does oil capacity matter for anything besides cost of an oil change?

[Montehall]

My L83 had a larger oil capacity then the new engine I have now by a quart, would there be any logical reason to put the larger pan on?

[NeedSpeed]

Displacement?

[Montehall]

Both are 350

[1911fool]

It can leak longer before you have to add oil. I would think the only advantage of a larger sump is that it will help oil starvation if you have a high volume oil pump. I know a few racers who run their cars a quart low. They say more oil in the pan costs horsepower from the crank swimming in it.
Myself I want all the oil I can get.

[RED-85-Z51]

takes longer for more oil to breakdown....the oil stays in the pan longer..and gives off more heat to the pan, keeping it cooler. At higher rpms, the oil pump pickup is less likely to stay covered as oil is forced up in higher volumes into the top end.

L83 was the typical 4qt pan, 5qt with filter and figuring pump and lube system capacity...which is, the typical 350 capacity.

what 350 do you have that only holds 3qts + 1 in the filter and pump?

[RED-85-Z51]

Unless I misunderstand..and your L83 had a 5qt aftermarket pan? If so...i wouldnt bother because you have to mess with the pickup depth and screen to pan clearance...

[Montehall]

The lower section of the pan on the new engine is about 2 inches shorter than the pan on the l83. Depth and width are the same.

[Montehall]

takes longer for more oil to breakdown....the oil stays in the pan longer..and gives off more heat to the pan, keeping it cooler. At higher rpms, the oil pump pickup is less likely to stay covered as oil is forced up in higher volumes into the top end.

L83 was the typical 4qt pan, 5qt with filter and figuring pump and lube system capacity...which is, the typical 350 capacity.

what 350 do you have that only holds 3qts + 1 in the filter and pump?

Goodwrench 350 Engine 1971-1985 Car and light Truck Replacement Engine.

Engine consists of the following parts:

Block -part # 10066034, casting # 10066036
2 piece rear main seal 4 bolt main

Crankshaft- # 3932444
Nodular Iron 1985 and older flywheel bolt pattern.

Powdered Metal Connecting rods- # 10108688

Cast Aluminum Pistons-#12514101

G.M. High Volume Pump Oil Pump- part # 12555284

Hydralic Flat tappet Camshaft- #14088839
Intake Lift-.383" Exhaust Lift-.401"
Intake Duration @ .050"- 194 Exhaust Duration @.050"- 202
Lobe Seperation-112
This cam Has a mechanical Fuel Pump Lobe.
This is a low end Torque oriented camshaft.

Cylinder Heads- part # 14034808, casting #33417369, 1.94" Intake valve, 1.50" Exhaust Valve, 76cc Combustion Chamber, 7 Bolt style Exhaust Flange Standard, 85' and prior intake manifold bolt pattern. Perimeter bolt style Valve Covers. This head is very similar to the old #882 castings from the 1970's



This is a great entry level replacement engine for older cars and trucks, and a great basic street rod engine. All of the parts in this engine are Brand New.
350 Cubic inches 4.00" Bore, 3.47" stroke
8.5:1 compression ratio.
250 HP @4300 rpm
350 ft. lbs of torque @ 3600 rpm
( These Numbers obtained with a Quadrajet Carb,1 5/8" headers , and an Edelbrock Performer intake part # 2101)

Engine Name: 350 LM1
Horsepower: 249 HP @ 5,000 RPM
Torque: 304 Ft/Lbs @ 3,500 RPM
Compression Ratio: 8.50 to 1
Block: 4 – Bolt, 2 Piece Rear Seal, 4.000” Bore
Crankshaft: Cast Nodular 3.480” Stroke
Heads: Cast Iron, 76cc
Valves: 1.940” / 1.500”
Camshaft lift: 0.390” / 0.410” Hydraulic
Duration @ 0.050”: 195° / 202°
Intake: Not Included

This engine can also be used in 1986 model pick-ups. The flexplate (flywheel) must also be changed. Use flexplate #471598.

SDPC Part Number: 10067353 Manufacturer: GM Goodwrench Replacement Engines New/Reman. : New Core Value : 100.00 Transmission : A/S Cubic inches : 350 Liters : 5.7L

This engine includes Painted Valve Covers, oil pan and Timing Cover. This engine is drilled for both L.H. and R.H. dipsticks. Plugs Are included to plug the side not used.Two timing pointers are also included, a pointer for a 6" balancer and a pointer for an 8' balancer.Balancer with 2:00 timing mark must be used with this engine in order for mark to line up with the pointer.
For most stock applications with HEI ignition, Base ignition timing should be set to 10 before top dead center (with vacuum advance disconected) Total ignition timing should be around 36 @ 3000 rpm.

Spark plugs that should be used are AC Delco R45TS gapped at .045"

Oil filters used with this engine include PF25 , PF35 , PF1218 , or PF35L. The first oil filter is a 1/2 Quart type, the last three are the 1 quart type.
Generally 10W30 or 10W40 oil is used in this engine

[RED-85-Z51]

thats basically the same engine i have in my 94 Z71, except center bolt heads and covers...mine holds 5 quarts total with filter, it works fine for me..

[C5Nate]

Last longer? Not really.


The deeper the pickup is in oil, the less likely hood of it becoming uncovered in a hard corner or hard acceleration/braking.

[Montehall]

Last longer? Not really.


The deeper the pickup is in oil, the less likely hood of it becoming uncovered in a hard corner or hard acceleration/braking.
Yeah. Its an 84 vette

[RED-85-Z51]

Yeah. Its an 84 vette

Could probably get by with a 2qt pan..

[mike100]

Run the pan that came with the car is my gut instinct.

[VatorMan]

Think that's bad ? Try 10.5 quarts in my Grand Sport. When I run 20W-50, oil change is around $120.

[Montehall]

Think that's bad ? Try 10.5 quarts in my Grand Sport. When I run 20W-50, oil change is around $120.
15q in my 7.3 Ford