Stroke measurement

Paul Merolla · 10-11-2009, 09:08 AM

I have a feeling this is a stupid question, but I can't seem to figure it out on my own so here goes....how does NHRA measure stroke in teardown? I'm disassembling and measuring the "used but freshened" 327 I bought for my Nova and haven't seen a dial indicator that goes that far. Also, the spec sheets say .002 in the hole and .018 head gasket...sounds a little tight to me. I realize that's a minimum, but how close is too close?

10-11-2009, 09:08 AM	#1
Paul Merolla Senior Member Join Date: Dec 2001 Location: Papillion, NE Posts: 610 Likes: 242 Liked 293 Times in 65 Posts	Stroke measurement I have a feeling this is a stupid question, but I can't seem to figure it out on my own so here goes....how does NHRA measure stroke in teardown? I'm disassembling and measuring the "used but freshened" 327 I bought for my Nova and haven't seen a dial indicator that goes that far. Also, the spec sheets say .002 in the hole and .018 head gasket...sounds a little tight to me. I realize that's a minimum, but how close is too close?