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Eric Smith · 10/1/15, 11:46 AM

It appears the Donovan 350 block may be either 4.000 or 4.125 bore. Does the D indicate what it may be? It's not mine and I'm not there to measure it.

10/1/15, 11:46 AM	#1 Donovan 350 D Block
Eric Smith Senior Member Join Date: Nov 2011 Posts: 253	It appears the Donovan 350 block may be either 4.000 or 4.125 bore. Does the D indicate what it may be? It's not mine and I'm not there to measure it. _________________________________________________ Last edited by Eric Smith; 10/1/15 at 9:39 PM.