General Motors dealership can look it up, is it a 4 bolt main motor?

i own a shop,and i looked in my data base on it and cant find it either ,but they did tell you right if its actually one of the pace car engines they was rated at 390 horse power,all other 396 engines unless they was ordered that way only came with 375 horse power,and there was also a 325 horsepower version of it also,i use to own one of the 390 horse ones,but they came out in other things also,like the 69 chevelle SS,they also had them,good luck hope this helps.

3955272….396…….69……2 or 4 bolt
Casting No Years CID Intake Exhaust Chamber CC
3931063 1969-70 396 2.06 1.72 Closed 100.9
Code Year CID HP Model Comment
JB 1969 396 325 Camaro
JC 1969 396 350 Chevelle HP
JA 1969 396 325 Chevelle
JB 1969 396 325 Camaro
JC 1969 396 350 Chevelle HP
JD 1969 396 375 Chevelle SHP
JE 1969 396 350 Chevelle HP
JF 1969 396 350 Chevy II HP
JF 1969 396 350 Camaro HP
JG 1969 396 325 Camaro
JH 1969 396 375 Chevy II SHP
JH 1969 396 375 Camaro SHP
JI 1969 396 350 Chevy II HP
JI 1969 396 350 Camaro HP
JJ 1969 396 375 Camaro alum hd
JK 1969 396 325 Chevelle
JL 1969 396 375 Chevy II SHP
JL 1969 396 375 Camaro SHP
JM 1969 396 Chevy II questionable
JM 1969 396 375 Camaro alum hd
JN 1969 396 265 Chevrolet
JO 1969 396 265 Chevrolet Police
JP 1969 396 265 Chevrolet Police
JQ 1969 396 265 Chevrolet
JR 1969 396 265 Chevrolet Police, hdc
JT 1969 396 265 Chevrolet hdc
JU 1969 396 Chevy II questionable
JU 1969 396 325 Camaro hdc
JV 1969 396 325 Chevelle
KA 1969 396 350 Camaro HP
KA 1969 396 350 Chevy II HP
KB 1969 396 350 Chevelle HP
KC 1969 396 375 Camaro SHP
KC 1969 396 375 Chevy II SHP
KD 1969 396 375 Chevelle SHP
KE 1969 396 375 Camaro alum hd
KE 1969 396 Chevy II questionable
KF 1969 396 375 Chevelle SHP
KG 1969 396 375 Chevelle alum hd
KH 1969 396 375 Chevelle alum hd
KI 1969 396 375 Chevelle alum hd
CKO 1970 396 375 Camaro L-78 SHP
CKO 1970 396 375 Nova L-78 SHP
CKO 1970 396 375 Chevelle L-78 SHP
CKP 1970 396 375 Nova L-89 SHP
CKP 1970 396 375 Chevelle L-89 SHP, alum hd
CKQ 1970 396 375 Nova L-78 SHP
CKQ 1970 396 375 Chevelle L-78 SHP

CKT 1970 396 375 Chevy II L-89 SHP
CKT 1970 396 375 Chevelle L-89 SHP
CKU 1970 396 375 Chevelle L-89 SHP
CKU 1970 396 375 Chevy II L-89 SHP
CLA 1971 396 300 Camaro LS-3
CLA 1971 396 300 Chevelle LS-3
CJL 1970 396 350 Camaro L-34
CJL 1970 396 375 Camaro L-78

those are all the 1969-70 engines and ratings
pull the pan and see if its a 4 bolt because it was casted with either one so if your buying look before you pay to much

In 69 the 396′s came in 3 horsepower configurations, 325hp, 350hp and 375hp. The Indy pace cars got the 375hp motor I believe.

My favorite web site for this gives only this info:

3955272….396…….69……2 or 4 bolt

http://www.mortec.com/

Here you go, this is a website that has ALL kinds of info on casting numbers!
http://www.mortec.com/castnum.htm