GIZMO I stumbled on it once but can't find it now, the IHRA acceptable castings list. Can you post or PM me a link there is a guy on the b-body board apparently looking to get into this sort of thing asking about the 95 b-body correct intake. I told him I thought 630 but would like to offer him some concrete info.

 

The link to the NHRA specs. is below. The LT1 casting numbers are not close to correct for the year claimed. Up until a few months ago a 1993 intake was legal on a 1998 spec. LT1! I think I probably have about five 1993 intakes that are no longer legal (unless I want to run the old front end). The only good way to know what the dates for each casting are would be to check with owners of original cars.


http://www.nhra.com/tech_specs/engine/

 

I have a set of 561 heads for sale. They have had a valve job and .004" milled from the face. NO PORTING or other 'improvements' have been done to them.

They are from a 97 TA with less than 50K miles. I had them worked up and intended to put them on my Impala SS but sold the car before I did the swap.



More pictures available on request.

Make offer, actual shipping cost from Toledo, OH extra.

Thanks,
Tony Kirk
419.376.4536