Recently my 99 z28 starting making a taping noise that sounded like it was coming from under the intake and it got louder and faster the more the rpm's increased.So I was on my way home to park it when I hit a patch of water and the tires broke free and the car reved to about 3,000 rpm. The oil pressure went from 40 or so to none and the motor stalled and will not turn back on. What could this be?

 

sounds nasty! will it roll over fine, just not start? what kinda mods does it have?

rolling over fine, and not starting is hard to imagine if it was running fine before.

was the water like 3" or 3' lol ?

 

I have longtubes,ory,flowmaster,cutout and nitto's and the car was running fine before this happen. The care will not turn over at all. And when I coasted it in to a parking lot I looked down and all the oil came out of the car that was intill I had it towed to my house then it spit out more oil on the flatbed. I need to find out what is wrong so I can put it back together. I guess it's not all bad now it's time to make it better right?

 

Hydro lock? or just a plain rod/bearing failure. But if oil came all out that indicates cracked block.

 

If I cracked the block did it take anything else out with it like the crankshaft or the pistons. I'm having it checked out by a mechanic right now to see what went wrong. If the block is trash and I have to get a new one any suggestions? I was thinking about the slp 402 but I don't think I want the extra weight of the iron 6.0 block.

 

Lingenfelter Engine Assemblies


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Lingenfelter LS1, LS6 350 CID Short Block Special - In stock ready to ship

Component Preparation
All internal parts are de-burred, hand washed & inspected
Pistons, pins and connecting rods - pin fit to specification
Crankshafts - computer balanced to within .2 grams or less per inch.
Crankshaft - oil holes are chamfered
Crankshaft - bearing surfaces are micro polished

Cylinder Block Blueprinting
Align hone checked / machined
Precision honed on a Rottler HP6 with torque plates
Hand de-burred, bolt holes are checked and re-tapped

LPE Blueprint & Professional Assembly
Includes verification to LPE specifications of the following items

• Cylinder bore diameter • Lifter bore diameter
• Cylinder wall taper • Piston skirt taper
• Piston diameter • Piston to wall clearance
• Deck height of block • Piston ring end gap
• Bearing clearances • Rod side clearance
• Crankshaft end play • Bolt torque specifications

Parts included in assembly:
• GM LS1 aluminum block, - 3.900" bore
• Water jacket plugs, oil galley & cam bearings
• Mahle forged aluminum pistons - coated
• Mahle moly file fit rings - 1.5mm, 1.5mm, 3.0mm
• GM LS1 crankshaft
• GM LS1 connecting rods
• Speed Pro heavy duty rod bearings
• Speed Pro heavy duty main bearings

Short block price as shown $2,095.00*
Short blocks in stock now and ready to ship.

* Plus core charge $800.00 - refundable after we receive and inspect your core.

Camshaft & Timing Set Upgrade
If you chose a Lingenfelter camshaft and timing set with your short block we will install and professionally degree the camshaft at no charge.

 

Thanks for the help sounds like the way to go. But is it ok to use stock heads with this bottom end?

 

Of course, these are 346/347 cid's