ok i have an engine i thought was somthing special and its not, im looking for the cheapest but best setup to get together for a chevy s10, i have a complete block and heads and i also have a assembled set of heads from a 305, heres the info:

block:
casting i have is 3970010
partial vin i assume is 18s300861
also found on block:
vo607chc
40 gm
f 6 8
010 s
s
going from the stamp on front of engine to get V0607CHC makes it a flint june 7th
year rpo ci appl vin hp bbls body
1973 CHC 307 tur hydro, Calif NB2 115 2 F B X
1975 CHC 350 m/t, h/p T L82 205 4 Vette
1976 CHC 350 m/t, h/p X L82 210 4 Vette
1980 CHC 350 auto trans. L - - full size
and going by the casting on driver rear bellhousing flange 3970010 which is closest so far, i have searched quite a bit but cant find a 3978010 or 3970910 etc
casting cid yr mains appl
3970010 302 69 4 Z-28 Camaro
3970010 327 69 2 Trucks and industrial
3970010 350 69-80 2 or 4

btw it is a 2 bolt main
crank is 3932442
dipsticks on the drvr side
looked up the crank: 1969-85 3932442 305,350 cast large two in 1979-82 267
======================================
350 heads:
3986339 71' 307/350 74cc chamber
and other numbers:
gm 16
00nv4
c271

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305 heads i have:
14014416...80-86...305..........1.84"/1.5" valves, 58cc chambers

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i emailed mortec.com here is what they said:
The block casting number is 3970010.

Yours is a 1978 model 350/170hp originally installed in a Camaro with a
T-350 and a four barrel Quadrajet carb.

The 1971 model low performance heads have been swapped on to this motor.

ED
MorTec



so, what to do? what to do?