1970 Buick Gran Sport 455

American Classic Cars
2282 Arrow Hwy
La Verne, CA

Message Seller




La Verne, CA



Year 1970
Mileage 15982
Engine 455875758
Doors --
Transmission 7.5L V8
Make Buick
Model Other

Other 1970

Title Status Clear
Exterior Color Bamboo Cream
Interior Color Ivory Vinyl


1970 BUICK GS 455 CONVERTIBLE T-1312 -Body Style: Convertible -Make: Buick -Model: GS 455, Standard engine -Model Year: 1970 -Trim Package: GS -Transmission Type: Muncie 4 Speed -Transmission Description: M-21 close ratio, the vehicle VIN code is stamped in the transmission case to validate that the car is the original 4 speed model. Center Force Dual Friction clutch. -Drivetrain: GM 12 Bolt, Open differential, 2.73 gears for freeway cruising, Original gear was a 3.61. -Engine cylinders: 8 -Engine size: 455 (engine is a date code correct 455 originally out of a Riviera as the original engine was blown in the 70s) -Engine Aspiration: Edelbrock B4B manifold with the correct carb location for the ram air hood. Original Quadrajet carburetor. -Engine description: 455 cid Buick. Engine was completely blueprinted in 2001 and has approx. 15,000 miles since build. Engine is 0.030 inches overbore, Stage 1 valves with pocket porting, mild Crane camshaft. Crane Electronic ignition conversion which is undetectable from the exterior. The cylinder block has all Stage 1 oiling system upgrades, as well as a NOS front cover and high-volume oil pump. The compression ratio is 8 to 1 to be able to run on regular fuel. The engine dynoed at 330 hp and 490 lb/ft of torque with the complete in-vehicle exhaust system. Complete custom Flowmaster 2 dual exhaust with Hushpower resonators at rear of vehicle for a great tone. Exterior Color Description: Bamboo Cream, Car was externally restored in 1995 and has been garage kept ever since. Interior Color Description: Ivory Interior Fabric: Factory Vinyl, all correct patterns. Interior was restored in 2000. Description/Notes: The car is a very well-kept driver which is in outstanding condition. Its been throughout the So. Cal. car show events with many first-place wins. Owner used the vehicle twice on the Hot Rod Power Tour in conjunction with Flowmaster Muffler (the Co-title sponsor). The braking system has been upgraded with Baer 4-wheel disc brakes. The car was used as the development vehicle by Baer for this brake system to fit 12 inch disc brakes behind the factory 5 spoke chrome steel wheels. The suspension is upgraded with Hotchkiss front and rear springs, front and rear sway bars, and rear control arms. None of these changes modified the vehicle and could be returned to stock if someone wished to do so. Finally, in 1970 Buick produced 1,184 GS 455 Convertibles, and of those, only 126 were equipped with a 4- speed transmission making it a very desirable vehicle. (All verifiable on the GS registry). ***If you are viewing this on Facebook Marketplace, be sure go to our website to view all photos. (*** GIVE US A CALL @ 909-596-5700 WITH ANY QUESTIONS THAT YOU MAY HAVE. OUR BUSINESS HOURS: MONDAY-FRIDAY 9AM-5PM


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