Bill71

Can factory parts be used to put a dry sump on a stock LS3. My concerns stem from reading some posts that say these engines do not like sustained hi rpm/hi g-load driving. If dry sumo is not an option will an Accusump provide the margin of safety that is needed?

Che70velle

iTrader: (6)

yes sir Bill, the grand sport corvette comes with a dry sumped ls3 engine. you can indeed buy the parts directly from gm.

427

iTrader: (3)

The crank needs a longer nose to run factory stuff, but it all bolts up.

Kurt

427 zeo6

Complete dry sump LS3 for sale on Corvette Forum right now for a decent price. Look under C6 parts accessories for sale thread. 3/4 motor and all external plumbing

Bill71

Maybe I'm being dense here but I cannot find the ad. Can you provide a link?

Thanks.

93Polo

iTrader: (5)

Does anyone have a part # for the LS3 dry sump crank?

I assume the Dry sump LS3 doesn't have the titanium connecting rods like the other 2 dry sump motors.

sr71bbjr

iTrader: (52)

That would be mine.Posted here as well.

https://ls1tech.com/forums/parts-cla...longblock.html

427 zeo6

NO it has powder metal rods but crank is forged 4340 steel. Change the bolts to ARP and good to go to 7K RPMs in my book.

jetsbaby

This sounds like a "cheaper" way to go if you don't have the funds for a LS7..What does a new LS3 dry sump go for and who has it?

427 zeo6

Here is a link to a vendor from Corvette Forum. $4800 wet sump $6800 dry sump, probably because of hand assembly at GM Tech Center just like the LS7 and ZR1 motors. Link: http://www.partstaxi.com/parts/2011/...E&group=ENGINE

Remember, you will still have to buy oil tank and other parts like an intake. I scored my LS3 intake complete with injectors, fuel rails, gaskets and mounting bolts off Ebay for under $300 but, seems like the price is going up a little (they are removed for Edelbrock supercharger installations.)

If the LS3 motor on the Corvette forum is still there I would talk to that seller first. Good Luck with your search