Tempest 395A-Powered 1958 Pontiac Chieftain Convertible
Ended Apr 23, 2025 at 7:22 PM UTC
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Addenda and errata
Please note this Pontiac has an automatic transmission.
*Please note a walkaround and engine idle video has been added to the video gallery.
*Please note a second walkaround and engine idle video has been added to the video gallery.
*Please note a driving POV video has been added to the video gallery.
Video gallery



Description
OFFERED WITHOUT RESERVE
On 1 September 1956, John Z. Delorean went to work for General Motors’ Pontiac Division. He initially balked at his placement at Pontiac and not one of the upscale divisions — “What an old lady’s division that is. I don’t want to work here,” he said in his autobiography. But by 1958 Pontiac was rapidly becoming General Motors’ performance division thanks to Delorean and new chief engineer, Elliot “Pete” Estes. The Chieftain and limited-production Bonneville models were Pontiac’s image-changers, as standard power was a new 370 cu-in V8, and “Tri-Power” with three two-barrel Rochester carburetors a popular option. To prove the point, Pontiacs won the Daytona Beach NASCAR Grand National race that year, and also captured NHRA Stock drag racing victories, all using the special “Tempest 395A” 370 engine rated at 330 hp.
As part of the third generation of Chieftains, the 1958 model was the last before the series was replaced by the Catalina nameplate. This 1958 Pontiac Chieftain Convertible, finished in the very mid-century “Graystone White” with “Rangoon Red” color scheme, is powered by the rare Tempest 395A engine. It’s an older restoration, but one that was honored by display at the invitation-only The Milwaukee Masterpiece Concours D’Elegance in 2013.
Highlights
Pontiac’s high performance machine for 1958
Autographed by famous Pontiac drag racer Arnie "The Farmer" Beswick
Rare “Tri-Power” 370 cu-in V8 “Tempest 395A” NASCAR certified engine with three two-barrel Rochester carbs rated at 330 horsepower
“Strato-Flight Hydra-Matic” four-speed automatic transmission
Finished in Graystone White (Y) with Rangoon Red (H) inset
Complementing Two-Tone Red and Ivory (220) vinyl “Morrokide” interior
White (1) power convertible top
The chassis number (K558H2533) decodes as:
K – Kansas City, Kansas, final assembly plant
5 – Series 25, Chieftain
58 – 1958 model year
H – Hydra-Matic transmission
2533 – Production serial number
The Body by Fisher tag decodes as:
Style 58-2567 – 1958 Chieftain Convertible
Body No: P 6764 – Pontiac, Michigan, plant body serial number
Trim: 220-1 – Two-Tone Red and Ivory “Seville Finish Morrokide” interior and White convertible top
Paint: YYH – Graystone White body and top with Rangoon Red inset
Acc.: BEXKXGJX – Circulaire Heater and Defroster; Electric Antenna; Latex Foam Cushion - Front; Windshield Washer; Instrument Panel Pad
Features
Electric fuel pump added to aid starting
Delco Super Deluxe radio
Power steering
Vacuum-assisted power brakes
Padded dashboard
Known Imperfections
Minor paint touch ups and chips
Slight damage on the passenger’s rocker and lower door
Convertible top material is tight and is hard to latch from age
Brakes are soft
Possible slight exhaust leak
Included
1958 Pontiac Accessorizer
1958 Pontiac Owner’s Guide
Vintage magazines with 1958 Pontiac articles
Program for The Milwaukee Masterpiece Concours D’Elegance 2013
Tempest 395A engine technical documents
1958 Pontiac “Accessorizer” and Pontiac Accessories book
1958 Pontiac Brochure
Ownership History
This 1958 Pontiac Chieftain Convertible is offered from the estate of its owner. It is unknown if the Tempest 395A engine was factory installed or possibly a dealer installation. It is an older restoration, and the consignor states, “This is a fairly well sorted out example but may need some work or have minor cosmetic imperfections or a minor electrical or mechanical issue.”
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