I have lq9 block and planning to swap 243 cylinder heads on it but i will keep heads stock And also i wont to put BTR truck cam and space are 212/218 .553/.553 113+2 but for lifters and pushrods which one should i use ???
if use ls 7 lifters with pushrods lenghts 7.400 will be okay or should be different lengths ??

 

Short answer is those should work for you but the correct answer is buy the adjustable push rod checker tool and measure to be sure. At the very least call and ask Brian Tooley since it's his camshaft design

 

thx A.R. Shale Targa
I will contact Brian Tooley and also i will buy rod checker tool to check what correct length..