Where can I get LPP header gaskets or does anybody have some?

 

Why don't you go with Percys seal for good? 3 core, soft laminates and they will seal for good

 

I have the same problem as you but with pacesetter,fired it up for the first
time in september, and after the first test run major leak on driver side.
torqued the bolts again no difference,used gasket that came with headers,no
leaks after 300 mils, now fel-pro 1404 on the passanger side pacesetter on driver side this is no good.
Square ports in the heads and enlarge D ports in the headers realy nice lol.
I have percys too but the D ports are smaller than the header ports.
I dont know but ihope you find some gasket that fits and seals.

 

found them at Kooks. Practically the exact same gasket.

 

I once noticed that in a Kooks ad a while back.

 

I used Felpro 1406s with my LPPs and they seal just fine.