Ram TRX Horsepower: 702 vs 777 and What the Extra 75 Actually Does
The original TRX made 702 hp and the 2027 SRT TRX makes 777 from the same 6.2L supercharged HEMI. This is what each number is, how the gap breaks down, and what it is honestly worth to a buyer.
The 2021-2024 Ram 1500 TRX makes 702 hp and 650 lb-ft from its 6.2L supercharged HEMI V8. The 2027 Ram 1500 SRT TRX makes 777 hp and 680 lb-ft from the same engine family. That is a gap of 75 hp and 30 lb-ft, and what it actually buys you on the road is a narrower answer than the spec sheet makes it look.
Same engine, more of it
Both trucks run a 6.2L supercharged HEMI V8. This is not a different architecture, a different displacement, or a different fuel strategy dressed up with a new badge. Ram carried the same basic engine family from the Ram 1500 TRX into the Ram 1500 SRT TRX and found more output out of it.
What Ram actually changed inside the engine or the supercharger to find the extra 75 hp has not been confirmed by the factory, and we are not going to guess at a mechanism just to fill the paragraph. No supercharger pulley size, no boost pressure figure, no compression change, nothing on that front is verified yet. If Ram publishes the technical breakdown, we will update this piece. Until then, the honest position is that the destination is confirmed and the route is not.
The gap, in the actual numbers
| 2021-2024 TRX | 2027 SRT TRX | Difference | |
|---|---|---|---|
| Horsepower | 702 hp | 777 hp | +75 hp |
| Torque | 650 lb-ft | 680 lb-ft | +30 lb-ft |
| 0-60 mph | 4.5 sec | not yet published | unknown |
That 4.5 second 0-60 for the 2021-2024 truck is a real, verified figure. The 2027 SRT TRX has been in customer hands for a matter of weeks. Nobody has published an independently verified 0-60 or quarter-mile time for it yet, so we are not printing one, and anyone who tells you a specific number right now is guessing or repeating a guess. When credible independent testing lands, expect it to show up on the 2027 Ram SRT TRX what changed page along with everything else that is still unsettled about the new truck.
Why torque is the number that matters more
Horsepower sells the spec sheet. Torque is what you feel when a 6,300-plus pound truck needs to move.
Peak horsepower is a function of both torque and engine speed, so a bigger torque number, especially one that arrives low in the rev range the way a supercharged engine's does, is what makes a heavy truck feel responsive off idle instead of just fast once it is already spinning. That +30 lb-ft on the SRT TRX, on paper, should show up as slightly stronger initial shove: quicker rollout from a stop, less need to wind the engine before the transmission has something worth shifting.
That is an argument, not a measurement. Nobody has strapped a 2027 SRT TRX to a dyno and published a full torque curve, so we cannot tell you whether that 30 lb-ft arrives at the same rpm as the 2021-2024 truck's peak, arrives earlier, or is just a slightly taller ceiling on the same shape of curve. The direction of the argument is sound. The size of the real-world effect is not something anyone has quantified yet.
What 75 hp is worth against the truck's own numbers
Put the horsepower gap next to numbers Ram has actually published for the 2021-2024 TRX and it shrinks fast. That truck's max tow rating is 8,100 lb and its max payload is 1,310 lb, numbers set as much by frame, brakes, cooling, and axle hardware as by the engine's output. Ram has not published updated tow and payload figures for the 2027 SRT TRX as part of the verified spec set here, so we are not assuming the extra power moved those numbers at all, in either direction.
That is the pattern worth remembering with any horsepower increase on a truck this heavy: more power at the crank does not automatically mean more truck. It can mean quicker off the line, or a stronger midrange pull when passing at highway speed. It does not by itself mean more payload, more tow capacity, or a faster truck once you factor in gearing, tire size, and everything else that turns a dyno number into a stopwatch number.
Does the extra 75 hp matter for a buyer
If you are choosing between a used 2021-2024 TRX and a new 2027 SRT TRX, the horsepower gap is real but it is not the deciding factor by itself. A well-sorted 702 hp truck on the right tires, with the supercharger and drivetrain in good health, is not a truck that feels underpowered. The 777 hp truck should feel stronger in a direct back-to-back, particularly off idle where that extra 30 lb-ft lives, but "should feel stronger" is not the same claim as a verified number, and we are not going to dress it up as one.
Where the two trucks actually diverge for a buyer right now is price and unknowns, not raw output. Live listings on this site put the average 2021-2024 TRX between roughly $69,500 for a 2021 and $94,600 for a 2024, depending on year and miles, while the average 2027 SRT TRX sits around $110,300. You are paying a real premium for the new truck, and part of what you are buying is a genuine 75 hp bump, and part of it is a brand-new platform with no failure history yet, no owner cost data, and no independent testing beyond what Ram itself has released.
If the horsepower number is the only thing pulling you toward the new truck, it is worth reading the used TRX buying guide and the live market data on TRX pricing first. A clean, well-documented 2021-2024 truck at $70,000-85,000 with 702 hp on tap is a known quantity in a way the 777 hp truck is not yet, and that gap in confidence is worth more to most buyers than 75 hp on a spec sheet.
The short version
- 2021-2024 Ram 1500 TRX: 702 hp, 650 lb-ft, verified 4.5 second 0-60. 2027 Ram 1500 SRT TRX: 777 hp, 680 lb-ft, same 6.2L supercharged HEMI family, no published 0-60 yet.
- The gap is +75 hp and +30 lb-ft. What Ram changed internally to get there has not been confirmed by the factory, so nobody outside Ram can tell you the mechanism honestly.
- Torque, not horsepower, is the number more likely to change how the truck feels off the line in a vehicle this heavy, but that is an argument about physics, not a measured result for the 2027 truck.
- Set the horsepower gap against verified numbers you can actually use, like the 2021-2024 truck's 8,100 lb tow rating and 1,310 lb payload, and it stops looking like the whole story.
- For most buyers the real decision is price and unknowns: a well-documented used 2021-2024 TRX averaging roughly $70,000-95,000 depending on year, against a 2027 SRT TRX averaging around $110,300 with weeks of ownership history behind it.