Quote:
Originally Posted by Jesse Knapp
If one wants to build this engine for stock eliminator is the 3933163 aluminum intake available new or would one have to look for an old one? Of the head castings listed, 840,291, 858, and 391are any of these available new? Which is the better head castings? Is the bow tie block significantly better than a regular block? I know in superstock there are advantages to using them, but in stock there is only so much one can do. I did hear the Holley is available new. I would appreciate an answer. Thank you, Jesse
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No, the 163 is not available new. It is commonly found on the Internet for sale. It has been superseded by the 359 intake (it is available new from GM), both at GM and by NHRA in most cases. No, none of the cast iron heads are available new. The last 291 heads were cast 8 years ago. Be prepared to search for a nice set, and pay $1800 or more, BEFORE you have $1500 (or more) of work and parts put in them. In most cases, the iron heads can be replaced by the 401 casting aluminum head for a 10HP penalty, a few cars have done this successfully. Yes, the BowTie block is better. However, it will still need the same amount of blueprint machine work as a production block. You don't WANT a new Holley. You want an OLD 3310, and you want to send it to Clark Holroyd (you want to buy his rocker arm system as well, do not race without it).