motor # ? - Chevelle Tech
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post #1 of 5 (permalink) Old Mar 31st, 08, 4:28 PM Thread Starter
Join Date: Mar 2008
Location: l.i ny
Posts: 12
motor # ?

i have a 66 chevelle, how do i look up the motor #'s that are on the front of the block, ?, i want to see what year motor it is, & size. there are 2 rows of numbers on the front , On the back of the motor, the # is 3970010, but im lost trying to find the front # info .

the front numbers are


Last edited by speedracer565; Mar 31st, 08 at 4:44 PM.
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post #2 of 5 (permalink) Old Mar 31st, 08, 4:33 PM
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Re: motor # ?

Post them Mike.
Heres a link that will help with the ID.

TC #3238
ACES #7490
My Site
The Rebuild

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post #3 of 5 (permalink) Old Mar 31st, 08, 6:10 PM
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Re: motor # ?

Its a 1977 GMC truck engine, 350cid

V - Flint Engine Plant
05 - May
02 - Day
TKB - 1977 350-165hp man trans, RPO LS9, 4-bbl carb

t7b521452 Con Vin
T - GMC Truck Division of GM
7 - 1977
B - Baltimore Assembly Plant
521452 - Trucks serial number, last 6 of VIN
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post #4 of 5 (permalink) Old Mar 31st, 08, 6:28 PM Thread Starter
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Re: motor # ?

thank you !!! think its a 4 bolt main???
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post #5 of 5 (permalink) Old Mar 31st, 08, 6:42 PM
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Re: motor # ?

1969-79 3970010 350 185 370 2 or 4 bolt main car, truck, Vette
Dropping the pan is the only way your gonna know fer shur
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