Comedics

YEs, good question. How do I know which I need?

Here is a description of the 1410,1411 and 1412 gaskets.

http://shop.store.yahoo.com/gofast/headexgas1.html

BT

This should help. I installed the 1410's on my stock heads last year. I think all of the above mentioned will work fine
I found this on http://www.wisespeedshop.com/Fel-Pro.htm

#1410 Big Block Chevy-1.88'' x 1.88'', Square, Stock & Early Aluminum Heads - $18.21
#1411 Big Block Chevy-1.94'' Dia., Round, Most OE Aluminum Heads - $18.21
#1412 Big Block Chevy-2.13'' Dia., Round, Large Race - $18.21

Just make sure to use Square on Square and so on. I used 1411 (rounds) on stock iorn heads with my Sanderson and 1/2 of the leaked replaced a month later with 1410 and all was good Rag's

I've been using graphite Mr Gasket.
They have hangers on them so they are easy to install.
Never any leakage issues.

More info please, I love those Gils but the price--yuk. Where and what number and supplier ect??

JUST TRY THE MR GASKETS GRAFITE.
Believe me you won't want anything else.

Auto Zone has them and they're inexpensive.