What was the sales of the Pontiac Firebird in 1967?
Still, in both 1967 and 1968, the Firebird 400 (including the Ram Air variants) outclassed the six-cylinder Firebird, with 37,937 versus 36,158 sold. Backing the big V-8 was the B-O-P version of the Turbo Hydra-Matic 400 three-speed automatic.
How much horsepower does a Pontiac Firebird have?
ENGINES One of GM’s many corporate edicts in the 1960s restricted the maximum output of any production car to one horsepower per 10 pounds. With a target weight of 3,250 pounds for the 1967 Firebird 400, that meant Pontiac would have to restrict the 400-cu.in. V-8 to 325hp.
How big is the exhaust manifold on a Pontiac Firebird?
Shorty headers fit and perform similarly to Pontiac’s Ram Air exhaust manifold. Hedman offers a D-port version in its Hedder line for GTO and Firebird models that features 1.625–inch-diameter tubing that steps to 1.75 inches to improve low-RPM torque, and 2.5- and 3- inch collectors.
What was the gear ratio on a 1967 Firebird 400?
DIFFERENTIAL The 1967 Firebird 400 could have come with any of the Firebird’s range of rear gear ratios in the B-O-P 10-bolt differential, from a 2.56 through a 3.90. Firebird 400 buyers who ordered a 3.90:1 gear ratio–which was required with the Ram Air version–could only get that ratio with a Saf-T-Track limited-slip differential.
Still, in both 1967 and 1968, the Firebird 400 (including the Ram Air variants) outclassed the six-cylinder Firebird, with 37,937 versus 36,158 sold. Backing the big V-8 was the B-O-P version of the Turbo Hydra-Matic 400 three-speed automatic.
Shorty headers fit and perform similarly to Pontiac’s Ram Air exhaust manifold. Hedman offers a D-port version in its Hedder line for GTO and Firebird models that features 1.625–inch-diameter tubing that steps to 1.75 inches to improve low-RPM torque, and 2.5- and 3- inch collectors.
DIFFERENTIAL The 1967 Firebird 400 could have come with any of the Firebird’s range of rear gear ratios in the B-O-P 10-bolt differential, from a 2.56 through a 3.90. Firebird 400 buyers who ordered a 3.90:1 gear ratio–which was required with the Ram Air version–could only get that ratio with a Saf-T-Track limited-slip differential.
ENGINES One of GM’s many corporate edicts in the 1960s restricted the maximum output of any production car to one horsepower per 10 pounds. With a target weight of 3,250 pounds for the 1967 Firebird 400, that meant Pontiac would have to restrict the 400-cu.in. V-8 to 325hp.