I've heard that with the proper preload R lifters are quieter than the stock lifter,I thought that going with dual valvesprings would be more durable with the XE-R lobes,so TEA installed Comp 978 valvesprings at 1.800 installed height to allow .670 maximum lift.That much seat pressure will colapse the stock lifter.

 

im planning on putting a big cubic inch small block in an older car. wondering how you are getting a 408 and what bloak is that?? i know how you get a 408 out of a 400 block, but not with the new ones.
what motor would you guys suggest i run. the car is already a racecar but would like to have fuel injection. i see how much power you uys put out. so max the numbers out because this wont be driven everyday. thanks

 

The 6 liter block is a native 4" bore. With a 4" crank and .030 overbore, you'll have your 408+ cubes.