Why is the LS Engine so good..
- Thread starter bytor
- Start date
TheNovaMan;65715634 said:I'm rebuilding a junkyard Vortec 350. I threw away the crank position sensor reluctor wheel because it's going to be carbureted, but I didn't realize the damper seats against the reluctor, so now I need to buy or make a spacer. Does anyone know what thickness I need?
Here's what the reluctor looks like:
https://www.summitracing.com/parts/ati-916320
ATI Crank Hub Spacers 916320
Image is a representation of this item.
Actual item may vary.
the reluctors .093" or about 2.38mm
Reluctor thickness is 2.38mm, if you have a non vortec balancer, you can just use it. They cut the balancer snout down to fit the reluctor.
Loves302Chevy
"One test is worth a thousand expert opinions."
OK, so the LS engine is 20 years old, and now retired. But I have to ask, does anyone know if
anyone has tried the FITech self-learning fuel injection system on top of the Edelbrock or Holley
carbureted LS intake manifold? That's right - NO fuel rails or injectors!
I'm still a carb guy, but if I ever decided to go fuel injected, this would be the way I would do it.
Like this:
Or with the dual plane intake.
https://www.hotrod.com/articles/20-ls1-intake-manifolds-tested/
https://racemagazine.com.au/cars/ls1-manifold-comparison-data-analysis
just so others can look over the test results, on those ls intakes
both cross sectional area, and length effect flow but remember, displacement compression and cam timing also are major factors.
what most people fail to take into account is that the cam timing and exhaust scavenging being properly matched is critical.
changing the cam timing or header configuration would change some of the resulting intake flow rankings
big improvement in totally different ,but bolt on, ls heads
that require a non-stock intake manifold and headers
yes you'll need non-stock valve train components
( and not direct replacement for stock heads) LS heads
anyone has tried the FITech self-learning fuel injection system on top of the Edelbrock or Holley
carbureted LS intake manifold? That's right - NO fuel rails or injectors!
I'm still a carb guy, but if I ever decided to go fuel injected, this would be the way I would do it.
Like this:
Or with the dual plane intake.
https://www.hotrod.com/articles/20-ls1-intake-manifolds-tested/
https://racemagazine.com.au/cars/ls1-manifold-comparison-data-analysis
both cross sectional area, and length effect flow but remember, displacement compression and cam timing also are major factors.
what most people fail to take into account is that the cam timing and exhaust scavenging being properly matched is critical.
changing the cam timing or header configuration would change some of the resulting intake flow rankings
big improvement in totally different ,but bolt on, ls heads
that require a non-stock intake manifold and headers
yes you'll need non-stock valve train components
( and not direct replacement for stock heads) LS heads
Last edited by a moderator:
the LS series engines were designed to be individual direct port injection, so a single plane intake with a common plenum makes sense as its more consistent and effective, at mid and upper rpms,
EXAMPLE
similar to this design
yes you can revert to either a common single plenum, or split dual plenum wet centralized EFI fogger EFI type system, and it has some minor advantages over a carburetor, but, part of the advantage of the dual plane intake design, commonly used with carburetors, is that at lower engine rpms it keeps the air speeds in the runners high enough,
to keep the fuel droplets from a carburetor in suspension from the plenum to the back of the intake valve, if you select an intake with individual injectors that are located in the lower intake manifold runners pointed to flow a fog at the back of the intake valve most of the intake plenum and runner system is flowing basically dry air and sensors maintain the correct fuel/air ratio based on what each cylinder shows.
if you revert to a single central wet fogger system, even with several individual fuel injectors supplying fuel into a common plenum you've effectively lost at least some control over the fuel distribution.
youll find that a efi throttle body controlling air flow and individual injectors with matched sensors provide the best power and lower emissions
http://www.hotrod.com/articles/giant-ls3-intake-manifold-dyno-shootout/
Dura-Bond LS Cam Bearing Sets
1999-2006 first design
position 1&5 bore 2.326 / 2.328
CH-10, CHP-10, CHP-10T
2003-2009 sec design
position 1&5 bore 2.346 / 2.348
CH-23, CHP-23, CHP-23T
2007-2013
position 1&5 bore 2.346-2.348
CH-25, CHP-25, CHP-25T
** All CH-25 sets will work in place of the CH-23 sets
EXAMPLE
similar to this design
yes you can revert to either a common single plenum, or split dual plenum wet centralized EFI fogger EFI type system, and it has some minor advantages over a carburetor, but, part of the advantage of the dual plane intake design, commonly used with carburetors, is that at lower engine rpms it keeps the air speeds in the runners high enough,
to keep the fuel droplets from a carburetor in suspension from the plenum to the back of the intake valve, if you select an intake with individual injectors that are located in the lower intake manifold runners pointed to flow a fog at the back of the intake valve most of the intake plenum and runner system is flowing basically dry air and sensors maintain the correct fuel/air ratio based on what each cylinder shows.
if you revert to a single central wet fogger system, even with several individual fuel injectors supplying fuel into a common plenum you've effectively lost at least some control over the fuel distribution.
youll find that a efi throttle body controlling air flow and individual injectors with matched sensors provide the best power and lower emissions
http://www.hotrod.com/articles/giant-ls3-intake-manifold-dyno-shootout/
Dura-Bond LS Cam Bearing Sets
1999-2006 first design
position 1&5 bore 2.326 / 2.328
CH-10, CHP-10, CHP-10T
2003-2009 sec design
position 1&5 bore 2.346 / 2.348
CH-23, CHP-23, CHP-23T
2007-2013
position 1&5 bore 2.346-2.348
CH-25, CHP-25, CHP-25T
** All CH-25 sets will work in place of the CH-23 sets
Last edited:
Loves302Chevy
"One test is worth a thousand expert opinions."
OK, so no dual plane. But I did find this on the FITech site: http://fitechefi.com/products/30002/
This method might (probably) not be as precise as separate fuel injectors in each port, but
it has to be better than a carburetor. I like K.I.S.S. and I'm just not a fan of all that plumbing and
sensors and wiring running all over the place. When I pop a hood, I like to see an air cleaner.
This method might (probably) not be as precise as separate fuel injectors in each port, but
it has to be better than a carburetor. I like K.I.S.S. and I'm just not a fan of all that plumbing and
sensors and wiring running all over the place. When I pop a hood, I like to see an air cleaner.
yes it has several advantages over a carburetor,in that its rather easily installed,
and theres only a few additional supporting mandatory accessories required,
too function,and in some configs a self learning self tuning mode is the major one.
and theres only a few additional supporting mandatory accessories required,
too function,and in some configs a self learning self tuning mode is the major one.
Last edited:
http://dirtydingo.com/shop/pages.php?pID=8&CDpath=4
www.summitracing.com
LS Oil Pan Information
GM LS-Series Engine Oil Pan Dimensions
F-Body Camaro/Firebird LS1 Oil Pan
Vehicles:
1998-2002 Chevrolet Camaro (5.7L V8)
2002 Pontiac Firebird (5.7L V8)
Capacity:
5.5 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12628771
Pickup tube:
12558251
Windage tray:
12558253
Dip stick:
12551581
Dip stick tube:
12551577
Pickup tube o-ring:
12557752
Gasket:
12612350
2010-2015 LS3 Camaro / G8 Oil Pan
Vehicles:
2010-Present Chevrolet Camaro SS
2008-2009 Pontiac G8
2006-Present Holden VE Commodore
Capacity:
8 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
- Part Numbers -
Oil pan:
12640748
Pickup tube:
12611904
Windage tray:
12611129
Dip stick:
12634547
Dip stick tube:
12625031
Pickup tube o-ring:
12557752
Gasket:
12612350
GTO / VZ Commodore Oil Pan (Front Sump)
Vehicles:
2004-2006 Pontiac GTO
2001-2005 Holden Monaro (VZ)
2004-2006 Holden Commodore (VZ)
2001-2005 Vauxhall Monaro
Capacity:
6 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12581209 up to 2004; 12599397 2005 and later. Only difference between part numbers is the newer model has a built-in pressure relief valve.
Pickup tube:
12572654
Windage tray:
12558189
Dip stick:
92067147
Dip stick tube:
92066941
Pickup tube o-ring:
12557752
Gasket:
12612350
C6 Corvette LS2/LS3 Oil Pan (Wet Sump)
Vehicles:
2005-Present Chevrolet Corvette (non-dry sump)
Capacity:
5.5 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12624617
Pickup tube:
12624497
Windage tray:
12558189
Dip stick:
12570788
Dip stick tube:
12570787
Pickup tube o-ring:
12557752
Gasket:
12612350
2009-Present Cadillac CTS-V Oil Pan LS2/ LS6 / LSA
Vehicles:
2009 Cadillac CTS-V
Capacity:
6 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
Factory only
- Part Numbers -
Oil pan:
12631828 (current), 12605814 (previous), 12628451 (previous)
Pickup tube:
12621299
Windage tray:
12611129
Dip stick:
12584737
Dip stick tube:
12584738
Pickup tube o-ring:
12557752
Gasket:
12612350
GM Truck / SUV Oil Pan
Vehicles:
2007-Present Cadillac Escalade
2007-Present Chevrolet Avalanche
2008-Present Chevrolet Express
2007-Present Chevrolet Silverado
2007-Present Chevrolet Suburban
2007-Present Chevrolet Tahoe
Capacity:
6 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
Factory only
- Part Numbers -
Oil pan:
12640746
Pickup tube:
12608579
Windage tray:
12611129
Dip stick:
12622055
Dip stick tube:
12609269
Pickup tube o-ring:
12557752
Gasket:
12612350
Hummer (GM Muscle Hot Rod Pan) Oil Pan (Wet Sump)
Vehicles-
H3 Hummer
Capacity:
5.5 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12614821
Pickup tube:
12608593
Windage tray:
12612728
Dip stick:
12603506
Dip stick tube:
12612015
Pickup tube o-ring:
12557752
Gasket:
12612350
Holley 302-1 LS Retro-Fit Oil Pan
Vehicles: Various GM muscle/classic car and truck chassis
Capacity: 6 quarts
Oil Filter Thread: M22 x 1.5mm
Baffles: Holley, Part No. 302-10
- Part Numbers -
Oil pan:
Holley Part No. 302-1
Pickup tube: Supplied with pan
Windage tray: 12611129
Dip stick: 12634547
Dip stick tube: 12625031
Pickup tube o-ring: 12557752
Gasket: 12612350
Holley 302-2 Front Clearance LS Retro Fit Oil Pan
Vehicles:
Various GM muscle/classic car and truck chassis
Capacity:
6.2 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
.
- Part Numbers -
Oil pan:
Holley Part No. 302-2
Pickup tube:
Supplied with pan
Windage tray:
12558253
Dip stick:
12634547
Dip stick tube:
12625031
Pickup tube o-ring:
12557752
Gasket:
12612350
Holley 302-3 Front Clearance LS Retro Fit Oil Pan with Turbo Drains
Vehicles:
Various GM muscle/classic car and truck chassis
Capacity:
5.9 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
.
- Part Numbers -
Oil pan:
Holley Part No. 302-3
Pickup tube:
Supplied with pan
Windage tray:
12558253
Dip stick:
12634547
Dip stick tube:
12625031
Pickup tube o-ring:
12557752
Gasket:
12612350
SSR & Trailblazer SS Oil Pan
Vehicles-
H3 Hummer
Capacity:
6 quarts
- Part Numbers -
Oil pan:
12579203
OTHER-
Long oil filter: ACDelco PN PF59
Short oil filter: ACDelco PN PF44
Oil Drain Plug (magnetic) 23011420
<< LS Swap Info < Back to List > LS Swap Info >>
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LS Oil Pan Information
GM LS-Series Engine Oil Pan Dimensions
F-Body Camaro/Firebird LS1 Oil Pan
Vehicles:
1998-2002 Chevrolet Camaro (5.7L V8)
2002 Pontiac Firebird (5.7L V8)
Capacity:
5.5 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12628771
Pickup tube:
12558251
Windage tray:
12558253
Dip stick:
12551581
Dip stick tube:
12551577
Pickup tube o-ring:
12557752
Gasket:
12612350
2010-2015 LS3 Camaro / G8 Oil Pan
Vehicles:
2010-Present Chevrolet Camaro SS
2008-2009 Pontiac G8
2006-Present Holden VE Commodore
Capacity:
8 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
- Part Numbers -
Oil pan:
12640748
Pickup tube:
12611904
Windage tray:
12611129
Dip stick:
12634547
Dip stick tube:
12625031
Pickup tube o-ring:
12557752
Gasket:
12612350
GTO / VZ Commodore Oil Pan (Front Sump)
Vehicles:
2004-2006 Pontiac GTO
2001-2005 Holden Monaro (VZ)
2004-2006 Holden Commodore (VZ)
2001-2005 Vauxhall Monaro
Capacity:
6 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12581209 up to 2004; 12599397 2005 and later. Only difference between part numbers is the newer model has a built-in pressure relief valve.
Pickup tube:
12572654
Windage tray:
12558189
Dip stick:
92067147
Dip stick tube:
92066941
Pickup tube o-ring:
12557752
Gasket:
12612350
C6 Corvette LS2/LS3 Oil Pan (Wet Sump)
Vehicles:
2005-Present Chevrolet Corvette (non-dry sump)
Capacity:
5.5 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12624617
Pickup tube:
12624497
Windage tray:
12558189
Dip stick:
12570788
Dip stick tube:
12570787
Pickup tube o-ring:
12557752
Gasket:
12612350
2009-Present Cadillac CTS-V Oil Pan LS2/ LS6 / LSA
Vehicles:
2009 Cadillac CTS-V
Capacity:
6 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
Factory only
- Part Numbers -
Oil pan:
12631828 (current), 12605814 (previous), 12628451 (previous)
Pickup tube:
12621299
Windage tray:
12611129
Dip stick:
12584737
Dip stick tube:
12584738
Pickup tube o-ring:
12557752
Gasket:
12612350
GM Truck / SUV Oil Pan
Vehicles:
2007-Present Cadillac Escalade
2007-Present Chevrolet Avalanche
2008-Present Chevrolet Express
2007-Present Chevrolet Silverado
2007-Present Chevrolet Suburban
2007-Present Chevrolet Tahoe
Capacity:
6 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
Factory only
- Part Numbers -
Oil pan:
12640746
Pickup tube:
12608579
Windage tray:
12611129
Dip stick:
12622055
Dip stick tube:
12609269
Pickup tube o-ring:
12557752
Gasket:
12612350
Hummer (GM Muscle Hot Rod Pan) Oil Pan (Wet Sump)
Vehicles-
H3 Hummer
Capacity:
5.5 quarts
Oil Filter Thread:
Post June 2007 M22 x 1.5mm, Pre June 2007 13/16"-16
Baffles:
- Part Numbers -
Oil pan:
12614821
Pickup tube:
12608593
Windage tray:
12612728
Dip stick:
12603506
Dip stick tube:
12612015
Pickup tube o-ring:
12557752
Gasket:
12612350
Holley 302-1 LS Retro-Fit Oil Pan
Vehicles: Various GM muscle/classic car and truck chassis
Capacity: 6 quarts
Oil Filter Thread: M22 x 1.5mm
Baffles: Holley, Part No. 302-10
- Part Numbers -
Oil pan:
Holley Part No. 302-1
Pickup tube: Supplied with pan
Windage tray: 12611129
Dip stick: 12634547
Dip stick tube: 12625031
Pickup tube o-ring: 12557752
Gasket: 12612350
Holley 302-2 Front Clearance LS Retro Fit Oil Pan
Vehicles:
Various GM muscle/classic car and truck chassis
Capacity:
6.2 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
.
- Part Numbers -
Oil pan:
Holley Part No. 302-2
Pickup tube:
Supplied with pan
Windage tray:
12558253
Dip stick:
12634547
Dip stick tube:
12625031
Pickup tube o-ring:
12557752
Gasket:
12612350
Holley 302-3 Front Clearance LS Retro Fit Oil Pan with Turbo Drains
Vehicles:
Various GM muscle/classic car and truck chassis
Capacity:
5.9 quarts
Oil Filter Thread:
M22 x 1.5mm
Baffles:
.
- Part Numbers -
Oil pan:
Holley Part No. 302-3
Pickup tube:
Supplied with pan
Windage tray:
12558253
Dip stick:
12634547
Dip stick tube:
12625031
Pickup tube o-ring:
12557752
Gasket:
12612350
SSR & Trailblazer SS Oil Pan
Vehicles-
H3 Hummer
Capacity:
6 quarts
- Part Numbers -
Oil pan:
12579203
OTHER-
Long oil filter: ACDelco PN PF59
Short oil filter: ACDelco PN PF44
Oil Drain Plug (magnetic) 23011420
<< LS Swap Info < Back to List > LS Swap Info >>
Last edited:
