B18CYA

iTrader: (17)

well I started thinking about putting a stroker crank into my 6.0 iron build the only concern I have is the flowing capability of the 2.5" crossover and the manifolds. I have already decided against large tubular headers for a couple of reasons and was wondering if any of you have done such a big motor with the truck manifolds.

fyi on setup 370" S80 t6 flanged 4"dp and exhaust, ported heads, ls6 intake

SELLSZ06

iTrader: (12)

check out one of the stickys thread.

frcefed98

iTrader: (16)

They'll flow enough, if you are worried about the crossover, make it 3.0 instead of 2.5.

02SSLE

iTrader: (26)

I ran 3 inch crossover on my new setup

black98ws6ta

iTrader: (77)

The biggest restriction is at the turbine housing, running 3'' wont change anything but maybe make it spool slower. The 6.0's have worked great on larger motors then you are considering running.

B18CYA

iTrader: (17)

did you notice any difference with spool?

this is a tang t6 flange should flow nicely

B18CYA

iTrader: (17)

what size crossover did you run?

black98ws6ta

iTrader: (77)

2.5 is the most common. The exit at the 6.0l manifolds are around that size, and when you neck it down at the compressor housing. Even a t6 flange/exhaust housing doesnt outflow (2) 2.5 pipes.

TwnTrboCE

iTrader: (43)

We have ran 2.5" on our 408 to 1500+ hp. We'll be running 2.5" on our 427 also.

B18CYA

iTrader: (17)

oh goody!

408 here we come!!!!!!!!!!