These days, C8 Corvette owners have more than a few options when it comes to aftermarket engine performance, with tuners offering a range of forced induction and nitrous-based upgrades. However, some folks may simply prefer more displacement. Now, Lingenfelter Performance Engineering is offering exactly that with its new stroker 427 7.0L engine upgrade, upping output to a claimed 700 horsepower.
For reference, the C8 Corvette Stingray is equipped from the factory with the naturally aspirated 6.2L V8 LT2 engine, which is rated at a maximum of 490 horsepower and 465 pound-feet of torque right from the factory. Notably, Lingenfelter’s stroker 427 7.0L engine also fits the C8 Corvette E-Ray, which pairs the 6.2L V8 LT2 with a front-mounted electric motor.
Lingenfelter posted a video of the new stroker engine testing on a chassis dyno. The final power graph shows maximum output of 577 horsepower at 6,590 rpm (up from 440 horsepower at 6,100 rpm) and 528 pound-feet of torque at 4,870 rpm (up from 428 pound-feet of torque at 5,120 rpm). To note, these numbers are measured at the wheels. Lingenfelter has also posted a dyno graph with figures of 700 horsepower and 600 pound-feet of torque, presumably captured on an engine dyno, rather than a chassis dyno.
Check out the 26-second dyno video below to see the engine in action. The video also captures the new engine’s exhaust note, which sounds rather spicy as it rises in rpm:
As covered previously, development of the 427 7.0L engine wasn’t exactly a straightforward process, with issue arising due to the C8’s unique mid-engine packaging. For example, the engine needed to retain the factory oiling system, including the flush-mounted oil pan, as well as run on 91 octane fuel and retain compatibility with the factory-spec eight-speed dual-clutch automatic transmission co-developed with Tremec.
Engine highlights include Callies 6.125-inch H-beam connecting rods, Mahle 4.125-inch pistons, a CNC-machined block, larger sleeves, high-flow injectors, and a high-pressure fuel pump.
Pricing for the new 427 LT2 is set at $29,950, including core charge discount and installation, per the Lingenfelter website.
Comments
The standard C8 gets really boring after 5 minutes, the Z06 sounds like Eurotrash and the ZR1 having turbos is pure blasphemy. I’ve seen and heard that car in person. THAT is the C8 Chevy should have been making. Between the 7.0L stroker and the supercharged C8s, Lingenfelter is making the alternate reality Corvettes that should have come from the factory. Also, the noise that thing makes is ridiculous. You can’t help but grin like an idiot when you hear it. It SOUNDS like what your inner 8 year old thinks a Corvette should sound like.
I’d take that car all day every day over a Z06.
Then a EURO sports car is better for you.
You sound like a lot of fun at parties
30 grand is a lot of dough for performance that won’t be used correctly, on a race track. The few small minded people that opt for this will go looking for unsuspecting prey to street race. However, since there doesn’t seem to be a lot of performance up grades in the future for a corvette, Chevy should think a little outside the box. Maybe offer a 427 engine option for us nostalgic buyers and an optional manual transmission. A marlboro maroon INSIDE and out LE color compo. Things of this nature. Dodge’s Challenger stayed very relevant with ties to the old days of muscle cars. Oh, BTW, Dodge, how’s that EV muscle car work’n out for you……dopes.
Why just not buy the Z06?
“Why just not buy the Z06?” Well for starters the 7.0L combined with the E-Ray package means this car would smoke the Z06 in every performance category anybody cares about for less money and sound better doing it. “30 grand is a lot of dough” sure it is. And that’s just about how much you’d lose the second you drove your new Z06 off the lot. I’d say the money involved isn’t really the priority for somebody who wants a car like this. It’s about having something everyone else doesn’t have. You could buy a no mile well equipped used C8 for peanuts, have LPE do this to your car and then go out and have something really special that’s a sleeper vs just another boring bone stock Z06.
The mentality for this is the same as it would be for anybody who takes their cars to Callaway, HPE, Katech or whoever. IMO Lingenfelter is the best engineered and most creative of the bunch by far. Big fan.