LQ4-E39

iTrader: (7)

Aiming to have my swap wrapped up late spring, wondering what kind of power to expect.

Setup:

Engine:
2003 LQ4 Iron 6.0 pulled from van with 134K
Stock bottom end, rods, pistons, etc
Stock rod bearings, cam bearings, main bearings, etc
GTO oil pan, pickup tube, windage tray
Stock LS2 cam from a 2005ish Corvette
AC Delete (not running an AC compressor at this time)

Top end:
317 heads milled .026” for 66cc chambers (verified by the machine shop that did the work). By the way, how can I calculate new CR from this?
new GM MLS headgaskets
ARP headbolts
Stock pushrods, rockers, lifters, etc
LS6 “yellow” valve springs and retainers

Intake:
Stock LS6 intake manifold
LS6 throttle body, stock
Some sort of cold air intake, cone filter
Stock LS6 fuel rail, with 42# Ford Greentop injectors

Exhaust:
1998 Camaro tubular stamped steel manifolds, slightly modified to fit my swap, with 2.25” mandrel bent pipe feeding the OEM BMW system. Only have secondary cats well downstream of the headers, precats are all gone.
QTP Cutout/exhaust dump

2002 F-Body T56
New stage 2 Diamond clutch
Most likely a ~18lb Diamond flywheel
3.15 M5 LSD

Tune will be for 93 pump gas.

Let me know if I’m missing anything.

What kind of numbers can I expect?

C4 LS1

Sounds mostly stock other than the vette cam and heads. So I would say probably around 370-390 HP.

C4 LS1

You can also compute your C/R with a calculator on google. Just type in compression ratio calculator.

LQ4-E39

iTrader: (7)

I’m assuming the LS6 intake and higher flowing injectors probably won’t make too much of a difference over the truck intake, which already flows pretty well?

I was hoping the tune would also help seeing as I want to run 91/93 on the higher compression ratio.

5w20

iTrader: (21)

https://ls1tech.com/forums/dyno-gues...ing-forum-150/

Blackpanther99

iTrader: (8)

360-390IMO... You will see a big number on Torque though.

LQ4-E39

iTrader: (7)

thanks, i posted a thread over there.

sounds like good numbers!