I may be going with a stroked 408 soon and wondering what kind of hp numbers to expect. Curious what the NA numbers would be for say, 10.5:1 CR. Will have:

218/224 565/588 114 +4 cam
TEA stg II heads 2.02/1.55 (flow 295cfm @.5500)
ASM headers
3" Random Tech cats - 3" exhaust

My Radix may go back on. Anyone done the stroker 408/Radix combo yet and got any numbers?

Radix 9lbs boost
Cam may be changed if I don't go with the Radix.

Still very undecided which way to go. NA or blown.

 

I don't know if the Radix could flow enough air to be worth it on a 408.

 

Blacksheep has completed his 408 and it sounds pretty mean. No dyno numbers yet. I will have my done by late May, if all goes well.
The camshaft you have chosen would be small for a 408. I am also curious if the Radix might have a problem with suppling a big motor. I might be capable but, it will cost you in heat soak. Although I have never messed with a Radix.

 

I'll let you know how a Radix does with a 408 pretty soon,I should be putting heads on the 408 next week and hopefully have everything togather in the next 2 to 3 weeks.I should be able to find out exactly how much power a Radix can support on the dyno.

 

sweet

 

I'll look for your numbers, whitt. I hope to be back up by then also - about 3 weeks. I'm sending my heads in for hand finishing and that will be the hold up - probably. We'll see.

 

Mine goes on the dyno tomorrow. I'll let ya'll know how it does.

 

Blacksheep are you doing both NA and sprayed dynos?How big a shot are you planning with that direct port system?

 

Mostly n/a but a couple on a 150 shot, but who knows I may try 300 once.

 

Can you get away with 9psi and a 10.5 CR? Seems kind of high for pump gas. Radix should be able to tell you how much their product should support. Ask for some flow numbers. Either way that's gonna be one nasty engine. Just out of curiosity what stroker kit/crank are you using?