then tighten everything once the engine is mounted. If you're dead set on installing them with the engine in place, jack stands and a lot of patience are required.

Q7: Do these headers work with factory third gen Camaro motor mounts?

A7: No, because factory motor mounts are for the original SBC/V6, not an LS. You need LS-specific swap motor mounts for the third gen F-body chassis. The headers are designed around those swap mounts. If you use a different brand of swap mounts that positions the engine slightly differently, the header fitment may change. Most of the major swap mount kits (Holley, Hooker, Speed Engineering) position the LS in the same general location, so fitment is usually consistent across brands.

Q8: Will these third gen Camaro headers pass emissions?

A8: Not in California or any CARB state. These headers don't have a CARB Executive Order number, so they're not legal for street use where emissions testing is enforced. California Vehicle Code Section 27156 prohibits exhaust modifications that alter emissions controls. An LS swap itself already puts you in a gray area in most emissions states—the headers just add another item that won't pass a visual inspection. In non-emissions areas, nobody's checking.

Q9: Do I need an LS swap kit to use these headers?

A9: Yes. The headers are one piece of the puzzle. An LS swap into a third gen Camaro also requires swap motor mounts, a transmission crossmember or adapter, fuel system modifications, wiring harness conversion, and an exhaust system connecting the headers to the rear of the car. The headers are designed to work with most standard LS swap kits for the F-body chassis. If you're planning a full swap, the headers should be one of the last things you buy, not the first—figure out your engine placement first, then match the headers to it.

Q10: What exhaust system connects to these headers after the collector?

A10: The 3" collector outlet feeds into a 3" Y-pipe or dual exhaust system. Most third gen Camaro LS swaps run a Y-pipe that merges both sides into a single 3" pipe, then into a catalytic converter and cat-back. If you want true dual exhaust, you'll need to route two 2.5" or 3" pipes over the rear axle, which is tight on an F-body but doable. Some guys run side-exit exhaust right after the collectors for a more aggressive look and sound—search for "3rd gen Camaro side pipes" and you'll see plenty of examples.

Q11: Are these headers stainless steel or mild steel?

A11: They're made from T-304 stainless steel with a mirror-polished finish. That's good news for longevity—304 stainless resists rust far better than mild steel or coated headers, which is important if you drive your third gen in any weather other than sunny and dry. The polished finish looks clean in the engine bay too, although it will discolor to a gold/bronze tone near the collector after a few heat cycles. That's normal for stainless headers and doesn't affect performance.

Q12: Can I use these headers with a big block Chevy in a third gen Camaro?

A12: No. These are LS-specific headers only. A big block Chevy has a completely different exhaust port layout, wider block dimensions, and different bolt patterns. The flanges won't line up and the primary tube routing is wrong for a BBC. The manufacturer's fitment is explicit: GM LS-series V8 engines only. If you're running a big block in a third gen F-body, you need BBC-specific headers, and you'll probably need to customize the chassis routing anyway.