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  1. In 1969, the Impala SS was available only as the Z24 (SS427), coming exclusively with a 427 cu in (7.0 L) V8 of 335 hp (250 kW; 340 PS), 390 hp (291 kW; 395 PS), or 425 hp (317 kW; 431 PS). This was the final year for the Impala SS until 1994.

    • 213.2 in (5,415 mm) (sedan/coupe), 212.4 in (5,395 mm) (wagon)
    • 1964–1970
    • 1965–1970
  2. Jun 19, 2018 · In factory form, the L36 427 engine featured a camshaft with a duration of 214/218 at .050-inch lift. Valve lift was a conservative .461/.480-inch. The replacement specs out at .461/.480-inch lift, and 268/274 degrees duration at .008-inch lift.

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  4. Mar 27, 2020 · But what exactly is the difference between the 1967 Impala SS with a 427 and the 1967 Impala SS with SS427 (Z24) Package? Both are based on the 1967 Impala SS and have a 427 L36 Engine. Is the Suspension the only difference?

  5. Sep 24, 2018 · Displacement: 427 cubic inches. Bore x Stroke: 4.25 x 3.76. Compression ratio: 11.0:1. Horsepower: 425 @ 6,500. Torque: 460 @ 4,000. Fuel delivery: Single four-barrel Holley R4053A carburetor . Production. Chevrolet built 710,900 Impalas for the 1968 model year. Impala SS: 38,210. Impala SS427: 1,778. Full-size L72 Chevys: 568. Full-size L36 ...

    • Jeff Koch
  6. Sep 22, 2018 · Category: Muscle Cars. If you listen to the experts, Bill Wickman's L-72-powered 1967 Chevrolet Impala SS 427 shouldn't exist. Chevy supposedly didn't put any 427-cu.in./ 425hp big-block Mark IV engines in their full-size line in 1967.

    • Terry Shea
  7. Sep 23, 2018 · Back in the fall of '68, Bob ordered a 1969 Impala SS 427 from Funston Chevrolet. It was one of the area's smaller Chevy dealerships, but one well-versed in performance, including selling one of the early 1967 Z/28s and a number of COPO cars. They were up to speed on the big-block Impalas.

  8. Jun 12, 2015 · That’s because it isn’t just any Impala convertible, but a fire-breathing SS 427. Just check RPO Z-24 on your build sheet! This one comes with Positraction and a 4-speed gearbox. It’s a fairly rare beast: one of 1,778 built in 1968.