Re: 1969 chevelle 396 350 hp specs
AZCAMINO & DEAN ARE 100% correct.
FYI,i know for sure the 69 & 70 396/325hp & 350hp motors both had nodular iron cranks from the factory,396/375's had steel cranks.
Its the earlier like 1966-67 396/350hp & 360hp motors that had steel cranks (along with the 396/375hp & 1965 Z16 396/375hp.) and different intakes along with holleys not q-jets as mentioned in above post/s .
The only noteable difference between the 396/325hp & 350hp motors in 69 was the 350hp had an open element air cleaner,larger secondary metering rods,a more agressive hyd cam & better valve springs for higher rpm of 350hp cam,and a different ign timing curve in the distributor but they both had 10:25:1 compression.
The stock 325hp hyd cam had approx 198/198 deg int dur @.05,.398/.398 lift,114 or 115 deg L/S angle which was an extreemly mild cam for a 396. The 350hp cam was called the high lift/high perf hyd cam which had 214/218 deg int dur @.05,.461/.480 lift,115 deg L/S angle which was considerably more cam then the 325hp had but was still a mild cam.
1969 CHEVELLE SS396,ORIGINAL #'S MATCH,GOT IN 1978,(In 2001 rblt/bored original 396 .030 to 402)/M20/12BOLT/3:31'S
2002 MAXIMA (DAILY DRIVER/1 owner,GOT 3/2013 w-44k miles)
2009 HD ELECTRAGLIDE CLASSIC ULTRA (GOT 11/14 W-9,700 miles)