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Alan Roehrich · 06-23-2007, 01:24 PM

Arnold, I was told by a couple of sources at NHRA that we could use an iron block in Stock for the ZL-1. We have a GM 2nd generation aluminum block, we're told it is legal. We're also told that GM is not selling or making them right now. Also, that block comes from the factory (in assembled crate engine form) with ARP head studs, which are not legal for NHRA Stock, according to what we've been told, and ARP doesn't make head bolts for it either, they require that you order a custom set. At least that's what GM and ARP told me.

Alan Roehrich

Bring "AA" classes to NHRA Stock Eliminator!

06-23-2007, 01:24 PM	#3
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,116 Likes: 1,573 Liked 1,832 Times in 415 Posts	Arnold, I was told by a couple of sources at NHRA that we could use an iron block in Stock for the ZL-1. We have a GM 2nd generation aluminum block, we're told it is legal. We're also told that GM is not selling or making them right now. Also, that block comes from the factory (in assembled crate engine form) with ARP head studs, which are not legal for NHRA Stock, according to what we've been told, and ARP doesn't make head bolts for it either, they require that you order a custom set. At least that's what GM and ARP told me. Alan Roehrich Bring "AA" classes to NHRA Stock Eliminator! __________________ Alan Roehrich 212A G/S