Ok so i need some advise guys! I have 5.3 right now with bolt ons, built tranny, build rear end with 410 gears. I plan on ordering the radix in like a week and throwing it on the 5.3. I found a 6.0 at the wrecking yard and im going to buy it & build it to suite the radix. I want to stoke it out to the 408, but not sure what is best for the radix? Need some input!!

 

Well, you would need a tvs2300 for the 408, but a 1900 would do you just fine on the 5.3 and 6.0. It's all about how much money you've got and what your end goal is.

Personally, i''d go for the 1900. Build the 6.0 to a forged 370, blow it, and juice it. But that's just me.

ETA: If you are going for the older Radix systems (112, 122), you will need the 122 for anything larger than the 325. The 112 get's maxed out rather quickly on a 6.0 setup.

 

Ok well im deff going with the 1900 because of the deal im getting on it. So no stroker. What head and cam should i go with if im going to boost it? I just want to get somewhere in the 12's or 11's and ill be happy.

 

talk with Thunder550, he had a 408 both blown and turbo'd. Hes the man to go to.

 

heads and cam vary depending on your goals, how often driven, and how built ur tranny is lol..

I think you'd be very happy with a low compression 370 and 1900.