We built a similar combination to this about a year ago and yes it is a great combination but saving a ton, compared to what? Please tell the rest of the list what the customer had in this engine when they were through. This is not your typical $3000 engine rebuild folks. You are looking at anywhere from $7000-10,000. You don't build an engine like this cheap. If you do, it will break! This is a long stroke, big bore engine that requires a lot of work to make it work right. Not getting down on you, but saving money was the whole premise behind the post. The only thing you might have saved a dollar or two on where the rods and that is only because you wanted a 6" rod for the project. Every thing else was increased in price to do this. Also, consider the bore size, 4.280 is .115 over bore. How many blocks out there can go this big without filling the water jackets with cement. Nick Alfano Message-ID: <20050129232545.76397.qmail@xxxxxxxxxxxxxxxxxxxxxxx> Date: Sat, 29 Jan 2005 15:25:45 -0800 (PST) From: lynn peterson <kustomkemps@xxxxxxxxx> Subject: Re: GM Forged Rods on Turned 401 Cranks To: mail@xxxxxxxxxxxx Not only do you save a pile of money, you reduce the bearing speed, reduce reciprocating weight, and increase the stroke all at one time. Just takes a little math work to figure it all out. For example, a 401 crank cut to a 2" SCB small journal size will offset grind to ~3.92, somewhat less if it has been previously ground. With a 4.28 overbore, custom pistons with a CH of 1.123", and 6" rods, a 451CID engine results. We have built several of thses with great success. Of course, there are many other possible combinations. regards, L. Peterson, president, Kustom Kemps. Portland, Or