Here is the blueprint for the 455 I picked up to drop in my 75 Cutlass Supreme

Intake: Edelbrock Performer Intake Manifolds

Carb: SMI - STAGE TWO - 3310 (750 CFM) 4160 HOLLEY FOUR BARREL

Radiator: Griffin Thermal Products 8-00008 Aluminum
Fan: Flex-a-lite 1309 - Flex-a-lite Wide Blade Flex Fans
Transmission Coolers: Flex-a-lite 4116 - Flex-a-lite TransLife

Headers: Hedman Hedders 58158 - Hedman Elite

Rocker Arms: COMP Cams 17044-16 - COMP Cams High Energy Die Cast Aluminum

Oil Pump: Melling M-22FHV High Volume
Oil Pan: Moroso 20484 8 quart
Oil Pickup: Moroso 244161

Pistons: Keith Black KB132-060 Hypereutectic Bore 4.186

Heads: Edelbrock Proformer RPM Heads (unless I can get my hands on a good set of

Distributor: MSD Ignition 8501 - MSD Ultimate HEI Kits


What do you guys think? I am running this on my TH350 with Shift Kit and HD Torque Converter

 

What is your hp/tq goal?

 

I dont think you need an 8 qt pan.

 

Would love 1 hp per cubic ft

As it's being an olds and all, I want some big torque numbers

 

I think we need to know a few more details about your whole combination, like- weight, trans, rear end gear ratio, and primary use of your car. To give you a better evaluation on the list of parts you've given us. What you have there is a parts list or recipe. If you really want to talk about blueprint data have your machinist or engine assembler fill in the blanks on this list-

Engine Blueprint Data


Displacement
Bore x Stroke
Main bearing clearance
Crankshaft Journal run-out
Crankshaft endplay
Rod bearing clearance
Connecting rod side clearance
Connecting rod center to center length
Cylinder wall finish
Piston pin dimensions
Piston to wall clearance
Ring type
Ring gap
Piston compression distance
Dome height
Dish depth/ cc
Weight
Deck clearance
Head gasket clearance – compressed thickness
Advertised compression ratio
True compression ratio
CC combustion chamber
Valve size
Intake
Exhaust
Piston to valve clearance
Camshaft specs
Lift
Duration
Lobe separation
End play
Rocker ratio
Valve springs
Outside diameter
Pressure @ check height
Pressure @ open height
Coil bind height
Rod bolt torque or stretch
Main bolt/ stud torque or stretch
Head bolt/ stud torque or stretch
Max ignition timing
Header type

 

Ok, I will talk to my consultant about this list (my dear ole' dad)

The weight of my car is 3111 (with the 350)

My tans is a TH350 with a shift kit, and a HD Torque Converter

Rear End Gear Ratio will probably be around 355 with a Posi

Primary Use of the car is a Daily Driver / Strip Car (want to be able to tear my ricer friends up at the red light and on the track)

Thanks, and good list, thanks for your time

Jim

 

Don't necessarily need the Edelbrock heads to achieve that but you can if you want. 475hp/540tq is doable with good compression and the right cam. You can get those numbers with the stock heads, if done right. Going roller would help.

 

Go with a thermo fan clutch and 6 blade fan to match. I have a similar flexalite fan sitting under my workbench. I couldn't stand the constant ROAR of the thing. Also, I have heard some not so good stories about them when a blade comes loose!

 

or the HV pump, IMO.

 

Ahh lovely, will swap it out in my summit cart now

 

You sure? I was watching power block (tv show on spike) where they rebuilt an olds 455 with Joe Mondello and they were talking about some "infamous olds oiling problem" and installed one of these

 

Ok, I am going to be picking up a set of Ga heads here in a bit from a user here so I am putting off the edelbrock heads 4 now

 

Look the G heads over closely before spending any money on machine work. If the heads need valves, guides, and all the other stuff to properly rebuild 40 year old cast iron heads the the Edelbrocks start to make better sense.

 

Not sure if he's talking about mine but I have a set of Ga's for sale, $650.00, new valves, guides and seats along with new springs, but those would probably have to be changed depending on the cam.

 

3111 sounds awful light for a 75 Supreme unless it's completely gutted. 4111 sounds more like it. My 74 Hurst (S car) weighs in at 3988.

You do not need the HV oil pump. At high RPM it will suck the pan dry and all the oil will end up at the rockers unless you also install restrictors, which I don't think are needed for any street Oldsmobile engine. Neither do I think you need an 8 quart oil pan. A 6 quart Toronado pan is adequate esp with the Toronado windage tray.

I'd also be leery of a TH350 behind a stout 455 unless it's had the 2nd gear sprags upgraded.

Talk to Brian Trick or others here who have built super high-performance Olds engines. They know what works and what is money well spent.

 

Bill Trovato in the how to build max performance olds book, that he lost 15 hp going to the toro oil pan gained it back the second he swapped it back to a stock pan?

 

That's because he didn't take the hump and out of it and oil sits in that small front part creating windage/drag.

You don't pump all the oil to the top because of a high volume pump and you don't need restrictors. For the millionth time it's an oil drainback problem, not that something gets "too much" oil. Open up the drainbacks and you'll be fine.

 

Shouldn't be too hard to achieve. If you were more ambitious you might want to shoot for 1 HP per cubic inch.