1970 Chevrolet Monte Carlo SS

I am reluctantly selling my RARE (less than 3823 units produced) 1970 Monte Carlo SS 454; LS5 (469.0 CID after rebuild). Documented numbers matching, VIN and block match build date Sept 1970. Car never smoked in and always garaged. I am the 2nd owner and purchased the car from the original owner who is in his early 80's. I have tons of paperwork to go with the car including the original invoice from 10/2/1969 which I have included in one of the pictures. I have tons of receipts and original dealer documentation that is as equally impressive which speaks to the excellent condition of this rare muscle car. Chrome, glass, trim, seats, carpet, dash, rear speaker panel are all in exceptionally great condition. The interior is 100% original and as you can see, in excellent condition. Being an extreme car enthusiast who appreciates originality, I chose not to modify or add anything to the interior of the car. Keeping this rare 70 Big-block Super Sport in its original condition has been my goal. This beauty looks like it's been sitting in a time capsule. Engine was professionally rebuilt in early 2026 by Lewis Racing Engines in Laytonville, Ca. and has less than 1000 miles. The car has 53000 ORIGINAL miles which I can substantiate as being true through stacks of receipts and registration documents. I'm posting this at a price that should interest those who can appreciate and understand the value of a numbers matching 70's Big-block Super Sport. That said, I will entertain any reasonable offers. Selling price matters to me but having this go to a home that can appreciate the value and rarity of this muscle car matter just as much. I will NOT respond to tire kickers or those who feel the need to low ball me or insult me by offering me way less what they know the car is worth. This car is ABSOSULETY AMAZING! Your neighbors will hear you coming and going.  Don't forget to check out the video. Additional videos and pictures available upon request and I'm happy to answer any questions. BTW, I didn't add A/C to the car because again, I wanted to keep the car in its original condition and didn't see the need to add anything that didn't come from the factory.  Thanks for looking!

Engine Specs;

SRP pistons 139479

Pro Seal Moly Piston Rings

SCAT 9-10454 Crank

Scat 2-ICR6135 Connecting Rods

Engine Balanced / (see data sheet)

Engine Dyno'd / (see data sheet)

Summit 1253 Cam, Billet 4-7 Swap- Roller

PRW 0245403 Roller Rockers

TrickFlow Pushrod

Morel 5374-16 HYD Roller Lifters

New Harmonic Balancer

ARP bolts used throughout engine rebuild

 What I've done;

New tires (2024) on 15x8 Rally wheels

New battery (2024)

Radiator serviced with new radiator cap

New belts, hoses, and clamps

New hood hinges, bolts, and springs

New Aluminum high flow Edelbrock water pump with performance thermostat

New power steering hose

New performance fuel line (Carb to fuel pump)

New Power Master 100amp alternator

$600.00 window tint - 2/2026

New fuel Filter 

New Edelbrock Carburetor w / electric choke

New headlights

Custom exhaust w flow master mufflers, gaskets, hangers, exhaust part turn downs. $2500

New battery cables (Neg and Pos)

New flamethrower coil, HEI distributor, spark plugs, and wires.

Have additional parts that you will receive with car including original carburetor, etc...

Exceptions
Fuel gauge doesn't appear to be accurate

Paint chips (see pics) I've done my best to provide close-ups of any paint chips.

Radio works but speaker may be blown. 

Clock doesn't appear to work (runs) but I didn't see the need to start ripping apart the dash since it is original.

Spare tire and Jack missing

 Stock Engine configuration / additional stock specs

90° OHV V8 (Chevrolet Mark IV big-block, LS5)

Displacement

454 cu in (7,439 cc)

Horsepower (SAE gross)

1970: 360 hp @ 4,800 rpm

Torque (SAE gross)

1970: 500 lb-ft @ 3,200 rpm

Induction type

Naturally aspirated, Rochester Quadrajet 4-bbl carburetor

Redline

~5,500 rpm

Fuel system

Carbureted (mechanical fuel pump)

Compression ratio

1970: ~10.25:1

Bore x Stroke

4.251 in x 4.00 in

Full Performance Specifications

060 mph

~6.87.5 seconds

Quarter-mile

~15.015.5 sec @ ~9295 mph

Curb weight

~3,9004,050 lb (typical equipment)

Layout

Front-engine, rear-wheel drive (FR)

Brakes

Power front discs, rear drums

Suspension

Front: unequal-length control arms, coils; Rear: 4-link live axle, coils; heavy-duty tuning; rear level control on SS

Gearbox

Turbo Hydra-Matic 400, 3-speed automat

Variant Breakdown (RPO Z20 SS 454)

While the Monte Carlo line offered various small- and big-block options, the SS 454 was a distinct package with specific content and emblems. It was produced for only two model years:

Production

1970 SS 454 (RPO Z20)

~3,823 units

LS5 454, 360 hp (SAE gross), 500 lb-ft; 

SS 454 badging; heavy-duty suspension; front discs; rear automatic level control; Monte-specific grille; bright moldings typical of Monte Carlo; Rally-type wheels and raised-white-letter tires common

Collector interest reflects its brief run and specification. Documented, numbers-matching SS 454s trade at a premium over small-block Montes, with highly original or expertly restored cars commanding strong prices. Historically, well-kept examples have sold in a broad range depending on provenance, options, and correctness, with exceptional cars capable of reaching notably higher results than driver-grade examples.

How many were built?

Approximately 3,823 SS 454s in 1970 

360 hp / 500 lb-ft

Transmission

TH400 automatic (3-speed)

Front/Rear Suspension

Coils, unequal A-arms / 4-link live axle, coils; heavy-duty tuning; level control

Brakes

Power front discs, rear drums

Approx. curb weight

~3,9004,050 lb