Oil Pan With Windage Tray

Moroso 20403 oil pan.

Fits Mark 4 Chevrolet big block engines.

7 quart capacity.

Built in windage tray.

Built in crankshaft scraper.

Measures 8" deep.

Sump measures 10" front to back and 10 1/2" wide.

Built in crankshaft scraper, welded to the pan, strips power robbing oil from the rotating assembly.

A uni-directional windage tray screen allows oil to drain into the sump without splashing back.

Works with most starter and flywheel combinations.

Includes a provision to accept Moroso Dipstick kit 25970.

TECH NOTE: Will not fit Gen V or Gen VI engines, 1955-1957 Chevy, 1962-1967 Chevy II, V8 Vega or Monza.

This oil pan is compatible with the Moroso 23010 oil pan baffle.

Recommend Moroso 24440 oil pump pickup tube for most oil pumps used. Scroll down the page for this oil pan pickup tube.

Moroso 20403 oil pan with windage tray 20403$299.97

Click to enlargeMr. Gasket 6086 Oil Pan Bolts for Moroso 20403 Oil Pan
MR. Gasket 6086 oil pan bolt kit.

Fits Chevy big block engines.

Works well with the Moroso 20403 oil pan.

INCLUDES:

Two 1/4 Inch 20 x 3/4 Inch Bolts.

Twenty 5/16 Inch - 18 x 3/4 Inch Bolts.

These oil pan bolt kits have a special smaller-than-standard hex head that is ideal for tight spaces.

Because of the hex flange head design, it will not back into the socket wrench, allowing for easier installation.

Special underhead serrations prevent loosening, and the wide flange head distributes uniform clamping pressure for an ultra gasket seal.

The Grade 5 bolts are zinc plated.

6-Mr-GASKET-6086$19.97
Click to enlargeFelpro 1893 Oil Pan Gasket for Moroso 20403 Oil Pan
Felpro 1893 oil pan gasket for Moroso 20403 oil pan.

Constructed of rubber with a steel core.

Fits 1965-1990 Gen 4 big block stroker engine.

Trimmed for rod clearance.

3-FELPRO-1893$39.97
Click to enlargeMelling M77HV High Volume Oil Pump for Moroso 20403 Oil Pan
Melling M77HV high volume oil pump for Chevy big block engines.

Works well with the Moroso 20403 oil pan.

Approximately 25% higher oil volume than stock.

Standard oil pressure.

Uses press fit oil pump pickup tube.

TECH NOTE: Recommend Melling 24440 oil pump pickup tube for use with the Moroso 20403 oil pan.

4-MELLING-M77HV$54.97
Click to enlargeMoroso 24440 Pickup Tube for Moroso 20403 Oil Pan
Moroso 24440 oil pump pickup tube for use with Moroso 20403 Chevy big block oil pan.

Fits most popular oil pumps such as Moroso 22150, 22160, 22162 and Mellings M77 and M77HV.

1MOR-24440$55.97
Click to enlargeMoroso 23010 Oil Pan Baffle for Moroso 20403 Oil Pan
Moroso 23010 Chevy big block oil baffle for use with Moroso 20403 oil pan.

The Moroso big block oil baffle is designed to prevent sump oil from reaching the crankshaft during hard acceleration.

The Moroso oil baffle mounts between the rear main bearing cap and the oil pump.

TECH NOTE: Baffle will need to be trimmed to match the oil pan used.

2-Moroso-23010$15.97
Click to enlargeMoroso 25970 Dip Stick for Moroso 20403 Oil Pan
Moroso 25970 universal engine oil dipstick.

Designed for use with the Moroso 20403 oil pan.

Chrome plated with a built-in 1.4" NPT fitting.

A 1/4" NPT steel weld-in fitting is supplied for pans that do not already have that provision.

Existing "full" and "fill" dipstick marks can be used "as is" or new marks can be added to indicate desired oil level.

Tube and universal mounting tab can be bent or modified to accomodate engine compartment clearances and mounting locations.

A rubber capping seal keeps the dipstick secure in the tube and prevents crankcase gasses from escaping.

Overall length including exposed portion of the dipstick is 24".

Moroso-25970$29.97

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