COMP Cams vs BTR vs Texas Speed — The LS Cam Brand Comparison

TL;DR: Put the three brands' equivalent-stage LS grinds side by side and they land within 3–7 degrees of duration and about .015" of lift of each other. None of these companies has a secret lobe. What actually separates them is how the catalog is organized — COMP sells profile families that span every engine it grinds for, while BTR and Texas Speed sell stage-numbered packages built around one platform and one drivetrain assumption. Pick the brand whose catalog logic matches how much you already know about your own build, then pick the grind on duration and LSA. Brand loyalty is the least useful input in this decision.

The three catalogs, side by side

Every number below is the manufacturer-stated spec carried on our own listings for these parts. Duration is at .050" tappet lift; lift is at the valve with the stock 1.7:1 rocker ratio.

Cathedral-port truck grinds (LM7 5.3 / LQ4 6.0, Gen III 24x)

Cathedral-port car grinds (LS1 / LS6 5.7, Gen III 24x)

Rectangle-port grinds (LS3 / L92 6.2, Gen IV 58x)

Powerband ranges are manufacturer marketing figures, not dyno-verified boundaries, and every one assumes the rest of the combination is matched. They are useful for ranking grinds against each other inside these tables and close to useless as absolute numbers.

Read the three tables and the pattern is obvious: the brands overlap almost completely. BTR Stage 3 Truck at 221/230 on a 114 and Texas Speed Stage 3 Truck at 224/230 on a 113 are, for practical purposes, the same camshaft. Three degrees of intake duration and one degree of LSA is not something you will feel from the driver's seat, and it sits inside the variation you would see measuring two examples of the same part number on different fixtures.

So stop comparing the grinds. Compare the catalogs.

What actually separates the three brands

COMP Cams sells lobe families, not applications

COMP's LS catalog is organized around profile families that exist across every engine COMP grinds for — XFI, XER, LSR, Thumpr. The XFI family is the same lobe philosophy whether you buy it for an LS1 or a small-block Ford; the engine-specific part number selects the core and the phasing, not the character.

That has one practical consequence: COMP expects you to already know what you want. The catalog will happily sell you a 230/238 on a 114 for a bone-stock 5.3 with a stock converter, because nothing in the part number encodes an opinion about your drivetrain. The XFI RPM 224/232 in the table above is a genuinely excellent street grind. The XFI NSR 230/238 two rows below it will make a stock-converter truck miserable. Both are "COMP XFI."

COMP is also the only one of the three with a character grind in the catalog — the Thumpr, at 227/241 on a 107 LSA. That LSA is the entire product. Seven degrees tighter than everything else on this page buys the lumpy idle people are describing when they say "I want it to sound like a cam," and it costs idle vacuum, idle quality under load, and a lot of tolerance for the wrong converter. It is not an error in the table; it is a deliberately different answer to a different question.

COMP also carries the deepest AFM-delete-specific LS line of the three — grinds sold explicitly as the cam half of a displacement-on-demand delete rather than as a power upgrade that happens to be non-AFM. If deleting AFM is the actual reason you are buying a cam, that matters. Our complete AFM delete kit guide covers what else has to come out of the engine on the same teardown.

Browse the full LS camshaft collection →

BTR sells a ladder, and the rungs are honest

Brian Tooley Racing's LS catalog is a numbered ladder per platform: Stage 2, 3 and 4 for trucks; Stage 2 and 3 for N/A cars; LS3 Stage 2 and 3 for rectangle-port; VVT Stage 2 and 3 for Gen IV phaser engines.

The useful thing about the ladder is that the rungs are spaced far enough apart to mean something. Stage 2 Truck (216/224) to Stage 3 Truck (221/230) is five degrees and .021" of lift. Stage 3 to Stage 4 (227/236) is another six degrees and .014". Each step is a real change in what the rest of the combination has to be, and the steps are consistent enough that "go up one stage" is actionable advice rather than marketing.

BTR is also the brand most willing to publish a grind that stays inside a near-stock combination. Stage 2 Truck on a 114 LSA is a cam you can genuinely run with a stock converter and stock gears in a 5.3 and still have a truck that drives normally. Not every brand's entry-level cam is that conservative.

Where BTR pulls ahead outright is VVT coverage. It is the only one of the three with a Stage 3-level grind engineered to retain factory cam phaser operation on Gen IV VVT truck engines instead of requiring a VVT delete. On an L94 or LY6 that is a real fork in the road: the phaser-retaining path keeps the factory timing cover and the factory tune structure intact, while the delete path adds a phaser lockout, a non-VVT timing set, a front cover change and a considerably bigger tune job.

Shop LS Gen IV parts →

Texas Speed sells the low end nobody else does

Texas Speed's LS ladder looks superficially like BTR's, and through the middle of the range it basically is — TSP Stage 3 Truck and BTR Stage 3 Truck are the same cam within measurement noise.

The difference is at the bottom of the range. TSP is the only one of the three brands in our catalog offering LS truck grinds under 215 degrees: the PRC Torque Truck at 210/218 on a 114 and the VVT Torquer Truck at 212/220 on a 114. Both list a powerband opening at 1600 rpm and signing off at 5800.

That is a real product for a real customer, and it is the customer most likely to buy the wrong cam. A 6.0 that tows, a 5.3 with 3.42 gears and a stock converter, a work truck that needs to feel stronger at 2,000 rpm and does not care what happens at 6,000 — those builds are actively hurt by a 224/230. Every degree of intake duration added above stock pushes torque up the rpm scale and bleeds cylinder pressure at the bottom, because the intake valve closes later and less of the compression stroke actually compresses. A tow truck with a Stage 3 cam is a truck that got slower everywhere its driver uses it.

Most brands do not bother with this segment because it does not produce impressive dyno headlines. TSP does, and if you tow, that is the reason to shop TSP first.

Shop cathedral-port LS parts →

How to actually choose

Gate 1 — Generation and reluctor first. Gen III is 24x, Gen IV is 58x, and they are not interchangeable. A Gen IV engine also has to be resolved as VVT or non-VVT before any part number means anything. Get this wrong and no amount of brand comparison saves the order. Confirm on the fitment page.

Gate 2 — Port style. Cathedral-port (LS1, LM7, LQ4, LY6) and rectangle-port (LS3, L92, L94) heads carry different valve sizes and different spring packages, which sets different lift ceilings. A rectangle-port grind is not automatically wrong on a cathedral head, but the lift figure has to be checked against that specific head's installed height and guide clearance rather than assumed. Our guide to reading head flow numbers explains why the port that flows more is not always the port you want. Rectangle-port parts →

Gate 3 — Drivetrain, honestly. Stock converter and stock gears puts you in the 210–218 band, which is TSP territory. A 2,800-stall converter and 3.73s opens the 221–228 band, where all three brands overlap and the choice genuinely does not matter much. Anything past 230 wants a converter, gears, and a tolerance for the idle. Our 5.3 truck cam buyer's guide works this gate in more depth.

Gate 4 — Then, and only then, pick a brand. If you already know the duration and LSA you want, COMP's catalog is the most granular way to get exactly that. If you want the package decision made for you inside one platform, BTR's ladder is the cleanest. If the truck tows, start at TSP.

What the cam swap actually needs besides the cam

None of these grinds is a drop-in on a stock valvetrain above roughly .570" lift, and all but two of the grinds in the tables above exceed that.

• Valve springs — stock LS springs are not rated for the lift or the rpm any of these cams ask for. Spring failure is the single most common LS cam-swap postmortem. Valve springs →
• Pushrods — measure after the heads are torqued down. Do not order length from a chart. Pushrods →
• Lifters — an AFM or DOD engine needs non-AFM lifters and non-AFM trays as part of the job, not as an upsell. Lifters →
• Timing set — the cam is out and the front of the engine is open. Replacing a 150,000-mile chain later means paying for this teardown twice. Timing components →
• Tune — every grind on this page requires one. A cammed LS on the stock tune will run, badly, and will usually set lean codes at idle.

Frequently asked questions

Is BTR better than Texas Speed? No, and the specs say so. BTR Stage 3 Truck (221/230, 114 LSA) and Texas Speed Stage 3 Truck (224/230, 113 LSA) are the same camshaft for any practical purpose. Choose on availability, on the supporting-parts package each sells alongside the cam, and on whether you specifically need TSP's sub-215 tow grinds or BTR's phaser-retaining VVT grinds.

Why does the COMP Thumpr use a 107 LSA when everything else is 112–114? Because the idle sound is the product. Tightening the lobe separation angle increases valve overlap, and overlap at low rpm is what produces the lopey idle. It costs idle vacuum — which matters if the truck runs vacuum-assisted brakes — and it narrows how forgiving the cam is about converter stall. Buy it if you want the sound and have the converter to support it.

Do any of these cams work with factory VVT? Only the grinds explicitly sold as VVT-compatible. In our catalog those are the BTR VVT Truck Stage 2 and VVT Stage 3 L92, the Texas Speed VVT Torquer Truck, and COMP's XFI AFM Delete grind in its VVT applications. Every other grind on this page requires a VVT delete: a phaser lockout, a non-VVT timing set, and the tune changes that go with them.

Can I run a rectangle-port cam in a cathedral-port engine? Mechanically the camshaft does not know what the heads look like. The real constraints are lift versus the cathedral head's installed spring height and valve guide clearance, and duration versus the smaller port's ability to use it. Check the specific head, do not infer from the part title.

What is the biggest cam I can run on a stock converter? Roughly 215 degrees at .050" on the intake, with a 112 LSA or wider. Above that the torque curve moves up past where a stock converter can couple efficiently, and the vehicle feels slower in normal driving even while it makes more peak power. This is exactly why the TSP tow grinds exist.

Do I need new lifters if my engine does not have AFM? Not strictly, but the cam is out and the lifters are already accessible. Lifters are a wear item riding directly on the lobes you just paid for, and a lifter that fails on a fresh cam usually takes the cam with it.

Does a bigger cam always mean more power? More peak power, often. More usable power, frequently not. Duration trades bottom-end torque for top-end flow, and if your converter, gears and rear-end ratio never put the engine in the new powerband, you have paid for horsepower you will not reach.

Structured data stubs

FAQPage — the seven Q&A pairs above map directly to mainEntity / Question / acceptedAnswer nodes.

Article — headline from the H1, author Core Powertrain Parts Tech Team, about LS camshaft selection, mentions the three brand entities.