I am putting ported and polished 862 5.3 heads on my ls1 with a ls6 cam and valve springs. What pushrods should i use stock or do i need a different size?

 

Were the heads milled at all? Have you changed lifters? If this stuff is still stock more then likely you can stick with the stock push rod length. If the heads were milled or your lifters were changed its probably best to just measure the length to make sure you get the right ones. You can get push rod length checkers for about $20.

 

bump...

 

You need to measure otherwise every response you get here is a guess.

 

you need to measure with a pushrod length tool.

 

Definitely somewhere between 7.225" and 7.450".

 

thanks for all youre help guys!