can i use ls1 stock heads for 402 cid and ls1 stock cam
and witch gaskets

 

Why do you want to do that?

 

that would really cripple an otherwise powerfull motor.

 

It has been done but with a cam change also.
Look here!https://ls1tech.com/forums/dynamometer-results-comparisons/462218-stock-headed-408-468-460-w-ls6-pacesetters.html

 

Would never do that. Why build it and then under man it?

 

+1 if you have to save for better heads.

 

Then you should continue to save your money for the right cam, heads and intake building the motor on the side. You have to also consider you need to upgrade your drivetrain and fuel system as well. Strokers aren't cheap, don't skimp and do it right the first time.

 

im waitting for afrs for 8 months

 

I would keep saving.