455 Oldsmobile Crate Engine 475 HP With Aluminum Heads

Starting at $13,500

We at Custom Crate Engines are best known for our precision custom designed turn-key engines by taking great pride and detail in all of our engine builds. Whether your vehicle is a Cutlass, 442, or other Oldsmobile, we are here to help design and build the engine combination to match you with your vehicle. From that special stroker engine to that turn-key drop-in ready crate engine, we strive to build custom engines at an affordable price.

From custom painted engine blocks to our exclusive March Performance serpentine belt system, Proformance Unlimited can supply you with the crate engine that you have dreamed of and others fear! With over 50 years of shop experience, you can rest assured that we are here to help design and build the engine combination that best suits your vehicles needs. Unlike our competition, we stand by our turn-key crate engines with a one year, unlimited mile warranty.

  • Seasoned 455 2 bolt main block
  • Bored and honed with deck plate
  • Mains have been align honed
  • Block has been decked
  • Dura Bond cam bearings installed
  • Brass freeze plug and oil galley kit installed
  • Block painted with 3 coats of high temp ceramic engine paint customer's choice of color
  • Cast steel crankshaft
  • H-Beam connecting rods with bushed pins
  • Forged pistons (Mahle, SRP, Icon)
  • Performance rod and main bearing (Clevite, King or Federal Mogul)
  • Performance rings hand filed to match application
  • Rotating assembly is balanced
  • Three piece true double roller timing set
  • Comp Cams custom ground hydraulic roller performance camshaft
  • Tie-bar roller lifters
  • Edelbrock Performer RPM Oldsmobile aluminum cylinder heads
  • 7/16 Screw in studs and guide plates
  • Manley chrome moly push rods
  • Performance roller rocker arms
  • Engine will be assembled with all new bolts
  • Melling high volume oil pump and screen
  • Chrome oil pan
  • Dip stick and tube
  • Timing cover
  • Professional Products performance balancer
  • Edelbrock performance intake manifold
  • Chrome thermostat housing
  • Holley Ultra HP carburetor w/ electric choke
  • Chrome air cleaner
  • MSD Pro-Billet distributor
  • MSD Blaster II coil and bracket
  • Spark plugs
  • Taylor 8mm ignition wires (Color of choice Black, Red, Blue, Yellow, Green, Orange no extra charge)
  • Water pump
  • Chrome valve covers
  • Chrome breather
  • Fel-Pro performance gaskets
  • Engines are photo documented during the building process so you can see the quality of parts and workmanship that goes into your engine
  • Your engine will be tested and tuned for optimum performance
  • 1 Year unlimited mileage warranty


In 1968 the legendary Oldsmobile 455 ci V-8, producing 365 horsepower came to life and is sought after today by many Oldsmobile enthusiasts. Today, with the vast array of performance parts available we can turn your Oldsmobile from a mild 300 horsepower grocery getter to a wild tire smoking 475 horsepower animal.

Our 455 ci crate motor begins with a 455 2-bolt main block and a cast iron precision ground micro polished crankshaft. With the use of a set of Edelbrock Performer RPM aluminum cylinder heads our 455 ci crate motor will pump out 475 horsepower! With that kind of horsepower your Oldmobile is certain to get the respect it deserves!

From custom painted engine blocks to our exclusive March Performance serpentine belt system, Proformance Unlimited can supply you with the crate engine that you have dreamed of and others fear! With over 50 years of shop experience, you can rest assured that we are here to help design and build the engine combination that best suits your vehicles needs. Unlike our competition, we stand by our turn-key crate engines with a one year, unlimited mile warranty.

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