My vette had the engine rebuilt about 1000 miles ago by the PO. He mentioned that it had larger heads that were not original. I was thinking of adding some performance to the engine (seeing it had just been rebuilt) with new intake and cam if the heads were decent performance heads.

This weekend I checked the heads (they look in good shape), they are serial number 333882. I checked on a couple of websites and some folks say that this is not a good performance head, and has the possiblitiy of cracking near the exhaust ports. Have any of you heard this before?

So now I'm wondering if it's worth putting any money into this 2 bolt engine. So what do you think:

1. Should I get new heads (if so which ones), upgrade the cam, and intake? Or...

2. Should I get a crate engine?

My goal is not to keep it stock (look close to stock) good performance for street, maybe strip every once in a while, but street is what it is for. Also would like to use it as a driver when nice.

You can certainly build a good engine with your 2-bolt, but unless you're into keeping the original engine, a crate motor is probably most cost effective. There is a huge selection of crate motors out there to choose from, all depending on what you want out of the engine and your wallet.

GM Performance has a great selection, as does Edelbrock and other suppliers. Look at a Summit Racing or Jeg's catalog for some ideas.

Its hard to beat Edelbrock RPM heads and intake for a good streetable car with good get-up-and-go with the right cam. I had rebuilt my engine but the stock heads were pretty bad so I added the heads later, now I wish I ha done it from the start, then I would have gone with a little biger cam. I don't race so a motor that will handle more then 5500rpm's would be a waste. 0-60 times is all I'm interested in. As it is now, I can break the tires loose anytime I want.

Well if you want to keep it looking stock I would look at a set of Dart Iron Eagle heads.