Chevrolet Corvette 1967 L68 427 Tri-Power C2 Convertible

Chevrolet offered three different ways to get 427 cubic inches in a 1967 Corvette, and the L68 split the difference perfectly. Its Tri-Power setup made 400 horsepower on a street-friendly hydraulic cam, unlike the temperamental solid-lifter engine above it. This numbers-matching convertible wears that middle-ground 427 — and its Tri-Power hood bulge — with pride. For collectors who want a big-block Corvette they can actually drive, that combination is hard to beat.

Number’s Matching Tri-Power Big Block 1967 Chevrolet Corvette 427 / 400HP L68 in action on the street, need I say more?

Chevrolet gave 1967 Corvette buyers three different ways to get 427 cubic inches under the hood, and picking the wrong one meant living with a car that was either too tame or too temperamental for daily use. Somewhere in the middle sat an option that tried to split the difference — enough power to embarrass just about anything else on the street, without the mechanical drama of the top-tier engine. The numbers-matching example pictured here wears that middle-ground engine, and its owner clearly wasn’t interested in compromise. So what made this particular 427 the one serious street drivers actually wanted?

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Three Carburetors, One Street-Friendly Cam

The RPO L68 paired the 427-cubic-inch big block with three Holley two-barrel carburetors — the setup Chevrolet marketed as Tri-Power — rated at 400 horsepower at 5,400 rpm. Unlike the range-topping L71, which used a solid-lifter mechanical camshaft that demanded constant attention and didn’t like to idle politely, the L68 borrowed its hydraulic cam from the single-carburetor L36. That gave L68 buyers something increasingly rare in the big-block 427 lineup: real everyday drivability without giving up the visual drama of triple carburetors under the hood.

The Middle Child of the 427 Lineup

At $305, the L68 option slotted between the base 390-horsepower L36 and the fire-breathing 435-horsepower L71 in both price and personality, giving buyers a genuine middle ground rather than forcing a choice between mild and wild. That balance is exactly why numbers-matching L68 convertibles like this one remain so desirable with collectors — a big-block Corvette that looks the part with its Tri-Power hood bulge, but one you could actually drive to work on a Monday.

Why Collectors Still Seek Out the L68

Because the L68 wasn’t the flashiest or fastest option in the 427 lineup, fewer buyers ordered it new, which paradoxically makes well-documented, numbers-matching examples harder to find today than some of the more famous L71 cars. For collectors who want a big-block Corvette they can actually enjoy on a regular drive rather than trailer to shows, the L68’s blend of power and usability continues to make it one of the most underrated engine options Chevrolet ever offered in the C2 generation. It’s the kind of engine option that rewards patience for buyers willing to search past the more famous L71 cars for something just as capable and considerably more livable.

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