[Slow-V6]

Well I am in the market for a Shortblock. Was going to have one built but it will be a little to pricey for me @ 3600.00 for a stock LS1 with forged rods and pistons. I decided to see about buying a already built shortblock and have the machine shop work my heads a little and assemble the complete motor. I have narrowed it down to 2 shortblocks and just want to get everyones impressions on them..

1st will be a 347 motor. It has Diamond pistons, Eagle Rods and a stock Crank. With my 243 heads Compression ratio will be around 9.5:1. Perfect setup for a blower in the future. The motor was assembled by a Machine shop in FL and is a balanced rotating assembly. Comes with Double roller Timing chain, Oil pump, ARP 2000 rod bolts, Arp Main studs. front and rear covers as well. I have a ton of pics on this motor. This one is 2650 shipped coming from Mississippi. I like the motor but dont know personally the shop that built it.

2nd is a 383 LS1. Diamond pistons, Eagle rods, and Eagle crank. The motor was built by a very good shop in Virginia Beach that I have dealt with in the past. The motor made 480rwhp on motor. The Short block comes with the Cam, and pretty much everything except the intake, Heads, and oil pan. The compression ratio with my heads will be around 11.0:1. The only downside is that the motor has 7k miles on it and has been dynoed and beat on a little. That could be a good thing as everything should be broke in. The oil pressure is 35psi at hot idle and rises up to 70psi depending on throttle. The seller is building a big cubed motor for a supercharger. He said he will send a video of the motor running before he pulls it and will send a ton of pics. Not sure if it has ARP main studs or stock GM main cap bolts. The price on this motor is 2650.00 shipped. It is coming from NY state.

I am leaning towards the 383 because it makes really good power and is a really good price. The only thing is that it is used. That might be a bad thing or could mean that it has been broke in and ready to run! I know the shop that put that motor together and know they do great work on LS1s. The other motor is brand new which would be cool because I can break that motor in from 0 miles but I have no Idea about the shop that built that one except for members from LS1tech that have posted about how good that machine shop is.