My 67 has what I was told was a 350 crate engine. Guys on the C2 forum said 77 350

I know it has four bolt mains, dynos at 300/300 at rear wheels and mild hydraulic lifter cam.

i hope I have attached pics of block casting number, cyl head casting, and bore scope that seems to me to be slightly dished pistons.

I am hoping to find out just what I have, and the cheapest way to gain some hp. Not racing, just a little more punch at stop lights.

I was thinking vortec heads with 64 cc chambers before I saw the dished pistons.

Thanks for your help

Poor note scope image

 

How about a picture of the stamp pad? Just in front of passengers side head. Dished pistons is L48, 2 bolt main. L82 is flat top pistons, 4 bolt main.

 

Crate engine so that info is superfluous.

 

Though it's hard to tell from the condition of it, the casting number appears to be 14016379(?). If so it's a 78-85 350 block used in various Chevrolet cars and light trucks (hopefully the last 3 digits are 379 and not 375 or 376 which would make it a 80's 267 block ). The 462624 heads are 79-85 350 heads with 1.94 intake & 1.50 exhaust valves. The date on the heads (A250) identify them as 1980 heads (A - January, 25 = 25th day, 0 = 1980).

My guess is that it's a standard 350 out of a 1980 Caprice, Camaro, or C10 pick up. It could be a Target Master crate engine sold by Chevrolet in the late 70's and early 80's, and later replaced by the Goodwrench 350, but based on the casting number I don't think so. The Target Master's usually had a block casting number starting with 1006xxxx and are easy to identify by the "Hecko en Mexico" (made in Mexico) cast in the block near the casting number. The Target Master was a cheap (they sold for $900-$1100 when new) 4 bolt main 350 crate engine originally intended to be a reasonably priced replacement 350 truck engine that quickly became popular as a replacement 350 for all kinds of Chevrolet powered cars.

The info on the stamp pad on the right front of the block might identify exactly what it is, but I don't know if it would make that much difference. Other then the 80 Corvette L-82, all 1980 350's, including the Target Master are basically the same engine, with the only difference being whether it had 2 bolt or 4 bolt mains.

 

How about pics of the complete engine with the air cleaner removed and anything else you know about it.
Plenty if info here but several way to go.....help us narrow it down.

Jebby