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1969 Chevrolet Chevelle SS 396 375hp L78 vs 1970 Buick GS 455 Stage 1 (Pure Stock Muscle Car Drag Race)
How about these two cars!?!? RIGHT!?!? Arguably, my favorite Chevelle and my favorite Buick GS. Of course the first car is a 1969 Chevrolet Chevelle SS396 L78. And that L78 is an absolute monster! Rated 375 horsepower, but come on, there's definitely a lot more hiding under that hood. Seeing the build sheet is really cool. To me it's pretty obvious that the original buyer wanted a car to go fast, and that was about it! Around that time the L78 was a pretty good deal.
Then we have its competitor... that being a 1970 Buick GS455 Stage 1. Yes, a Stage 1. One of the most nasty torquey cars out there. Only the absolutely massive 500+ci Cadillac engines of the day could match that torque. As you'll see in the video, Motor Trend tested this car in 1970 and it was quicker in the 1/4 mile than a 1970 Hemi 'Cuda! Pretty crazy. Which car do you like more?
Both cars participate in the Pure Stock Muscle Car Drag Race series. Here are the rules:
For 1955 to 1979 musclecars built in United States and Canadian assembly plants with a minimum warranty of 12 months and 12,000 miles.
Any car running faster than 11.50 will be disqualified and will not have a qualifying time recorded.
Any convertible running faster then 13.50 will be disqualified and will not have a qualifying time recorded.
Casting numbers must be correct for the year and horsepower claimed including intake manifold, heads, and exhaust manifolds. Blocks do not have to be "numbers matching," but they must be the correct displacement. Overbores up to .070" are allowed. Stock cranks only.
All Engines - 1.5 extra points allowed over advertised.
The camshaft must be correct for the year, model, and horsepower claimed for the type of lifter (hydraulic or solid). Roller cams NOT allowed.
The valve train must be factory stock for the year, make, and horsepower claimed.
The ignition system must be stock, including the distributor, cap, coil, and wires. Points may be replaced with any electronic conversion that fits under the stock distributor cap.
The carburetor must be correct for the year, make, and horsepower claimed. Jetting and metering changes are permitted. THE CHOKE ASSEMBLY MUST BE IN PLACE AND FUNCTIONAL!
Cast-iron exhaust manifolds are mandatory and must be correct for the year, model, and horsepower claimed. Internal modifications to the exhaust manifolds are NOT allowed. Under no circumstances will headers be allowed, including those cars that came with headers delivered in the trunk. Pipes must be routed as they were originally for the year, make, model, and engine combination. Mufflers must be stock looking in design, that is, oval in shape. No glasspacks or straight pipes allowed unless installed as original equipment. Maximum muffler inlet and outlet size is 2.5 inches. X & H pipes allowed.
The radiator must be correct for the year, make, model, and horsepower claimed. No lightweight, aluminum radiators allowed.
Maximum stall limited to 2200 rpm.
The transmission must be correct for year, make, model and engine of the car. 3-speed manuals may be upgraded to the correct 4-speed if originally available.
The rear axle must be of the same manufacturer as the car. Any gear ratio is allowed.
Reproduction tires or radial tires only.You are allowed to run tires one size over stock.
Factory wheels only.
#chevroletchevelle #buickgs #dragracing