I'm dropping a donor motor into my 69. The engine came from a 1970 convertible with a c4. The guy I bought it from said it was a 351. Looked just like the one that was my 69, aside from the Holley Street Dominator and 4 barrel Holley that was on the one I purchased. So heres the catch. I used his block since it had only 68,000 miles and no rod knock, and used my heads because the bolts broke in his. I noticed that his head bolts are smaller than mine. So now I have a feeling its a 302, and with the c4 in there I'm almost positive. But anyway, If i am correct with the above, I should still be able to use the heads off my 351 right? What about the manifod and distributor. Thanks