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This engine showed up yesterday and I was told that it needs a new connecting rod. I'm trying to get together an iron LS1 from the spare parts I have lying around and my original plan was to mill my 241's but since this engine has 799's I'm thinking these will be a better performance head than the 241's. I'm pretty sure this is an LH9 due to the fact that it has VVT.
Can't beat free and hopefully the extent of the damage will not be too bad.
Here's what I've found so far on the LH9 engine spec's but I won't know for sure until further inspection.
LH9 Rotating Assembly SpecsPiston Material Hypereutectic Cast Aluminum Alloy Piston Style Flat Top with valve reliefs Piston Volume 3cc Wrist Pin Dia. 0.9431 in. (Full Floating) Connecting Rod Material Powdered Metal Connecting Rod Style I-Beam Connecting Rod Length 6.098 in. Connecting Rod Housing Bore 2.225 in. Connecting Rod Bolts M9 x 1 x 43 Connecting
Rod Part Number 12649190 Connecting Rod Casting Number (last three digits) 143 Crankshaft Material Cast Iron Crankshaft Part Number
(Last 3 Digits) 12588614 Crankshaft Casting Number (last three digits) 216 Crankshaft Main Journal Dia. 2.559 in. Crankshaft Rod Journal Dia. 2.100 in. Reluctor Wheel 58x
Just pulled the heads and this engine has flat top pistons so it must be an 07-09 LC9. We're now going to scrap the iron LS1 build and focus our attention on this block now. This will be going into an 01 Chevy extended cab pickup truck and looking for camshaft recommendations. Wanting to make as much power and torque as we can on a stock engine and utilize the LS6 beehive springs. We'll also be upgrading to a 3,000 stall on the 4L60 with 3.73 gears. Still want to be able to haul the hay if need be.
I'll determine the P-V with the current cam to see where I'm at. From my research it looks like the stock cam is 196/201 .481/.481 116+2 LSA but I'm thinking a 222/232 .595/.587 108+3.would be a good choice.
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LH9 engine? 
