BluePrint Engines 50 State Legal replacement 4541970-1990 Crate Engine
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BluePrint Engines 50 State Legal replacement 4541970-1990 Crate Engine | Big Block Chevy 454 Style | Longblock | Iron Heads | Flat Tappet Cam

$8,499.00

This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!

Part Number: G4547090

Description:

This engine is designed and manufactured to factory specs for the specified vehicles below. It's manufactured using tighter machining tolerances, higher quality components, and finer balancing of the rotating assembly to make this engine better than the original while still meeting the description of a “replacement” engine.

View the Application List HERE

Dyno Tested Warranty

Block:

  • NEW BluePrint Cast Iron Block, 454 BBC
    Manufactured and Machined in the USA!
    4-Bolt Main
    4.000" Stroke,
    1-Piece Rear Main Seal
    Mech fuel pump provision: Yes
    Standard Deck

Rotating Assembly:

  • New BluePrint 1 Piece Rear Main Seal steel crankshaft
  • 4.000" Stroke  4.250" Bore
  • OEM type 6.135" connecting rods w/ 150,000 psi bolts
  • OEM spec pistons
  • External Front Internal Rear

Cylinder Heads:

  • Iron Heads 

Cam Specs:

  • Cam Type: Flat Tappet
  • OEM spec per listed vehicles

Ignition Timing:

  • OEM Specifications

Also Includes:

  • New valve covers, oil pan and timing cover
  • Dyno tested and shipped with results

Warranty:

  • 30 month / 50,000 mile

Notes:

  • Designed as factory replacement longblock for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required. 

  • Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states. 
  • MUST see attached application list above for fitment.
  • This engine features a 1 piece rear main seal crankshaft. If replacing an engine that was originally a 2 piece rear main seal, a new Flexplate, or Flywheel, will be required.
  • Features External 42.5 oz. imbalance. Recommend GM flywheel 14096987, or TCI flexplate 399973.



This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!

Part Number: G4547090

Description:

This engine is designed and manufactured to factory specs for the specified vehicles below. It's manufactured using tighter machining tolerances, higher quality components, and finer balancing of the rotating assembly to make this engine better than the original while still meeting the description of a “replacement” engine.

View the Application List HERE

Dyno Tested Warranty

Block:

  • NEW BluePrint Cast Iron Block, 454 BBC
    Manufactured and Machined in the USA!
    4-Bolt Main
    4.000" Stroke,
    1-Piece Rear Main Seal
    Mech fuel pump provision: Yes
    Standard Deck

Rotating Assembly:

  • New BluePrint 1 Piece Rear Main Seal steel crankshaft
  • 4.000" Stroke  4.250" Bore
  • OEM type 6.135" connecting rods w/ 150,000 psi bolts
  • OEM spec pistons
  • External Front Internal Rear

Cylinder Heads:

  • Iron Heads 

Cam Specs:

  • Cam Type: Flat Tappet
  • OEM spec per listed vehicles

Ignition Timing:

  • OEM Specifications

Also Includes:

  • New valve covers, oil pan and timing cover
  • Dyno tested and shipped with results

Warranty:

  • 30 month / 50,000 mile

Notes:

  • Designed as factory replacement longblock for specified vehicles and year ranges, using OEM specification parts. Customer to re-use existing intake manifold, ecu (if equipped), exhaust, fuel system etc. Modification or replacement of provided tinware, and minor accommodations such as dipstick location may be required. 

  • Specifically designed as an OEM spec engine to meet emissions requirements of the specified vehicles, to meet the criteria of "replacement engine" in all 50 states. 
  • MUST see attached application list above for fitment.
  • This engine features a 1 piece rear main seal crankshaft. If replacing an engine that was originally a 2 piece rear main seal, a new Flexplate, or Flywheel, will be required.
  • Features External 42.5 oz. imbalance. Recommend GM flywheel 14096987, or TCI flexplate 399973.



Customer Reviews

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Your BluePrint engine was dyno tested with the parts and specifications listed below.  If you prefer to install a different part, your engine may not produce the horsepower recorded on your dyno sheet.

 

Part Number: G4547090

Fuel Delivery Type: OEM

Spark Plug: ACDELCO R44T

Spark Plug Gap: .044"

Harmonic Balancer: Weighted, 8" diameter

Flexplate/Flywheel: Weighted

Stall Converter: OEM

Intake Manifold: Dual plane, satin aluminum

Fuel Recommendation: 87 Octane

Timing (Initial/Total Advance): Controlled by OEM ECU

Firing Order: 1,8,4,3,6,5,7,2

Recommended Break in Oil : BPP710 (Click Here)

Recommended Service Oil : BPP10W30 (Click Here) 

Recommended Oil Filter ; BPP51061 (Click Here)

Total Oil capacity with production oil pan, and Correct BPP51061 Filter : 8 Quarts

Header Partners: HUSLER 770-664-8880   Sanderson 650-583-4590   Lemons 805-239-8998

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Click here to download a copy of the Installation Guide that came with your BluePrint engine.

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