For horsepower tv have 1970 ls7 crate motor trying to find some engine specs to change camcalled local gm dealers have no information on it can you help you terriespyderaolcom?
Chevy used the LS-7 ( not LS7 ) to identify a higher horsepower
version of the 454 cubic inch (7.4 L) Mark IV engine in 1970.
displacement 454 cid
bore and stroke 4.251 x 4.00"
brake horsepower 465 @ 5200rpm
torque 490 @ 5200 rpm
solid valve lifters
high performance cam
did not come with a carb. because it was a replacement
I use a Dart single plane intake with a 950 pro series and 602
hp @ 5400 rpm
555 ft. lbs @ 5300 rpm