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glock35ipsc · 07-23-2010, 05:03 PM

If I remember correctly

, Gen III engines are 24x, Gen IV engines are 58x, except for 05-06 LS2's which are Gen IV engines but use a 24x. Black = 24x, gray = 58x.

07-23-2010, 05:03 PM	#8
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	Re: Pistons or heads? If I remember correctly , Gen III engines are 24x, Gen IV engines are 58x, except for 05-06 LS2's which are Gen IV engines but use a 24x. Black = 24x, gray = 58x. __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 07-23-2010 at 05:04 PM.