Chevrolet
Corvette L89 aluminium-head 427/435 (1967)

Why it matters

The L89 was an option on an optional engine: aluminium cylinder heads fitted to the 435 hp Tri-Power L71. Only sixteen 1967 Corvettes received it.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Each kind of rarity is rated separately and never combined.

Production

Every figure says what it counts.

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

The 1967 Sting Ray was a stop-gap year, because the C3 was sent back to the wind tunnel. Four of its five engines were 427s. Three Holley two-barrel carburetors on an aluminium intake made the 400 hp L68 and the 435 hp L71, and the L89 added aluminium heads to the L71.

The hub gives 2,101 L68s and 3,754 L71s built in 1967, against sixteen L89s. The L88 was also available that year and was rated at 430 hp.

Technical specifications

Engine

Transmission & drivetrain

Chassis, body & dimensions

Performance

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

Sources

Each number links to the exact facts it supports.

1. 1
   C2 Corvette generation research hub Level B CorvSport

   • L89 adding aluminum heads to the L71 on sixteen cars
   • four of the five engines were 427s
   • L89 adding aluminum heads to the L71
   • three Holley two-barrels on an aluminum intake
   • 435 hp Tri-Power (L71/L89)

   Accessed 2026-11-12
2. 2
   Sports Car Market – 1967 Corvette L89 427/435 Coupe Level B

   • 16 1967 Corvettes with the L89 option ('according to widely published data', subject to verification)

   Accessed 2026-11-11