I am looking for ARP flywheel bolts for my '97 Z28. The ones for a SBC application come in 2 sizes: 7/16-20 X .680 and 7/16-20 X 1.00. Which length for an LT1 car?

 

no sure how long they are but i just got new ones back in jan they make one peice rear main seal and two peice rear main seal either one will work. i looked at both the only diffrence is head size.

http://web.camaross.com/forums/showthread.php?t=334797

i ordered some the only diffence is the head size and either one will work you get a bigger head with the two peice ones.