3986339
d23 71

what have I got?

I know that they mad 300hp on a 350 with flat top Trw's

71 model 307-350 74CC's

IF I were to sell them on E-bay are they worth anyting? There is nothing wrong with them.

I doubt you would get much for them. Here's what they originally came in:

1971 Fullsize 350/270hp (low compression)
1971 Nova 307 200hp
1971 Chevelle, Camaro 307/200hp

I am pretty sure that they are origional to the block. The block decoded as a L-65 240hp 350 out of a 71 Camaro. THe engine is in great shape the cyclinders look almost brand new.

A 71 Camaro 350/245hp would have come with 3973487 heads with 1.94 valves.

The heads you have are definately not original to a 71 245hp 350.