Gen V and Gen VI Oil Pan

Moroso 20413 oil pan.

Fits Chevy big block Gen V and Gen VI engines.

The Moroso Gen V and Gen VI oil pan is designed with more crossmember and steering linkage clearance to fit more applications including the 1964-1972 Chevelle, Cutlass, Skylark, Tempest and GTO.

Accommodates the stock GM main cap mounted windage tray.

Clears 4.625" stroke with steel rods.

Clears 4.250 stroke with aluminum rods.

Works with most starter and flywheel combinations.

6 Quart capacity.

Measures 8" deep.

Sump measures 10 1/2" wide and 8 3/4" front to back.

Includes provisions for Moroso Dipstick kit 25970.

This oil pan is compatible with Moroso 23030 windage tray, Moroso 23010 oil pan baffle, Moroso 25830 crankshaft scraper.

Recommend Moroso 24440 oil pump pickup for most oil pumps used.

Scroll down the page for the oil pump pickup.

Moroso 20413 Chevy big block Gen V Gen VI oil pan 20413$269.97

Click to enlargeMelling M77HV High Volume Oil Pump for Moroso 20413 Oil Pan
Melling M77HV high volume oil pump for Chevy big block engines.

Works well with the Moroso 20413 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 20413 oil pan.

Click to enlargeMoroso 24440 Pickup Tube for Moroso 20413 Oil Pan
Moroso 24440 oil pump pickup for use with Moroso 20413

Chevrolet big block oil pan.

Fits Moroso 22150, 22160, 22162 oil pumps or Mellings M77 and M77HV oil pumps.

Click to enlargeMr. Gasket 6086 Oil Pan Bolts for Moroso 20413 Oil Pan
MR. Gasket 6086 oil pan bolt kit.

Fits Chevy big block engines.

Works well with the Moroso 20413 oil pan.


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.


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