First its not called a big block, Pontiac never made a small block. it is just called a Pontiac 350. as far as tourque i t ranges from 150 to 400 depending on the year and trim
Bore 4.120 Stroke 3.75
45 lbs.
torque specs 350 Chevy heads65 lbs
18 ft lbs
20 foot pounds
65ft. LBS.
160 foot lbs
65 FT. LBS.
If it is a V8 it is 65FT.- LBS.
65 ft lbs
6 to 8 degrees before TDC.