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Pontiac Firebird 1967-1974

1968 Firebirds

Year Total Produced

Engine availability in cubic inches/Horsepower

1967 82,560 230six/165-215hp, 326V-8/250-285hp, 400/325hp 
1968  214,224 230six/175-215hp, 350V-8/265-320hp, 400/330hp

 

1969 Firebird

Year Total Produced

Engine availability in cubic inches/Horsepower

1969 87,708 250six/175-230hp, 350V-8/265-325hp, 400/330-345hp

 

1974 Firebird

Year Total Produced

Engine availability in cubic inches/Horsepower

1970 48,739 250six/155hp, 350V-8/255hp, 400/265-335hp
1971 53,124 250six/145hp, 350V-8/250hp, 400/300hp, 455/325-335hp
1972 29,951 250six/110nhp, 350V-8/160-175nhp, 400/250nhp, 455/300nhp 
1973 46,313 250six/100nhp, 350V-8/150hp, 400/170hp, 455/250-310nhp
1974 73,729 250six/100nhp, 350V-8/155hp, 400/175-225hp, 455/250-290nhp
Note: Starting in 1972, the "net" horsepower rating system went into effect and meant that the motors were tested with all their equipment attached, which resulted in lower horsepower numbers, making them appear to have less power than they actually had.  The auto makers had to start lowering compression ratios in 1971 and this resulted in some horsepower loss, but it wasn't until 1975 that muscle cars were dealt their final blow.  Compression was lowered even more to allow cars to run on unleaded fuel.  Big block engines became extinct, and the smaller engines were so underpowered it was pathetic. 

 

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