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#1 |
i love summertime
Join Date: Jul 2002
Location: Kelowna BC
Posts: 4,303
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can someone decode another small block for me please?
this time its for my dads 72 3/4 4x4 he just picked up, we know it isnt original but just curious as to what exactly it is
K0612CMJ Thanks
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1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724 |
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#2 |
Rusty Rockerfeller
![]() Join Date: May 2003
Location: South Georgia
Posts: 1,631
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1974 CMJ 350 t4OO police - 4 full size
1980 CMJ 305 automatic trans. H - - full size/Camaro www.teufert.net Last edited by bigunde; 11-18-2004 at 10:13 PM. |
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#3 |
i love summertime
Join Date: Jul 2002
Location: Kelowna BC
Posts: 4,303
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we know its a 350, but what are the specs on it? like hp and torque? does it have a 4 bolt etc.....
thanks Derek
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1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724 |
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#4 |
i love summertime
Join Date: Jul 2002
Location: Kelowna BC
Posts: 4,303
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ttt
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1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724 |
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#5 |
my gas saver
Join Date: Sep 2003
Location: Clarksville, TN
Posts: 2,046
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i`ve never decoded one where it says 4 bolt or not. i think you have to drop the pan to be sure. the #`s should be the same for both.
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85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback |
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#6 |
i love summertime
Join Date: Jul 2002
Location: Kelowna BC
Posts: 4,303
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last one i got i was told the year of the motor, hp and that it was a 4 bolt...
anyone at least know the hp on this motor?
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1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724 |
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#7 |
Registered User
Join Date: Sep 2003
Location: TwentyNine Palms Ca
Posts: 43
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USMC "Pray for peace, train for war" (The Beast) 68SWB Stepside Original 325hp/327 3:73 Posi Lowered 3.5/4.5 ![]() |
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#8 |
Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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You cant really go by casting numbers on the main bolt count Ive had a 3970014 4 bolt block and still have a few 3970010 2 bolts Both are numbers many people swear to be 2 bolt and 4 bolt 010 being the four bolt.
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#9 |
i love summertime
Join Date: Jul 2002
Location: Kelowna BC
Posts: 4,303
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68327-i couldnt find it there...last time i got someone to do this for me it was like 5 minutes later i had an anwser...i wonder why its so difficult
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1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724 |
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#10 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Information on engines can be looked up a number of ways, but some of the engines you need to check everything available.
The suffix code seems to work pretty well on the older engines but on the newer engines it does not work that well. (Note bigunde's post of the CMJ suffix where it could be a 350 or a 305 engine). Using the suffix code, block casting number and the date code will help but I don't know of anyway that codes will absolutely tell you whether you have a four bolt or not. If you want to know about the four bolt, pulling the pan is the only sure way. Jim |
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#11 |
Registered User
Join Date: Dec 1999
Location: Old Mission, MI, USA
Posts: 2,510
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My book list it as a '74 - '76 police package 350. HP is not listed. Max net hp for a 350 in this era was about 250 for the Vette engines (245 for Camaro), and most of the car engines had 155 - 165 net hp. I am not sure what kind of tune they offered in the police package.
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Tim |
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#12 |
Rusty Rockerfeller
![]() Join Date: May 2003
Location: South Georgia
Posts: 1,631
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i had one of those cmj "police" 350's before,it was a 2 bolt main,but that does not mean they all were.
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#13 |
i love summertime
Join Date: Jul 2002
Location: Kelowna BC
Posts: 4,303
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good enough, thanks for all your help guys
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1967 shortbox stepside Chevy, 365 hp 327, th400. GLOVE BOX LIGHTS FORSALE, click link for info http://67-72chevytrucks.com/vboard/s...d.php?t=273724 |
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#14 | |
Registered User
Join Date: Feb 2000
Location: Center City, MN, USA
Posts: 3,254
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Quote:
I still don't know why so many people get hung up over 2 bolt verses 4 bolt blocks. Unless you rev it over 7 grand all the time either will last a good long time.
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'70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN |
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#15 | |
Account Suspended
Join Date: Dec 2003
Location: Texas
Posts: 2,686
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Quote:
Yeah i know right ... Its beyond me Alot of high performance engines came out in a 2 bolt main configuration. They seemed to hold up just fine. |
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