1970 Chevrolet Chevelle LS6 - $335k

Behold a pristine big dog, the most powerful car on the road in 1970. Only 4,475 LS6-powered vehicles were built across the GM lineup and the LS6 was a one year only option. Cortez silver over black. Frame-off rotisserie restoration. Matching numbers 454/450 HP V-8 engine with date-correct components. 4-speed manual transmission with Hurst shifter. Copy of letter of certification confirming originality from renowned LS6 expert and restorer Chris White. Copy of build sheet. Original window sticker. Copy of Camaro Hi-Performance Certification. Ownership history with registration to the original owner.

12-bolt differential. F41-suspension. Cowl induction hood with hood pins and cowl induction hood tags. Power front disc brakes. Dual exhaust trumpets. Bucket seats and center console. Rally dash with tachometer and AM/FM radio.

Always sought after and highly desirable, a concours 1970 Chevrolet Chevelle LS6 is trending around $395k according to Hagerty, down from higher levels. This example appeared at Mecum and made $335k.

1970 Chevrolet Chevelle LS6 - $130k high bid

Matching numbers 454/450 HP Turbo-Jet V-8 engine. ZL2 cowl-induction hood. M22 Muncie Rock Crusher 4-speed manual transmission with Muncie chrome shifter knob. 12-bolt differential. Holley 4-barrel carburetor. Winters aluminum intake. Solid-lifter cam. Dual exhaust. Power steering. RPO Z15 (SS454) package added engine chrome, bright exhaust tips, power front disc brakes, heavy-duty suspension and body blackout grille and tail panel. Classic White exterior with Black SS stripes. 788-code Red vinyl Strato bucket seat interior with center console.

4,475 LS6-powered Chevelles were produced in 1970.

Sitting at the absolute apex of the muscle car food chain in 1970 was Chevrolet’s SS Chevelle. The mighty 1970 Chevrolet Chevelle SS 454 LS6 was powered by the most powerful engine offered in 1970, with 450 horsepower and 500 lb-ft of torque on tap.

This example has 62,345 miles on the clock and is offered at Mecum

1970 Chevrolet Chevelle LS6 - $187k

Original matching numbers drivetrain validated on January 18, 2025. Listed in the LS6 Chevelle Registry, Certificate no. LS6-194. Rotisserie restoration completed in 2014. Original CRV code 454/450 HP LS6 engine. Original Muncie M22 4-speed transmission. Original 12 bolt, 3.31 ratio Positraction rear end. Rebuilt drivetrain and F41 suspension. SS wheels with Firestone F70-14 tires. Refinished in the original Cranberry Red over black. Highly detailed engine bay and undercarriage. Sitting atop the muscle car food chain in 1970 was Chevrolet’s SS Chevelle designated RPO Z15. Checking off this option delivered a 450 hp, 454 cubic inch solid lifter behemoth that cranked out 500 lbs.-ft. of torque and bludgeoned all challengers.

The 450 horsepower LS6 was the most powerful engine offered in 1970. The Cowl Induction system fed outside air to a 780 cfm Holley carburetor. The LS6 featured a beefy bottom end with four-bolt mains, forged steel crankshaft and connecting rods with forged aluminum, and 11.25:1 compression pistons.

Because of the LS6’s high (6500) redline, deep groove accessory drive pulleys were necessary. Thanks to new Federal emission standards, the LS6 was hobbled with the primitive Air Injection Reactor (A.I.R.) pump. That was the first to go when owners took delivery. Either the Muncie M22 “Rock Crusher” close ratio four-speed manual transmission or the three-speed M40 Turbo Hydra-Matic automatic were available with rear gear choices up to 4.33:1 rear gears and limited slip differential. Buying an LS6 Chevelle required the customer to purchase mandatory options, and it wasn’t cheap. The RPO Z15 SS 454 package was $503.45. The LS6 added $263.30 and either a M22 ($221.80) or M40 ($290.40) was required. The biggest bad dog meant an additional $988.55 to a base price of just over $2,800.

It’s agreed that Chevrolet produced 4,475 LS6 Chevelles, however there is no break down as to coupe, convertible and El Caminos in that total. A rotisserie, no expense spared nut and bolt restoration was completed in 2014. Virtually all major components were rebuilt. This top end example carried a too high estimate of $250k to $300k at Mecum.

1970 Chevrolet Chevelle LS6 - $132k

LS6 Registry Certificate. Professional restoration to concours quality. The only known example with COPO Daytona Yellow paint and Black cloth interior. Matching numbers LS6 engine. M22 Rock Crusher transmission. F41 Special Performance suspension. Cowl induction hood with Super Sport stripes. 4.10 Positraction differential. Date code correct 4491 Holley Carburetor for California emissions Tachometer and gauge package. Pushbutton AM radio Correct Goodyear polyglas tires. Correct T3 headlamps.

Sitting atop the muscle car food chain in 1970 was Chevrolet’s SS Chevelle. Not just the namby pamby, 360 horsepower SS454, but the King Kong, designated RPO Z15. Checking off this option delivered a 450 horsepower, 454 cubic inch solid lifter behemoth that cranked out 500 lbs.-ft. of twist and beat the krap out of all pretenders.

This uber top end machine defines American muscle and is HIGHLY desirable. It appeared at Mecum.