What kind of motor do i have - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jjg · 03-20-2002, 05:17 PM

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

wrathchild · 03-20-2002, 05:22 PM

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).]

wrathchild · 03-20-2002, 05:25 PM

http://www.nastyz28.com/

------------------
<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 !!!

*Fast68Chevy* · 03-20-2002, 07:54 PM

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

------------------
-71/C-10(thx teeitup and crews!)350 4+4/CH465(thx 71Chev, GMCPaul, and CPNE)longfleet bed(thnx meathead95)!still building it-
-'84 Z28(Z28) 1G1AP87GXEL100000 with H.O. 305/4bbl/190net/hp(L69) 3.73 rear(GT4/YC4) 700R4(MD8-MXO) & other goodies

-79 G20 pass van, 350/th350/10bolt,
paint is overrated
Randy- Lincoln, IL
randy@ccaonline.com
© RSS Enterprises 2000

69 longhorn · 03-20-2002, 08:00 PM

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

kaycee · 03-20-2002, 08:13 PM

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

jjg · 03-20-2002, 11:31 PM

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

03-20-2002, 05:17 PM	#1
jjg Registered User Join Date: Mar 2000 Location: elk horn, ia, USA Posts: 554	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

03-20-2002, 08:00 PM	#5
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	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 __________________ http://community.webshots.com/user/hotrodhorn

03-20-2002, 08:13 PM	#6
kaycee Registered User Join Date: Jan 2000 Location: Wyoming USA Posts: 2,446	My book show's it as 67-76 350 or a 302 came in 2 or 4 bolt mains. __________________ 2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327

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03-20-2002, 05:22 PM	#2
wrathchild LIKE 'EM BIG AND TOPLESS Join Date: Dec 2000 Location: Frederic,Michigan Posts: 596	That # is either a 350 or 327..you need the # from front of passenger head to decode any deeper info.. ------------------ <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 !!! [This message has been edited by wrathchild (edited March 20, 2002).]

03-20-2002, 05:25 PM	#3
wrathchild LIKE 'EM BIG AND TOPLESS Join Date: Dec 2000 Location: Frederic,Michigan Posts: 596	http://www.nastyz28.com/ ------------------ <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 !!!

03-20-2002, 07:54 PM	#4
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	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 ------------------ -71/C-10(thx teeitup and crews!)350 4+4/CH465(thx 71Chev, GMCPaul, and CPNE)longfleet bed(thnx meathead95)!still building it- -'84 Z28(Z28) 1G1AP87GXEL100000 with H.O. 305/4bbl/190net/hp(L69) 3.73 rear(GT4/YC4) 700R4(MD8-MXO) & other goodies -79 G20 pass van, 350/th350/10bolt, paint is overrated Randy- Lincoln, IL randy@ccaonline.com © RSS Enterprises 2000

03-20-2002, 11:31 PM	#7
jjg Registered User Join Date: Mar 2000 Location: elk horn, ia, USA Posts: 554	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



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