can somone please check this engine id #

[67cst]

i got this off the the 350, im curious to the hp rating even though it is just a beater

k03 29 tbc

t.i.a

Derek

[Randy70C-10]

Do you have the casting # from the back, drivers side top where the tranny bolts up?

[67cst]

umm i could go look but its caked with years of greasy crud, this number was off block where the passenger side head bolts up, last time i got one checked the # told me the hp...

[lukecp]

1970 350 4bbl, C10-C30; 255hp
1970 350 4bbl, K10-K20; 255hp
1979 350 4bbl, C10-C20; 165hp

Basically, a 350 truck motor. Proably a 4bolt with a steel crank too...maybe even a 010-020 block

[67cst]

my truck is a 71 though, so would it be the 1970 c-10 to c-30 255 hp motor?

[lukecp]

That is what nastyz28.com says according to the suffix code. It could be any 3 of those motors, but they are all basically the same thing besides the '79 motor would be more smogged out (crappy heads, low compression). To pinpoint the motor, you need the casting # that Randy mentioned.

There should be very little difference between a '70 and a '71 motor. Both should be around ~250 hp. Your truck may not have the original engine in it, being that it is 32 years old, it could have been swapped out any time.

[67cst]

i bought the truck from the original owner in my dads town ( where i grew up) when my mom was a kid she can remember when stan bought the truck, just ironic how its in her driveway now and this is 32 years later. everything is original on the truck, ill get those other casting numbers tomorrow