What kind of motor do i have
 

hey guys i know there is site i can check this but i have forgotten it so if one of you could decode the number i would greatly appreciate it. I got this on the back of the block on the drivers side.
3970010
thanks
John

That # is either a 350 or 327..you need the # from front of passenger head to decode any deeper info..

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Check out my '70K5Blazer 350/205 (project 35"BOGGERS)4"suspension/3"body installed,starting bodywork&paint
86K5BLAZER 454ci.350/205 case 4" susp.,3"body 3/4ton4.10s 38"Swamper sx
83CJ-7 304ci.edelbrock 600 and performer intake ,headers 31"Swamper sx
'86 GMC plowtruck (BOSS V-PLOW)
"Welcome to where time stands still
No one leaves and no one will
Moon is full,never seems to change
Just labeled MENTALLY DERANGED..."


"THE INTIMIDATOR" gone but never forgotten !!!


[This message has been edited by wrathchild (edited March 20, 2002).]

http://www.nastyz28.com/

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<A HREF="http://communities.msn.com/OurMudToys
I" TARGET=_blank>http://communities.msn.com/OurMudToys
</A>
Check out my '70K5Blazer 350/205 (project 35"BOGGERS)4"suspension/3"body installed,starting bodywork&paint
86K5BLAZER 454ci.350/205 case 4" susp.,3"body 3/4ton4.10s 38"Swamper sx
83CJ-7 304ci.edelbrock 600 and performer intake ,headers 31"Swamper sx
'86 GMC plowtruck (BOSS V-PLOW)
"Welcome to where time stands still
No one leaves and no one will
Moon is full,never seems to change
Just labeled MENTALLY DERANGED..."


"THE INTIMIDATOR" gone but never forgotten !!!

all we can really tell you- without the stamping code off the front- is that its a 69-79 block and is 4 bolt if its a truck block(stamping code wil tell you that much)

the pad to look for and clean off is just above the timing cover


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-71/C-10(thx teeitup and crews!)350 4+4/CH465(thx 71Chev, GMCPaul, and CPNE)longfleet bed(thnx meathead95)!still building it-
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-79 G20 pass van, 350/th350/10bolt,
paint is overrated
Randy- Lincoln, IL
randy@ccaonline.com
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3970010 is for sure a 4 " bore....as far as 4 bolt main,chevy did some different stuff through the 70s. A 3/4 ton ,or a 4x4 should be a 4 bolt,but a 1/2 ton is a story of its own..........69 longhorn

My book show's it as 67-76 350 or a 302 came in 2 or 4 bolt mains.

thanks guys for the info the guy i got the motor from said it came out an early 70's el camino so he might have been right it sounds like, well i will check the numbers by the timing cover tomm, and hopefully will give some more info. i will post the numbers i find.
thanks again.
John