GIZMO

iTrader: (8)

What is the firing order for the LS1?

Thanks,

Daren

miamifan3413

iTrader: (1)

here it is:18436572

blkbird

iTrader: (28)

I thought it was on the intake.

jay_99z

iTrader: (5)

1-8-7-2-6-5-4-3.

pHEnomIC

iTrader: (14)

Dont you hate when you get two conflicting numbers?

Armageddon

iTrader: (41)

1-8-7-2-6-5-4-3

Armageddon

iTrader: (41)

That's Smallblock Chevrolet, but not LS1.

68birdls1

iTrader: (46)

i concur

GIZMO

iTrader: (8)

Thanks to all who replied.

miamifan3413

iTrader: (1)

Dude....my bad, I totally wasn't thinkin

jay_99z

iTrader: (5)

Go sit in a corner for 5 minutes and think about what you've done.

firebirdls1us

98/99-54318726
2000,01,02- 43187265

miamifan3413

iTrader: (1)

Yes, sir....I deserve a BIG

S99TA

are you drunk?

sciff5

iTrader: (1)

On a slightly different subject (slight thread hijack) does anyone know the firing order of the ford 5.0s in the fox bodies, because a lot of the LS1 rx7 guys are using ford 5.0 bbk Long tube headers with their LS1s cause they fit but I know the firing order has an impact on the shape of the collector so I am wondering if the 5.0 and the LS1 have the same firing order

Thanks

DONAIMIAN

iTrader: (18)

its printed on the side of your intake manifold, Id just get it from there since its so many conflicting numbers in this thread.

Grimes

iTrader: (3)

those are really the same firing order

jay_99z

iTrader: (5)

There aren't a bunch of conflicting numbers. The first one posted was SBC (miamifan is now sorry for that, lol!). The other numbers are all the same. It doesn't matter which number you start with.....the order is still the same.

1997bird

iTrader: (2)

The correct firing order for ALL LS1's is 1-8-7-2-6-5-4-3. This firing order originated back in 1954 by Cadillac. During the 80's Detroit desiel went to this firing order for their V8's becuase they were have harmonic problem's and breaking crankshafts. Most of your Top Fuel dragster teams and Funny Car team's have went to this firing order as well due to power robbing harmonic's at higher rpm.

MrDude_1

iTrader: (4)

1 8 4 3 6 5 7 2 is the gen I SBC.....

the LS1 has the 7-4 swap from the factory, so its order is:

1 8 7 3 6 5 4 2


the numbers are labled just like the SBC in that the front drivers side is 1. front passenger side is 2. second from front drivers side is 3.second from front passenger side is 4. ect....