1964-1966: 389 CID. 1967-1969: 400 CID. 1970-1972: 400 or 455 CID.
The timing is 2 degrees before top dead center for a stock 400 cid. At least, that is what it indicates on my valve cover. My truck is a 1977 W200 with a stock 400 cid engine. Because of changes in the composition of today's gas, over what is used to be when that label was glued to my valve cover in 1977, many have suggested that it would run better if the timing were advanced a few degrees. Others have said that the carb should be recalibrated as well. Hope that helps.
245 H.P 400 FT. LB torque
Advertised Horsepower is: 175 HP @ 3600 RPMs. This is a 1975 400 I see no record of a 400 CID in 1974
Should be the 258 cid I6
*Correction* probably a typo below but it is: 18436572 18435672
Clockwise on all stock Chevyrolets.
The engine makes--145 HP @ 3800 RPMs. STOCK. 305 CID 2bbl V8 (145 horsepower, 245 lbs/ft of torque)
Bore 4.120 Stroke 3.75
CID it's meen - Criminal Investigation Department and if you want much information look this link http:/en.wikipedia.org/wiki/CID
350 cid V8 with TH-350 transmission
400 block, with a 350 crankshaft. 383 cid.