LS Rails vs Injectors and Intakes

Fore LS Fuel Rail and Injector Fitment with Hardware Packs
Master compatibility chart for selection of LS rails with different intake types. Use this chart to find the hardware
kit for installing respective rails and injectors on the specific intake manifold.

STEP 1
Intake Configuration
STEP 2
Use Rail Type
STEP 3
Injector Type
STEP 4
Injector Length
(mm)
STEP 5
Select Hardware Kit*
Stock
LS1 / LS6
Intake
56-100 (LS1) ID725, 1000 48 A
60 (OE length) B
ID850, 1050X, 1350X, 1700(X),
2000, 2600
48 A
60 (OE length) B
Siemens Deka 60 lb/hr 60 (OE length) B
Siemens Deka 80 lb/hr
Stock
LS2
Intake
45-100 (LS3) ID725, 1000 48 (OE length) F
ID850, 1050X, 1300(X), 1700(X)
ID2000, 2600
Siemens Deka 60 lb/hr 60 I
Siemens Deka 80 lb/hr
Stock
LS3 / L99 / L76
Intake
45-100 (LS3) ID725,1000 48 I
ID850, 1050X, 1300(X), 1700(X)
ID2000, 2600
34 (OE length) C
48 I
Siemens Deka 60 lb/hr no fitment
Siemens Deka 80 lb/hr
Stock
LS7
Intake
77-100 (LS7) ID725, 1000 48 E
ID850, 1050X, 1300(X), 1700(X)
ID2000, 2600
34 (OE length) D
48 E
Siemens Deka 60 lb/hr no fitment
Siemens Deka 80 lb/hr
Stock LSA / LS9
Magnuson Heartbeat LSA / LS9
41-100 (LS9) ID725, 1000 no fitment
ID850, 1050X, 1300(X), 1700(X)
ID2000, 2600
34 (OE length) H
Siemens Deka 60 lb/hr no fitment
Siemens Deka 80 lb/hr
Fast LSXr 102 LS1 / LS2 / LS6
Fast LSXr 102 LS3 / L99 / L67
Fast LSXr 102 LS7

45-100 (LS3) ID725, 1000 48 (OE LS2) F
ID850, 1050X, 1350X, 1700(X),
2000, 2600
48 (OE LS2) F
34 (OE LS3, LS7) K
Siemens Deka 60 lb/hr 60 (OE LS1, LS6) G
Siemens Deka 80 lb/hr
MSD
Atomic Airforce LS7
#2701
77-100 (LS7) ID725, 1000 no fitment
ID850, 1050X, 1300(X), 1700(X)
ID2000, 2600
34 (OE length) J
Siemens Deka 60 lb/hr no fitment
Siemens Deka 80 lb/hr
Fast 92mm
Fast LSX 92mm LS1 / LS2 / LS6
56-100 (LS1, LS6) ID725, 1000 48 (OE LS2) A
ID 1050X, 1350X, 1700(X),
2000, 2600
34 (OE) L
48 A
Siemens Deka 60 lb/hr 60 (OE LS1, LS6) B
Siemens Deka 80 lb/hr


* Hardware Pack Inventories:

A:
Qty 4: M6x20 Stainless SHCS

B:
Qty 4: M6x35 Stainless SHCS
Qty 4: 14mm Fuel Rail Mount Spacers

C:
Qty 4: M6x22 Stainless SHCS

D:
Qty 4: M6x30 Stainless SHCS

E:
Qty 4: M6x40 Stainless SHCS
Qty 4: 14mm Fuel Rail Mount Spacers

F:
Qty 4: M6x22 Stainless SHCS
Qty 8: 3mm Lower Injector Rings

G:
Qty 4: M6x30 Stainless SHCS
Qty 4: 7mm Fuel Rail Mount Spacers

H:
Qty 4: M6x12 Stainless SHCS

I:
Qty 4: M6x35 Stainless SHCS
Qty 4: 12mm Fuel Rail Mount Spacers

J:
Qty 4: M6x40 Stainless SHCS
Qty 4: 12mm Fuel Rail Mount Spacers
Qty 8: 10mm Fuel Injector Spacers

K:
Qty 4: M6x22 Stainless SHCS
Qty 8: 14mm Fuel Injector Spacers
Qty 8: 3mm Lower Injector Rings

L:
Qty 4: M6x20 Stainless SHCS
Qty 8: 14mm Fuel Injector Spacers