Holley has made an oil pan that fits my Porsche 928 LS1 but the machine work done on sealing surface is poor.
If you run your finger around one of the corners you can feel a bump.
Holley emailed me and assured me that it hasnt had anyone complain about leaks.
At $400, leak or not this pan should have been as good or better than the seal surface of a GM pan.
I found the same bump on the Holley oil pan presented at the last SEMA show so Im thinking its on all their oil pans.
Before I installed the pan I sanded down the bump on the pan to assure me that there will be no leaks and that it will support the block square.

emails with Holley are available for you viewing
jojomanx@yahoo.com

 

Did yours leak?
Did you take images or measurements, or just the ones your posted of the one at the vendor show?

Did Robin decline a return? Ref:
https://ls1tech.com/forums/new-ls1-o...-question.html

 

I have a new one in the box in my garage and I just looked at it and it looks fine on all the mating surfaces? I paid like $380.00 shipped from Amazon and was happy and thought i got a good deal till i saw this. Just my luck

AutoPartsway.com has it for $319.51 shipped, scroll to the bottom of that page to see it.

http://www.autopartsway.com/search.c...holley_oil_pan

 

No leaks at all with mine..............


Ken

 

no leaks here

How big of a ridge are we talking about. .005 or .030

Tim

 

Mine is good also. I took advantage of the Autopartsway.com price. $319.00 to my door. Seemed kinda odd to me that they are located in NYC...

 

LOOKS LIKE THE GASKET WILL KEEP THE OIL PAN FROM LEAKING.
HOLLEY OIL PAN CAME WITH A BUMP ON THE OIL PAN. COMPARING IT TO A STOCK OIL PAN FOR HALF THE PRICE I WOULD HAVE EXPECTED HOLLEY PERFECTION.
FACTORY OIL PAN PROVIDES structural rigidity FOR THE BLOCK.

 

You can teter toter a straight edge on this bump.
No big deal, I expected perfection when I bought it for $400!

 

Run a flat file along it to remove the step the high spot and then use a medium honing stone and WD40 to make sure its flat. The stones are made by Norton and measure 2x6" and 2x8". They are used to insure a flat surface. I use them on every machined surface on the engine. It does look like poor milling on the pan but nothing you couldn't take care of quickly.

 

Looks like the milling fixture wasn't tight enough allowing the pan to move around. Easy fix as stated, but for that $$$, I'd expect perfection too.

 

Same here. I got it the next day. I think they have warehouses around the country that they ship out of.

 

too bad the price is now $389...

 

Call Holley they would like to know about that. They will prob swap it out for a good one.

Tim