454 stock Corvettes with a 4 speed transmission from 1970 to 1972, performance difference?
04-18-2004, 11:33 PM
#1
Racer
Thread Starter
454 stock Corvettes with a 4 speed transmission from 1970 to 1972, performance difference?
Just curious if you guy's have driven a 1970 454BB 390HP 4 speed, a
1971 454BB 360HP 4 speed, and also a 1972 454BB 270HP 4 speed.
Did you find a big diference in speed and performance from 1971 to 1972 454 Corvettes?
Let me know please.
Vic
vadelsohn@cogeco.ca
1971 454BB 360HP 4 speed, and also a 1972 454BB 270HP 4 speed.
Did you find a big diference in speed and performance from 1971 to 1972 454 Corvettes?
Let me know please.
Vic
vadelsohn@cogeco.ca
04-18-2004, 11:44 PM
#2
Team Owner
Re: 454 stock Corvettes
Considering the compression steadily dropped as well as the overall performance, I would think there is a noticable difference. How much of a difference, I'm not sure.
04-19-2004, 04:08 AM
#3
Melting Slicks
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Re: 454 stock Corvettes with a 4 speed transmission from 1970 to 1972
the engine is the same from 70-72. compression dropped in 71 and the gross hp went to 365 which is about 270-280 net, therefore 230-250 at the wheels. i doubt one could feel the difference because the torque is so huge with these motors.
04-19-2004, 08:00 AM
#4
Cruising
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Re: 454 stock Corvettes with a 4 speed transmission from 1970 to 1972 (Turbo-Jet)
Almost no difference in the the real world, Note GM chande specs from gross to net HP ratings as indicated in the above thread
