Universal 1970 Information - chicagolandbuick.org

1 Universal 1970 Information - Production FiguresBody StyleEngine TypeProductionHardtop3509,948 Hardtop4555,589 Hardtop455 Stage 12,465 Convertible4551,184 Convertible455 Stage 1232 GSX455278 GSX455 Stage 1400 Total Production for 197020,096- VIN Located on the upper left face of the dash and is visible through the windshield. The 1st digit will be a 4, Buick's code. The next 2 digits will be - 34 for GS 350 46 for GS 455 The next 2 digits are the body style code - 67 for two door convertible 37 for two door hardtop The 6th digit is the year code, 0. The letter is the assembly plant code - B - Baltimore, Maryland C - South Gate, California D - Atlanta, Georgia G - Framingham, Massachusetts H - Flint, Michigan I - Oshawa, Canada K - Kansas City or Leeds, Missouri L - Van Nuys, California N - Norwood, Ohio V - Bloomfield, New Jersey X - Kansas City, Missouri or Fairfax, Kansas Y - Wilmington, Delaware Z - Fremont.

2 California- ColorsColorSales CodeService CodeRegal BlackA19 Glacier WhiteC10 Gulfstream WhiteD25 Diplomat BlueE28 Coronet GoldG55 Seamist GreenH58 Aqua MistK34 Sherwood GreenM48 Burgundy MistN78 Silver MistP14 Fire RedR75 Desert GoldS53 Bamboo CreamY50 Harvest GoldZ55 Apollo WhiteC10 Saturn YellowQQ- Vinyl Roof ColorsColorSales CodeService CodeWhite1 ABlack2 Dark Gold7 Dark Brown5 Dark Green9- Convertible Top ColorsColorSales CodeService CodeWhite1 Black2 Dark Green5E- Assorted Information 1970 Chevrolet Monte Carlo's and Chevelle's use the same trunk lids as the GS. You could order the GS painted in a Riveria color for $100. The Riveria paint code willbe on the cowl GS 350- Engine Engine has an engine code of SP and is painted red.

3 Bore and Stroke - " x " Compression Ratio - :1 Horsepower - 315 hp @ 4800 RPM Torque - 410 ft. lbs. @ 3200 RPM The Carburerator was a Rochester Q Jet 4V with numbers of M/T 7040245 and A/T7040244 Distributor Number - 1112006 Firing Order is 1-8-4-3-6-5-7-2 with the left bank from front to back being 1-3-5-7 and theright being Transmission There were three different transmissions offered with the GS in 1970 , a three speedmanual, a four speed manual, and the TH-350 Rear Axle The standard rear axle ratio was Assorted Information The GS was equipped with dual exhaust. The stripes in the rocker panels should be red in GS 455- Engine Engine has an engine code of SR and is painted red.

4 Bore and Stroke - " x " Compression Ratio - :1 Horsepower - 350 hp @ 4600 RPM Torque - 510 ft. lbs. @ 2600 RPM The Carburerator was a Rochester Q Jet 4V with numbers of M/T 7040243 and A/T7040246 Distributor Number - 1111984 Firing Order is 1-8-4-3-6-5-7-2 with the left bank from front to back being 1-3-5-7 and theright being 2-4-6-8. The intake casting number was 1236403. The head casting number was 1231786. Note: The casting number for service replacement heads was 1240149. The valves were " in diameter for intake and " in diameter for exhaust. The block casting number was Transmission There were three different transmissions offered with the GS in 1970 , a three speedmanual, a four speed manual, and the TH-400 Rear Axle The standard rear axle ratio was :1 for manual transmission cars and :1 for carsequipped with the Assorted Information The GS was equipped with dual exhaust.

5 The stripes in the rocker panels should be red in GS 455 Stage 1- Engine Engine has an engine code of SS, located between the 5 and 7 plug holes, and ispainted red. Bore and Stroke - " x " Compression Ratio - :1 Horsepower - 360 hp @ 4600 RPM Torque - 510 ft. lbs. @ 2600 RPM The Carburerator was a Rochester Q Jet 4V with numbers of M/T 7040246 and A/T7040246 Distributor Number - 1111962 Firing Order is 1-8-4-3-6-5-7-2 with the left bank from front to back being 1-3-5-7 and theright being 2-4-6-8. The intake casting number was 1231718. The head casting number was 1231786. Note: The casting number for service replacement heads was 1240149.

6 The Stage 1 heads share casting numbers with the 455 heads, but contain larger intake valve is " in diameter and the " in diameter. The block casting number was 1231738. Stage 1 cam -o At advanced duration ( ") is 297o intake and 307o exhaust. Duration " is 207o intake and 226o Lift at intake is " and " at exhausto Lobe seperation is 116o at intake and exhaust. The Stage 1 should have a 5/8" inside diameter oil pickup tube and a high pressure 60psi oil relief spring. The Stage 1 should also have chrome valve covers and bolts. The Stage 1 had a black painted air cleaner Transmission There were three different transmissions offered with the GS in 1970 , a three speedmanual, a four speed manual, and the TH-400 automatic.

7 If the car has the TH-400 the transmission should have a model code of BB. The transmission model code is located on the passenger side of the transmission. TH-400 should also have a high RPM Rear Axle The standard rear axle ratio was :1 for non-air conditioned cars and :1 for carsequipped with air Assorted Information The GS was equipped with dual exhaust. The stripes in the rocker panels should be red in color. All GS Stage 1's were assembled in Flint, Michigan and will have H as the seventhposition of the VIN. The Stage 1 package was code #275 and cost $ The Stage 1 emblems should attach through studs in the "S" and the "1". 1970 GSX- Engine The GSX could be equipped with either the 455 or the 455 Stage 1 Transmission There were two different transmissions offered with the GS in 1970 , a four speed manualwhich was standard, and the TH-400 automatic.

8 The TH-400 should have a model code of BB or OW for a Stage 1 and BA for a Axle The GSX's equipped with the 455 had a :1 rear axle ratio with Assorted Information The GS was equipped with dual exhaust. The stripes in the rocker panels should be black in color. The GSX was offered in only two colors - Saturn Yellow and Apollo White. The GSX was only offered as a hardtop, no convertibles were produced. The paint code for a Saturn Yellow GSX is QQ and was used only on the GSX. The paint code for the Apollo White GSX is 10 and was also the same code for theGlacier White GS's. The GSX contained no seperate VIN identification. GSX option included: Rallye Ride Control Power Disc Brakes G60 x 15 Tires on 7" Chrome Wheels Engine Insruments and Rallye Clock GSX Specific Ornamentation Four-Speed Manual Transmission Consolette Items that were specific to the GSX: Front and Rear Spoilers Note: The front spoiler was shipped in the trunk and installed by the dealer to preventdamage during transportation.

9 Hood Stripe Body Side, Fender, Quarter Panel, and Rear Spoiler Stripes GSX Quarter Panel and Rear Spoiler Decals GSX Grill and Instrument Panel Emblems Outside Racing Mirrors Hood Tachometer Rallye Steering Wheel :1 Posi-Traction Rear Axle Except L75 Option Stage 1 Cars Black Bucket Seats Optional equipment was the TH-400 transmission with floor shift console and the Stage1 option. Items not available on the GSX: Vinyl Top Body Side Protective, Deck Lid, Rear of Hood, and Fender Cowl Moldings The GSX had a black interior, trim code 188. The GSX came with a special padded steering wheel The GSX also had a special trunk tensioner bar to support the spoiler.

10 GSX's with the original paint should have a small miss-match in the stripes directlyabove the rear wheel It a Factory Stage 1?by Richard Lasseter and Mark DeContias published in the Nov/Dec 1994 GS X-traThe VIN does not differentiate the Stage 1 from the standard 455. Contrary to popular beliefsuch options as tach, gages, sway bars, 15" wheels and disc brakes were not standardequipment with the Stage Stage 1 short block is identical to its non-Stage 1 counterpart. All 1970 and later Stage 1heads were simply standard heads opened up to accept bigger Stage 1 valves. This is whystandard and Stage 1 heads carry the same casting number. On the smaller bore 400 in 1969,the bigger valves would ve been shrouded too much to give any solid horsepower gain so the1969 Stage 1 carried the standard size valves.